Form.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / MIT / System / Web / UI / MobileControls / Form.cs / 1305376 / Form.cs

                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

using System.Web.Mobile; 
using System.Web.UI; 
using System.Collections;
using System.ComponentModel; 
using System.ComponentModel.Design;
using System.Globalization;
using System.Security.Permissions;
 
namespace System.Web.UI.MobileControls
{ 
    ///  
    [
        ControlBuilderAttribute(typeof(FormControlBuilder)), 
        DefaultEvent("Activate"),
        Designer(typeof(System.Web.UI.Design.MobileControls.FormDesigner)),
        DesignerAdapter(typeof(System.Web.UI.MobileControls.Adapters.HtmlFormAdapter)),
        PersistChildren(true), 
        ToolboxData("<{0}:Form runat=\"server\">"),
        ToolboxItem("System.Web.UI.Design.WebControlToolboxItem, " + AssemblyRef.SystemDesign) 
    ] 
    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
    [Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
    public class Form : Panel, ITemplateable, IPostBackEventHandler
    {
 
        private static readonly Object EventActivate         = new Object();
        private static readonly Object EventDeactivate       = new Object(); 
        private static readonly Object EventPaginated        = new Object(); 

        private PagerStyle _pagerStyle; 
        private int _cachedCurrentPage = -1;
        private Panel _headerContainer = null;
        private Panel _footerContainer = null;
        private Panel _scriptContainer = null; 

        ///  
        public Form() 
        {
            _pagerStyle = new PagerStyle(); 
            _pagerStyle.SetControl(this);
        }

        ///  
        /// 
        ///  
        /// Gets or sets the title used to identify the form. 
        /// 
        ///  
        /// 
        /// 
        /// The title may be rendered as part of the form, on devices
        /// that support a title separate from page content (e.g., on 
        /// the title bar of a browser using the title tag in HTML).
        ///  
        ///  
        [
            Bindable(true), 
            DefaultValue(""),
            MobileCategory(SR.Category_Appearance),
            MobileSysDescription(SR.Form_Title)
        ] 
        public String Title
        { 
            get 
            {
                String s = (String) ViewState["Title"]; 
                return((s != null) ? s : String.Empty);
            }
            set
            { 
                ViewState["Title"] = value;
            } 
        } 

        ///  
        [
            Bindable(true),
            DefaultValue(FormMethod.Post),
            MobileCategory(SR.Category_Behavior), 
            MobileSysDescription(SR.Form_Method)
        ] 
        public FormMethod Method 
        {
            get 
            {
                Object o = ViewState["Method"];
                return ((o != null) ? (FormMethod)o : FormMethod.Post);
            } 
            set
            { 
                ViewState["Method"] = value; 
            }
        } 

        /// 
        [
            Bindable(true), 
            DefaultValue(""),
            Editor(typeof(System.Web.UI.Design.UrlEditor), 
                typeof(System.Drawing.Design.UITypeEditor)), 
            MobileCategory(SR.Category_Behavior),
            MobileSysDescription(SR.Form_Action) 
        ]
        public String Action
        {
            get 
            {
                String s = (String) ViewState["Action"]; 
                return((s != null) ? s : String.Empty); 
            }
            set 
            {
                ViewState["Action"] = value;
            }
        } 

        ///  
        [ 
            DefaultValue(null),
            DesignerSerializationVisibility(DesignerSerializationVisibility.Content), 
            MobileCategory(SR.Category_Style),
            MobileSysDescription(SR.Form_PagerStyle),
            NotifyParentProperty(true)
        ] 
        public PagerStyle PagerStyle
        { 
            get 
            {
                return _pagerStyle; 
            }
        }

        ///  
        protected void RaisePostBackEvent(String eventArgument)
        { 
            // If the event argument is all numeric, then it's a pager event. 

            bool notANumber = false; 
            int length = eventArgument.Length;
            for (int i = 0; i < length; i++)
            {
                char c = eventArgument[i]; 
                if (c < '0' || c > '9')
                { 
                    notANumber = true; 
                    break;
                } 
            }

            if (!notANumber && length > 0)
            { 
                try
                { 
                    int page = Int32.Parse(eventArgument, CultureInfo.InvariantCulture); 
                    if (page > 0)
                    { 
                        int oldPage = _currentPage;
                        if(_cachedCurrentPage == -1)
                        {
                            _currentPage = page; 
                            _cachedCurrentPage = page;
                        } 
 
                        // currentpage may != page if page is invalid
                        OnPageChange(oldPage, _currentPage); 
                    }
                    return;
                }
                catch 
                {
                    // Argument may be invalid number, so let adapter handle it. 
                } 
            }
 
            Adapter.HandlePostBackEvent(eventArgument);
        }

        ///  
        [
            MobileCategory(SR.Category_Action), 
            MobileSysDescription(SR.Form_OnActivate) 
        ]
        public event EventHandler Activate 
        {
            add
            {
                Events.AddHandler(EventActivate, value); 
            }
            remove 
            { 
                Events.RemoveHandler(EventActivate, value);
            } 
        }

        /// 
        [ 
            MobileCategory(SR.Category_Action),
            MobileSysDescription(SR.Form_OnDeactivate) 
        ] 
        public event EventHandler Deactivate
        { 
            add
            {
                Events.AddHandler(EventDeactivate, value);
            } 
            remove
            { 
                Events.RemoveHandler(EventDeactivate, value); 
            }
        } 

        /// 
        [
            MobileCategory(SR.Category_Action), 
            MobileSysDescription(SR.Form_OnPaginated)
        ] 
        public event EventHandler Paginated 
        {
            add 
            {
                Events.AddHandler(EventPaginated, value);
            }
            remove 
            {
                Events.RemoveHandler(EventPaginated, value); 
            } 
        }
 
        /// 
        [
            Bindable(false),
            Browsable(false), 
            DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
        ] 
        public Panel Header 
        {
            get 
            {
                return _headerContainer;
            }
        } 

        ///  
        [ 
            Bindable(false),
            Browsable(false), 
            DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
        ]
        public Panel Footer
        { 
            get
            { 
                return _footerContainer; 
            }
        } 

        /// 
        [
            Bindable(false), 
            Browsable(false),
            DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) 
        ] 
        public Panel Script
        { 
            get
            {
                return _scriptContainer;
            } 
        }
 
        internal bool Activated = false; 

        internal void FireActivate(EventArgs e) 
        {
            if (!Activated)
            {
                Activated = true; 
                OnActivate(e);
            } 
        } 

        internal void FireDeactivate(EventArgs e) 
        {
            if (Activated)
            {
                Activated = false; 
                OnDeactivate(e);
            } 
        } 

        ///  
        protected virtual void OnActivate(EventArgs e)
        {
            EventHandler onActivate = (EventHandler)Events[EventActivate];
            if (onActivate != null) 
            {
                onActivate(this, e); 
            } 
        }
 
        /// 
        protected virtual void OnDeactivate(EventArgs e)
        {
            EventHandler onDeactivate = (EventHandler)Events[EventDeactivate]; 
            if (onDeactivate != null)
            { 
                onDeactivate(this, e); 
            }
        } 

        /// 
        public virtual bool HasActivateHandler()
        { 
            return Events[EventActivate] != null;
        } 
 
        /// 
        public virtual bool HasDeactivateHandler() 
        {
            return Events[EventDeactivate] != null;
        }
 
        /// 
        protected virtual void OnPaginated(EventArgs e) 
        { 
            EventHandler onPaginated = (EventHandler)Events[EventPaginated];
            if (onPaginated != null) 
            {
                onPaginated(this, e);
            }
        } 

        ///  
        protected override void OnInit(EventArgs e) 
        {
            if (MobilePage != null && !MobilePage.DesignMode) 
            {
                // Be sure we're not included in any other Forms.
                for (Control control = this.Parent; control != null; control = control.Parent)
                { 
                    Form parentForm = control as Form;
                    if (parentForm != null) 
                    { 
                        throw new Exception(SR.GetString(SR.Form_NestedForms,
                            this.ID, 
                            parentForm.ID));
                    }
                }
            } 

            base.OnInit(e); 
        } 

        ///  
        public IList GetLinkedForms(int optimumPageWeight)
        {
            // Always add itself to the list as the first one
            UniqueSet set = new UniqueSet(); 
            set.Add(this);
 
            // If the form has a deactivate handler, then we 
            // can't send the form with linked forms, because server interaction
            // is necessary to move between forms. 

            if (HasDeactivateHandler())
            {
                return set; 
            }
 
            // Will stop once no new forms are added in a pass, or has 
            // reached the optimum page weight.
 
            int totalWeight = 0;
            int i;

            // negative means the caller doesn't care about the weight 
            bool checkWeight = optimumPageWeight >= 0;
 
            for (i = 0; i < set.Count; i++) 
            {
                Form form = (Form)set[i]; 

                if (checkWeight)
                {
                    totalWeight += form.GetVisibleWeight(); 
                    if (totalWeight > optimumPageWeight)
                    { 
                        break; 
                    }
                } 
                form.AddLinkedForms(set);
            }

            // More forms may have been linked than the total weight allows. 
            // Remove these.
 
            if (i != 0 &&  // i == 0 means only one form is in the list 
                i < set.Count)
            { 
                for (int j = set.Count - 1; j >= i; j--)
                {
                    set.RemoveAt(j);
                } 
            }
 
            return set; 
        }
 
        /// 
        public override void CreateDefaultTemplatedUI(bool doDataBind)
        {
            ITemplate headerTemplate = GetTemplate(Constants.HeaderTemplateTag); 
            ITemplate footerTemplate = GetTemplate(Constants.FooterTemplateTag);
            ITemplate scriptTemplate = GetTemplate(Constants.ScriptTemplateTag); 
 
            if (scriptTemplate != null)
            { 
                _scriptContainer = new TemplateContainer();
                // The scriptTemplate is not added to the controls tree, so no need to do
                // CheckedInstantiateTemplate to check for infinite recursion.
                scriptTemplate.InstantiateIn(_scriptContainer); 
                _scriptContainer.EnablePagination = false;
            } 
 
            if (headerTemplate != null)
            { 
                _headerContainer = new TemplateContainer();
                CheckedInstantiateTemplate (headerTemplate, _headerContainer, this);
                _headerContainer.EnablePagination = false;
                Controls.AddAt(0, _headerContainer); 
            }
 
            if (footerTemplate != null) 
            {
                _footerContainer = new TemplateContainer(); 
                CheckedInstantiateTemplate (footerTemplate, _footerContainer, this);
                _footerContainer.EnablePagination = false;
                Controls.Add(_footerContainer);
            } 

            // Do not call base.CreateDefaultTemplatedUI(), since we don't want 
            // Forms to have ContentTemplates as Panels do. 
        }
 
        private int _pageCount = -1;
        /// 
        [
            Bindable(false), 
            Browsable(false),
            DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) 
        ] 
        public int PageCount
        { 
            get
            {
                // If not yet paginated, it's okay to return -1.
 
                return _pageCount;
            } 
        } 

        private int _currentPage = 1; 
        /// 
        [
            Bindable(false),
            Browsable(false), 
            DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
        ] 
        public int CurrentPage 
        {
            get 
            {
                return _currentPage;
            }
            set 
            {
                if (_currentPage != value) 
                { 
                    OnPageChange (_currentPage, value);
                } 
                _currentPage = value;
                _cachedCurrentPage = _currentPage;
            }
        } 

        ///  
        [ 
            Bindable(false),
            Browsable(false), 
            DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden),
            EditorBrowsable(EditorBrowsableState.Never)
        ]
        public override bool BreakAfter 
        {
            get 
            { 
                if (MobilePage.DesignMode)
                { 
                    return true;
                }
                throw new Exception(
                    SR.GetString(SR.Form_PropertyNotAccessible, "BreakAfter")); 
            }
 
            set 
            {
                throw new Exception( 
                    SR.GetString(SR.Form_PropertyNotSettable, "BreakAfter"));
            }
        }
 
        /// 
        protected override void OnPreRender(EventArgs e) 
        { 
            // AUI 3630
            base.OnPreRender(e); 

            _pageCount = PaginateForm();

            // Clamp to 1 < _currentPage <= PageCount 

            int page = Math.Max(Math.Min(_currentPage, _pageCount), 1); 
            if(_currentPage != page) 
            {
                _currentPage = page; 
            }

            if ((Paginate) || (ControlToPaginate != null))
            { 
                OnPaginated(new EventArgs());
            } 
        } 

        ///  
        protected override void Render(HtmlTextWriter writer)
        {
            MobilePage.EnterFormRender(this);
            OnRender(writer); 
            MobilePage.ExitFormRender();
        } 
 
        private int PaginateForm()
        { 
            int pageWeight = MobilePage.Adapter.OptimumPageWeight;
            if (Header != null)
            {
                pageWeight -= Header.VisibleWeight; 
            }
            if (Footer != null) 
            { 
                pageWeight -= Footer.VisibleWeight;
            } 
            if (pageWeight <= 0)
            {
                //
 

                pageWeight = MobilePage.Adapter.OptimumPageWeight / 2; 
            } 

            if (IsFormPaginationAllowed()) 
            {
                if ((Paginate) || (ControlToPaginate == this))
                {
                    ControlPager pager = new ControlPager(this, pageWeight); 
                    base.PaginateRecursive(pager);
                    return pager.PageCount; 
                } 
                else if(ControlToPaginate != null)
                { 
                    ControlPager pager = new ControlPager(this, pageWeight);
                    SetControlPage(1);
                    Control control = ControlToPaginate;
                    MobileControl ctp = control as MobileControl; 
                    if(ctp != null)
                    { 
                        ctp.PaginateRecursive(pager); 
                    }
                    else 
                    {
                        int firstAssignedPage = -1;
                        DoPaginateChildren(pager, control, ref firstAssignedPage);
                    } 
                    while(control != this)
                    { 
                        MobileControl mc = control as MobileControl; 
                        if(mc != null)
                        { 
                            if(mc is Form)
                            {
                                throw(new Exception(SR.GetString(SR.Form_InvalidControlToPaginateForm)));
                            } 
                            if (mc.FirstPage > ctp.FirstPage)
                            { 
                                mc.FirstPage = ctp.FirstPage; 
                            }
                            if(mc.LastPage < ctp.LastPage) 
                            {
                                mc.LastPage = ctp.LastPage;
                            }
                        } 
                        control = control.Parent;
                    } 
                    this.LastPage = Math.Max(pager.PageCount, 1); 
                    if(Header != null)
                    { 
                        SetEnablePaginationRecursive(Header, false);
                    }
                    if(Footer != null)
                    { 
                        SetEnablePaginationRecursive(Footer, false);
                    } 
                    return this.LastPage; 
                }
            } 

            return 1;
        }
 
        private bool IsFormPaginationAllowed()
        { 
            // AUI 4721 

            if (Action.Length == 0) 
            {
                return true;
            }
 
            MobileCapabilities device = (MobileCapabilities)Page.Request.Browser;
            String type = device.PreferredRenderingType; 
            bool javascriptSupported = device.JavaScript; 

            return javascriptSupported || 
                    (type != MobileCapabilities.PreferredRenderingTypeHtml32 &&
                     type != MobileCapabilities.PreferredRenderingTypeChtml10);
        }
 
        /// 
        public override void PaginateRecursive(ControlPager pager) 
        { 
            _pageCount = PaginateForm();
        } 

        /// 
        protected override bool PaginateChildren
        { 
            get
            { 
                return true; 
            }
        } 

        private Control _controlToPaginate = null;

        ///  
        [
            Bindable(false), 
            Browsable(false), 
            DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
        ] 
        public Control ControlToPaginate
        {
            get
            { 
                if(_controlToPaginate != null)
                { 
                    return _controlToPaginate; 
                }
                if(ViewState["ControlToPaginate"] != null) 
                {
                    _controlToPaginate = Page.FindControl((ViewState["ControlToPaginate"]).ToString());
                }
                return _controlToPaginate; 
            }
            set 
            { 
                if(value != null)
                { 
                    ViewState["ControlToPaginate"] = value.UniqueID;
                }
                else
                { 
                    ViewState.Remove("ControlToPaginate");
                } 
                _controlToPaginate = value; 
            }
        } 

        /// 
        protected override void LoadPrivateViewState(Object state)
        { 
            _currentPage = state != null ? (int)state : 1;
        } 
 
        /// 
        protected override Object SavePrivateViewState() 
        {
            int currentPage = _currentPage;
            if (currentPage > 1 && this == MobilePage.ActiveForm)
            { 
                return currentPage;
            } 
            else 
            {
                return null; 
            }
        }

        ///  
        protected override void OnDataBinding(EventArgs e)
        { 
            if(Script != null) 
            {
                Script.DataBind(); 
            }
            base.OnDataBinding(e);
        }
 
        private IPostBackEventHandler _defaultEventHandler = null;
        internal void RegisterEventHandler(IPostBackEventHandler control) 
        { 
            if (_defaultEventHandler == null)
            { 
                _defaultEventHandler = control;
            }
        }
 
        internal IPostBackEventHandler DefaultEventHandler
        { 
            get 
            {
                return _defaultEventHandler; 
            }
        }

        internal override void InvalidateParentStyles() 
        {
            PagerStyle.InvalidateParentStyle(); 
            base.InvalidateParentStyles(); 
        }
 
        #region IPostBackEventHandler implementation
        void IPostBackEventHandler.RaisePostBackEvent(String eventArgument) {
            RaisePostBackEvent(eventArgument);
        } 
        #endregion
    } 
 
    /// 
    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
    [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    [Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
    public class FormControlBuilder : LiteralTextContainerControlBuilder
    { 
        /// 
        public override void AppendSubBuilder(ControlBuilder subBuilder) 
        { 
            Type controlType = subBuilder.ControlType;
            if(!( 
                 (subBuilder.GetType().FullName == "System.Web.UI.CodeBlockBuilder") ||
                 (typeof(MobileControl).IsAssignableFrom(controlType)) ||
                 (typeof(UserControl).IsAssignableFrom(controlType)) ||
                 (typeof(DeviceSpecific).IsAssignableFrom(controlType)) 
                 ))
            { 
                throw(new Exception(SR.GetString(SR.Form_InvalidSubControlType, subBuilder.TagName))); 
            }
            base.AppendSubBuilder(subBuilder); 
        }
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

using System.Web.Mobile; 
using System.Web.UI; 
using System.Collections;
using System.ComponentModel; 
using System.ComponentModel.Design;
using System.Globalization;
using System.Security.Permissions;
 
namespace System.Web.UI.MobileControls
{ 
    ///  
    [
        ControlBuilderAttribute(typeof(FormControlBuilder)), 
        DefaultEvent("Activate"),
        Designer(typeof(System.Web.UI.Design.MobileControls.FormDesigner)),
        DesignerAdapter(typeof(System.Web.UI.MobileControls.Adapters.HtmlFormAdapter)),
        PersistChildren(true), 
        ToolboxData("<{0}:Form runat=\"server\">"),
        ToolboxItem("System.Web.UI.Design.WebControlToolboxItem, " + AssemblyRef.SystemDesign) 
    ] 
    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
    [Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
    public class Form : Panel, ITemplateable, IPostBackEventHandler
    {
 
        private static readonly Object EventActivate         = new Object();
        private static readonly Object EventDeactivate       = new Object(); 
        private static readonly Object EventPaginated        = new Object(); 

        private PagerStyle _pagerStyle; 
        private int _cachedCurrentPage = -1;
        private Panel _headerContainer = null;
        private Panel _footerContainer = null;
        private Panel _scriptContainer = null; 

        ///  
        public Form() 
        {
            _pagerStyle = new PagerStyle(); 
            _pagerStyle.SetControl(this);
        }

        ///  
        /// 
        ///  
        /// Gets or sets the title used to identify the form. 
        /// 
        ///  
        /// 
        /// 
        /// The title may be rendered as part of the form, on devices
        /// that support a title separate from page content (e.g., on 
        /// the title bar of a browser using the title tag in HTML).
        ///  
        ///  
        [
            Bindable(true), 
            DefaultValue(""),
            MobileCategory(SR.Category_Appearance),
            MobileSysDescription(SR.Form_Title)
        ] 
        public String Title
        { 
            get 
            {
                String s = (String) ViewState["Title"]; 
                return((s != null) ? s : String.Empty);
            }
            set
            { 
                ViewState["Title"] = value;
            } 
        } 

        ///  
        [
            Bindable(true),
            DefaultValue(FormMethod.Post),
            MobileCategory(SR.Category_Behavior), 
            MobileSysDescription(SR.Form_Method)
        ] 
        public FormMethod Method 
        {
            get 
            {
                Object o = ViewState["Method"];
                return ((o != null) ? (FormMethod)o : FormMethod.Post);
            } 
            set
            { 
                ViewState["Method"] = value; 
            }
        } 

        /// 
        [
            Bindable(true), 
            DefaultValue(""),
            Editor(typeof(System.Web.UI.Design.UrlEditor), 
                typeof(System.Drawing.Design.UITypeEditor)), 
            MobileCategory(SR.Category_Behavior),
            MobileSysDescription(SR.Form_Action) 
        ]
        public String Action
        {
            get 
            {
                String s = (String) ViewState["Action"]; 
                return((s != null) ? s : String.Empty); 
            }
            set 
            {
                ViewState["Action"] = value;
            }
        } 

        ///  
        [ 
            DefaultValue(null),
            DesignerSerializationVisibility(DesignerSerializationVisibility.Content), 
            MobileCategory(SR.Category_Style),
            MobileSysDescription(SR.Form_PagerStyle),
            NotifyParentProperty(true)
        ] 
        public PagerStyle PagerStyle
        { 
            get 
            {
                return _pagerStyle; 
            }
        }

        ///  
        protected void RaisePostBackEvent(String eventArgument)
        { 
            // If the event argument is all numeric, then it's a pager event. 

            bool notANumber = false; 
            int length = eventArgument.Length;
            for (int i = 0; i < length; i++)
            {
                char c = eventArgument[i]; 
                if (c < '0' || c > '9')
                { 
                    notANumber = true; 
                    break;
                } 
            }

            if (!notANumber && length > 0)
            { 
                try
                { 
                    int page = Int32.Parse(eventArgument, CultureInfo.InvariantCulture); 
                    if (page > 0)
                    { 
                        int oldPage = _currentPage;
                        if(_cachedCurrentPage == -1)
                        {
                            _currentPage = page; 
                            _cachedCurrentPage = page;
                        } 
 
                        // currentpage may != page if page is invalid
                        OnPageChange(oldPage, _currentPage); 
                    }
                    return;
                }
                catch 
                {
                    // Argument may be invalid number, so let adapter handle it. 
                } 
            }
 
            Adapter.HandlePostBackEvent(eventArgument);
        }

        ///  
        [
            MobileCategory(SR.Category_Action), 
            MobileSysDescription(SR.Form_OnActivate) 
        ]
        public event EventHandler Activate 
        {
            add
            {
                Events.AddHandler(EventActivate, value); 
            }
            remove 
            { 
                Events.RemoveHandler(EventActivate, value);
            } 
        }

        /// 
        [ 
            MobileCategory(SR.Category_Action),
            MobileSysDescription(SR.Form_OnDeactivate) 
        ] 
        public event EventHandler Deactivate
        { 
            add
            {
                Events.AddHandler(EventDeactivate, value);
            } 
            remove
            { 
                Events.RemoveHandler(EventDeactivate, value); 
            }
        } 

        /// 
        [
            MobileCategory(SR.Category_Action), 
            MobileSysDescription(SR.Form_OnPaginated)
        ] 
        public event EventHandler Paginated 
        {
            add 
            {
                Events.AddHandler(EventPaginated, value);
            }
            remove 
            {
                Events.RemoveHandler(EventPaginated, value); 
            } 
        }
 
        /// 
        [
            Bindable(false),
            Browsable(false), 
            DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
        ] 
        public Panel Header 
        {
            get 
            {
                return _headerContainer;
            }
        } 

        ///  
        [ 
            Bindable(false),
            Browsable(false), 
            DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
        ]
        public Panel Footer
        { 
            get
            { 
                return _footerContainer; 
            }
        } 

        /// 
        [
            Bindable(false), 
            Browsable(false),
            DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) 
        ] 
        public Panel Script
        { 
            get
            {
                return _scriptContainer;
            } 
        }
 
        internal bool Activated = false; 

        internal void FireActivate(EventArgs e) 
        {
            if (!Activated)
            {
                Activated = true; 
                OnActivate(e);
            } 
        } 

        internal void FireDeactivate(EventArgs e) 
        {
            if (Activated)
            {
                Activated = false; 
                OnDeactivate(e);
            } 
        } 

        ///  
        protected virtual void OnActivate(EventArgs e)
        {
            EventHandler onActivate = (EventHandler)Events[EventActivate];
            if (onActivate != null) 
            {
                onActivate(this, e); 
            } 
        }
 
        /// 
        protected virtual void OnDeactivate(EventArgs e)
        {
            EventHandler onDeactivate = (EventHandler)Events[EventDeactivate]; 
            if (onDeactivate != null)
            { 
                onDeactivate(this, e); 
            }
        } 

        /// 
        public virtual bool HasActivateHandler()
        { 
            return Events[EventActivate] != null;
        } 
 
        /// 
        public virtual bool HasDeactivateHandler() 
        {
            return Events[EventDeactivate] != null;
        }
 
        /// 
        protected virtual void OnPaginated(EventArgs e) 
        { 
            EventHandler onPaginated = (EventHandler)Events[EventPaginated];
            if (onPaginated != null) 
            {
                onPaginated(this, e);
            }
        } 

        ///  
        protected override void OnInit(EventArgs e) 
        {
            if (MobilePage != null && !MobilePage.DesignMode) 
            {
                // Be sure we're not included in any other Forms.
                for (Control control = this.Parent; control != null; control = control.Parent)
                { 
                    Form parentForm = control as Form;
                    if (parentForm != null) 
                    { 
                        throw new Exception(SR.GetString(SR.Form_NestedForms,
                            this.ID, 
                            parentForm.ID));
                    }
                }
            } 

            base.OnInit(e); 
        } 

        ///  
        public IList GetLinkedForms(int optimumPageWeight)
        {
            // Always add itself to the list as the first one
            UniqueSet set = new UniqueSet(); 
            set.Add(this);
 
            // If the form has a deactivate handler, then we 
            // can't send the form with linked forms, because server interaction
            // is necessary to move between forms. 

            if (HasDeactivateHandler())
            {
                return set; 
            }
 
            // Will stop once no new forms are added in a pass, or has 
            // reached the optimum page weight.
 
            int totalWeight = 0;
            int i;

            // negative means the caller doesn't care about the weight 
            bool checkWeight = optimumPageWeight >= 0;
 
            for (i = 0; i < set.Count; i++) 
            {
                Form form = (Form)set[i]; 

                if (checkWeight)
                {
                    totalWeight += form.GetVisibleWeight(); 
                    if (totalWeight > optimumPageWeight)
                    { 
                        break; 
                    }
                } 
                form.AddLinkedForms(set);
            }

            // More forms may have been linked than the total weight allows. 
            // Remove these.
 
            if (i != 0 &&  // i == 0 means only one form is in the list 
                i < set.Count)
            { 
                for (int j = set.Count - 1; j >= i; j--)
                {
                    set.RemoveAt(j);
                } 
            }
 
            return set; 
        }
 
        /// 
        public override void CreateDefaultTemplatedUI(bool doDataBind)
        {
            ITemplate headerTemplate = GetTemplate(Constants.HeaderTemplateTag); 
            ITemplate footerTemplate = GetTemplate(Constants.FooterTemplateTag);
            ITemplate scriptTemplate = GetTemplate(Constants.ScriptTemplateTag); 
 
            if (scriptTemplate != null)
            { 
                _scriptContainer = new TemplateContainer();
                // The scriptTemplate is not added to the controls tree, so no need to do
                // CheckedInstantiateTemplate to check for infinite recursion.
                scriptTemplate.InstantiateIn(_scriptContainer); 
                _scriptContainer.EnablePagination = false;
            } 
 
            if (headerTemplate != null)
            { 
                _headerContainer = new TemplateContainer();
                CheckedInstantiateTemplate (headerTemplate, _headerContainer, this);
                _headerContainer.EnablePagination = false;
                Controls.AddAt(0, _headerContainer); 
            }
 
            if (footerTemplate != null) 
            {
                _footerContainer = new TemplateContainer(); 
                CheckedInstantiateTemplate (footerTemplate, _footerContainer, this);
                _footerContainer.EnablePagination = false;
                Controls.Add(_footerContainer);
            } 

            // Do not call base.CreateDefaultTemplatedUI(), since we don't want 
            // Forms to have ContentTemplates as Panels do. 
        }
 
        private int _pageCount = -1;
        /// 
        [
            Bindable(false), 
            Browsable(false),
            DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) 
        ] 
        public int PageCount
        { 
            get
            {
                // If not yet paginated, it's okay to return -1.
 
                return _pageCount;
            } 
        } 

        private int _currentPage = 1; 
        /// 
        [
            Bindable(false),
            Browsable(false), 
            DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
        ] 
        public int CurrentPage 
        {
            get 
            {
                return _currentPage;
            }
            set 
            {
                if (_currentPage != value) 
                { 
                    OnPageChange (_currentPage, value);
                } 
                _currentPage = value;
                _cachedCurrentPage = _currentPage;
            }
        } 

        ///  
        [ 
            Bindable(false),
            Browsable(false), 
            DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden),
            EditorBrowsable(EditorBrowsableState.Never)
        ]
        public override bool BreakAfter 
        {
            get 
            { 
                if (MobilePage.DesignMode)
                { 
                    return true;
                }
                throw new Exception(
                    SR.GetString(SR.Form_PropertyNotAccessible, "BreakAfter")); 
            }
 
            set 
            {
                throw new Exception( 
                    SR.GetString(SR.Form_PropertyNotSettable, "BreakAfter"));
            }
        }
 
        /// 
        protected override void OnPreRender(EventArgs e) 
        { 
            // AUI 3630
            base.OnPreRender(e); 

            _pageCount = PaginateForm();

            // Clamp to 1 < _currentPage <= PageCount 

            int page = Math.Max(Math.Min(_currentPage, _pageCount), 1); 
            if(_currentPage != page) 
            {
                _currentPage = page; 
            }

            if ((Paginate) || (ControlToPaginate != null))
            { 
                OnPaginated(new EventArgs());
            } 
        } 

        ///  
        protected override void Render(HtmlTextWriter writer)
        {
            MobilePage.EnterFormRender(this);
            OnRender(writer); 
            MobilePage.ExitFormRender();
        } 
 
        private int PaginateForm()
        { 
            int pageWeight = MobilePage.Adapter.OptimumPageWeight;
            if (Header != null)
            {
                pageWeight -= Header.VisibleWeight; 
            }
            if (Footer != null) 
            { 
                pageWeight -= Footer.VisibleWeight;
            } 
            if (pageWeight <= 0)
            {
                //
 

                pageWeight = MobilePage.Adapter.OptimumPageWeight / 2; 
            } 

            if (IsFormPaginationAllowed()) 
            {
                if ((Paginate) || (ControlToPaginate == this))
                {
                    ControlPager pager = new ControlPager(this, pageWeight); 
                    base.PaginateRecursive(pager);
                    return pager.PageCount; 
                } 
                else if(ControlToPaginate != null)
                { 
                    ControlPager pager = new ControlPager(this, pageWeight);
                    SetControlPage(1);
                    Control control = ControlToPaginate;
                    MobileControl ctp = control as MobileControl; 
                    if(ctp != null)
                    { 
                        ctp.PaginateRecursive(pager); 
                    }
                    else 
                    {
                        int firstAssignedPage = -1;
                        DoPaginateChildren(pager, control, ref firstAssignedPage);
                    } 
                    while(control != this)
                    { 
                        MobileControl mc = control as MobileControl; 
                        if(mc != null)
                        { 
                            if(mc is Form)
                            {
                                throw(new Exception(SR.GetString(SR.Form_InvalidControlToPaginateForm)));
                            } 
                            if (mc.FirstPage > ctp.FirstPage)
                            { 
                                mc.FirstPage = ctp.FirstPage; 
                            }
                            if(mc.LastPage < ctp.LastPage) 
                            {
                                mc.LastPage = ctp.LastPage;
                            }
                        } 
                        control = control.Parent;
                    } 
                    this.LastPage = Math.Max(pager.PageCount, 1); 
                    if(Header != null)
                    { 
                        SetEnablePaginationRecursive(Header, false);
                    }
                    if(Footer != null)
                    { 
                        SetEnablePaginationRecursive(Footer, false);
                    } 
                    return this.LastPage; 
                }
            } 

            return 1;
        }
 
        private bool IsFormPaginationAllowed()
        { 
            // AUI 4721 

            if (Action.Length == 0) 
            {
                return true;
            }
 
            MobileCapabilities device = (MobileCapabilities)Page.Request.Browser;
            String type = device.PreferredRenderingType; 
            bool javascriptSupported = device.JavaScript; 

            return javascriptSupported || 
                    (type != MobileCapabilities.PreferredRenderingTypeHtml32 &&
                     type != MobileCapabilities.PreferredRenderingTypeChtml10);
        }
 
        /// 
        public override void PaginateRecursive(ControlPager pager) 
        { 
            _pageCount = PaginateForm();
        } 

        /// 
        protected override bool PaginateChildren
        { 
            get
            { 
                return true; 
            }
        } 

        private Control _controlToPaginate = null;

        ///  
        [
            Bindable(false), 
            Browsable(false), 
            DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
        ] 
        public Control ControlToPaginate
        {
            get
            { 
                if(_controlToPaginate != null)
                { 
                    return _controlToPaginate; 
                }
                if(ViewState["ControlToPaginate"] != null) 
                {
                    _controlToPaginate = Page.FindControl((ViewState["ControlToPaginate"]).ToString());
                }
                return _controlToPaginate; 
            }
            set 
            { 
                if(value != null)
                { 
                    ViewState["ControlToPaginate"] = value.UniqueID;
                }
                else
                { 
                    ViewState.Remove("ControlToPaginate");
                } 
                _controlToPaginate = value; 
            }
        } 

        /// 
        protected override void LoadPrivateViewState(Object state)
        { 
            _currentPage = state != null ? (int)state : 1;
        } 
 
        /// 
        protected override Object SavePrivateViewState() 
        {
            int currentPage = _currentPage;
            if (currentPage > 1 && this == MobilePage.ActiveForm)
            { 
                return currentPage;
            } 
            else 
            {
                return null; 
            }
        }

        ///  
        protected override void OnDataBinding(EventArgs e)
        { 
            if(Script != null) 
            {
                Script.DataBind(); 
            }
            base.OnDataBinding(e);
        }
 
        private IPostBackEventHandler _defaultEventHandler = null;
        internal void RegisterEventHandler(IPostBackEventHandler control) 
        { 
            if (_defaultEventHandler == null)
            { 
                _defaultEventHandler = control;
            }
        }
 
        internal IPostBackEventHandler DefaultEventHandler
        { 
            get 
            {
                return _defaultEventHandler; 
            }
        }

        internal override void InvalidateParentStyles() 
        {
            PagerStyle.InvalidateParentStyle(); 
            base.InvalidateParentStyles(); 
        }
 
        #region IPostBackEventHandler implementation
        void IPostBackEventHandler.RaisePostBackEvent(String eventArgument) {
            RaisePostBackEvent(eventArgument);
        } 
        #endregion
    } 
 
    /// 
    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
    [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    [Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
    public class FormControlBuilder : LiteralTextContainerControlBuilder
    { 
        /// 
        public override void AppendSubBuilder(ControlBuilder subBuilder) 
        { 
            Type controlType = subBuilder.ControlType;
            if(!( 
                 (subBuilder.GetType().FullName == "System.Web.UI.CodeBlockBuilder") ||
                 (typeof(MobileControl).IsAssignableFrom(controlType)) ||
                 (typeof(UserControl).IsAssignableFrom(controlType)) ||
                 (typeof(DeviceSpecific).IsAssignableFrom(controlType)) 
                 ))
            { 
                throw(new Exception(SR.GetString(SR.Form_InvalidSubControlType, subBuilder.TagName))); 
            }
            base.AppendSubBuilder(subBuilder); 
        }
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
                        

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