TextViewDesigner.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

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

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

namespace System.Web.UI.Design.MobileControls 
{ 
    using System.ComponentModel;
    using System.Diagnostics; 
    using System.Web.UI.MobileControls;
    using System.Web.UI.MobileControls.Adapters;
    using System.Web.UI.Design.MobileControls.Adapters;
 
    /// 
    ///     
    ///       Provides a designer for the  
    ///       control.
    ///     
    /// 
    /// 
    [
        System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand, 
        Flags=System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)
    ] 
    [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.")] 
    internal class TextViewDesigner : MobileControlDesigner
    { 
        private System.Web.UI.MobileControls.TextView _textView;

        /// 
        ///     
        ///       Initializes the designer with the component for design.
        ///     
        ///  
        /// 
        ///    The control element for design. 
        /// 
        /// 
        ///    
        ///       This is called by the designer host to establish the component for 
        ///       design.
        ///     
        ///  
        /// 
        public override void Initialize(IComponent component) 
        {
            Debug.Assert(component is System.Web.UI.MobileControls.TextView,
                         "TextViewDesigner.Initialize - Invalid TextView Control");
            _textView = (System.Web.UI.MobileControls.TextView) component; 
            base.Initialize(component);
        } 
 
        private bool ValidContainment
        { 
            get
            {
                return (
                    ContainmentStatus == ContainmentStatus.InForm || 
                    ContainmentStatus == ContainmentStatus.InPanel ||
                    ContainmentStatus == ContainmentStatus.InTemplateFrame); 
            } 
        }
 
        /// 
        ///    
        ///       Returns the design-time HTML of the 
        ///       mobile control 
        ///    
        ///  
        ///  
        ///    
        ///       The HTML of the control. 
        ///    
        /// 
        /// 
        protected override String GetDesignTimeNormalHtml() 
        {
            Debug.Assert (_textView.Text != null); 
 
            DesignerTextWriter tw;
            Control[] children = null; 

            String originalText = _textView.Text;
            bool blankText = (originalText.Trim().Length == 0);
            bool hasControls =  _textView.HasControls(); 

            if (blankText) 
            { 
                if (hasControls)
                { 
                    children = new Control[_textView.Controls.Count];
                    _textView.Controls.CopyTo(children, 0);
                }
                _textView.Text = "[" + _textView.ID + "]"; 
            }
            try 
            { 
                tw = new DesignerTextWriter();
                _textView.Adapter.Render(tw); 
            }
            finally
            {
                if (blankText) 
                {
                    _textView.Text = originalText; 
                    if (hasControls) 
                    {
                        foreach (Control c in children) 
                        {
                            _textView.Controls.Add(c);
                        }
                    } 
                }
            } 
 
            return tw.ToString();
        } 

        protected override String GetErrorMessage(out bool infoMode)
        {
            infoMode = false; 

            if (DesignerAdapterUtil.InMobileUserControl(_textView)) 
            { 
                return null;
            } 

            if (DesignerAdapterUtil.InUserControl(_textView))
            {
                infoMode = true; 
                return MobileControlDesigner._userControlWarningMessage;
            } 
 
            if (!DesignerAdapterUtil.InMobilePage(_textView))
            { 
                return MobileControlDesigner._mobilePageErrorMessage;
            }

            if (!ValidContainment) 
            {
                return MobileControlDesigner._formPanelContainmentErrorMessage; 
            } 

            // Containment is valid, return null; 
            return null;
        }
    }
} 


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

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