SubMenuStyle.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FXUpdate3074 / FXUpdate3074 / 1.1 / untmp / whidbey / QFE / ndp / fx / src / xsp / System / Web / UI / WebControls / SubMenuStyle.cs / 1 / SubMenuStyle.cs
                        

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

namespace System.Web.UI.WebControls { 
    using System.ComponentModel; 
    using System.Drawing;
    using System.Globalization; 
    using System.Text;
    using System.Web.UI;
    using System.Security.Permissions;
 

    ///  
    ///    Specifies the style of a SubMenu. 
    /// 
    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
    [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    public class SubMenuStyle : Style, ICustomTypeDescriptor {
        private const int PROP_VPADDING = 0x00010000;
        private const int PROP_HPADDING = 0x00020000; 

        public SubMenuStyle() : base() { 
        } 

        public SubMenuStyle(StateBag bag) : base(bag) { 
        }

        /// 
        /// Gets and sets the horizontal padding around the node text 
        /// 
        [ 
        DefaultValue(typeof(Unit), ""), 
        WebCategory("Layout"),
        NotifyParentProperty(true), 
        WebSysDescription(SR.SubMenuStyle_HorizontalPadding),
        ]
        public Unit HorizontalPadding {
            get { 
                if (IsSet(PROP_HPADDING)) {
                    return (Unit)(ViewState["HorizontalPadding"]); 
                } 
                return Unit.Empty;
            } 
            set {
                if ((value.Type == UnitType.Percentage) || (value.Value < 0)) {
                    throw new ArgumentOutOfRangeException("value");
                } 
                ViewState["HorizontalPadding"] = value;
                SetBit(PROP_HPADDING); 
            } 
        }
 

        /// 
        /// Gets and sets the vertical padding around the node text
        ///  
        [
        DefaultValue(typeof(Unit), ""), 
        WebCategory("Layout"), 
        NotifyParentProperty(true),
        WebSysDescription(SR.SubMenuStyle_VerticalPadding), 
        ]
        public Unit VerticalPadding {
            get {
                if (IsSet(PROP_VPADDING)) { 
                    return (Unit)(ViewState["VerticalPadding"]);
                } 
                return Unit.Empty; 
            }
            set { 
                if ((value.Type == UnitType.Percentage) || (value.Value < 0)) {
                    throw new ArgumentOutOfRangeException("value");
                }
                ViewState["VerticalPadding"] = value; 
                SetBit(PROP_VPADDING);
            } 
        } 

 
        /// 
        ///    Copies non-blank elements from the specified style, overwriting existing
        ///    style elements if necessary.
        ///  
        public override void CopyFrom(Style s) {
            if (s != null) { 
                base.CopyFrom(s); 

                SubMenuStyle sms = s as SubMenuStyle; 
                if (sms != null && !sms.IsEmpty) {
                    // Only copy the paddings if they aren't in the source Style's registered CSS class
                    if (s.RegisteredCssClass.Length != 0) {
                        if (sms.IsSet(PROP_VPADDING)) { 
                            ViewState.Remove("VerticalPadding");
                            ClearBit(PROP_VPADDING); 
                        } 

                        if (sms.IsSet(PROP_HPADDING)) { 
                            ViewState.Remove("HorizontalPadding");
                            ClearBit(PROP_HPADDING);
                        }
                    } 
                    else {
                        if (sms.IsSet(PROP_VPADDING)) { 
                            this.VerticalPadding = sms.VerticalPadding; 
                        }
 
                        if (sms.IsSet(PROP_HPADDING)) {
                            this.HorizontalPadding = sms.HorizontalPadding;
                        }
                    } 
                }
            } 
        } 

 
        protected override void FillStyleAttributes(CssStyleCollection attributes, IUrlResolutionService urlResolver) {
            // The style will be rendered on container elements that does not contain text directly.
            // It does not render font and forecolor.
            // Users should set font and forecolor on MenuItems styles. 
            // Copying the code from the base class, except for the part that deals with Font and ForeColor.
            StateBag viewState = ViewState; 
            Color c; 

            // BackColor 
            if (base.IsSet(PROP_BACKCOLOR)) {
                c = (Color)viewState["BackColor"];
                if (!c.IsEmpty) {
                    attributes.Add(HtmlTextWriterStyle.BackgroundColor, ColorTranslator.ToHtml(c)); 
                }
            } 
 
            // BorderColor
            if (base.IsSet(PROP_BORDERCOLOR)) { 
                c = (Color)viewState["BorderColor"];
                if (!c.IsEmpty) {
                    attributes.Add(HtmlTextWriterStyle.BorderColor, ColorTranslator.ToHtml(c));
                } 
            }
 
            BorderStyle bs = this.BorderStyle; 
            Unit bu = this.BorderWidth;
            if (!bu.IsEmpty) { 
                attributes.Add(HtmlTextWriterStyle.BorderWidth, bu.ToString(CultureInfo.InvariantCulture));
                if (bs == BorderStyle.NotSet) {
                    if (bu.Value != 0.0) {
                        attributes.Add(HtmlTextWriterStyle.BorderStyle, "solid"); 
                    }
                } 
                else { 
                    attributes.Add(HtmlTextWriterStyle.BorderStyle, borderStyles[(int)bs]);
                } 
            }
            else {
                if (bs != BorderStyle.NotSet) {
                    attributes.Add(HtmlTextWriterStyle.BorderStyle, borderStyles[(int)bs]); 
                }
            } 
 
            Unit u;
 
            // Height
            if (base.IsSet(PROP_HEIGHT)) {
                u = (Unit)viewState["Height"];
                if (!u.IsEmpty) { 
                    attributes.Add(HtmlTextWriterStyle.Height, u.ToString(CultureInfo.InvariantCulture));
                } 
            } 

            // Width 
            if (base.IsSet(PROP_WIDTH)) {
                u = (Unit)viewState["Width"];
                if (!u.IsEmpty) {
                    attributes.Add(HtmlTextWriterStyle.Width, u.ToString(CultureInfo.InvariantCulture)); 
                }
            } 
 
            if (!HorizontalPadding.IsEmpty || !VerticalPadding.IsEmpty) {
                attributes.Add(HtmlTextWriterStyle.Padding, string.Format(CultureInfo.InvariantCulture, 
                    "{0} {1} {0} {1}",
                    VerticalPadding.IsEmpty ? Unit.Pixel(0) : VerticalPadding,
                    HorizontalPadding.IsEmpty ? Unit.Pixel(0) : HorizontalPadding));
            } 
        }
 
 
        /// 
        ///    Copies non-blank elements from the specified style, but will not overwrite 
        ///    any existing style elements.
        /// 
        public override void MergeWith(Style s) {
            if (s != null) { 
                if (IsEmpty) {
                    // Merging with an empty style is equivalent to copying, 
                    // which is more efficient. 
                    CopyFrom(s);
                    return; 
                }

                base.MergeWith(s);
 
                SubMenuStyle sms = s as SubMenuStyle;
                // Since we're already copying the registered CSS class in base.MergeWith, we don't 
                // need to any attributes that would be included in that class. 
                if (sms != null && !sms.IsEmpty && s.RegisteredCssClass.Length == 0) {
                    if (sms.IsSet(PROP_VPADDING) && !this.IsSet(PROP_VPADDING)) { 
                        this.VerticalPadding = sms.VerticalPadding;
                    }

                    if (sms.IsSet(PROP_HPADDING) && !this.IsSet(PROP_HPADDING)) { 
                        this.HorizontalPadding = sms.HorizontalPadding;
                    } 
                } 
            }
        } 


        /// 
        ///    Clears out any defined style elements from the state bag. 
        /// 
        public override void Reset() { 
            if (IsSet(PROP_VPADDING)) 
                ViewState.Remove("VerticalPadding");
            if (IsSet(PROP_HPADDING)) 
                ViewState.Remove("HorizontalPadding");

            base.Reset();
        } 

 
       #region ICustomTypeDesciptor implementation 
      System.ComponentModel.AttributeCollection ICustomTypeDescriptor.GetAttributes() {
         return TypeDescriptor.GetAttributes(this, true); 
      }

       string ICustomTypeDescriptor.GetClassName() {
         return TypeDescriptor.GetClassName(this, true); 
       }
 
       string ICustomTypeDescriptor.GetComponentName() { 
         return TypeDescriptor.GetComponentName(this, true);
       } 

      TypeConverter ICustomTypeDescriptor.GetConverter() {
         return TypeDescriptor.GetConverter(this, true);
      } 

       EventDescriptor ICustomTypeDescriptor.GetDefaultEvent() { 
         return TypeDescriptor.GetDefaultEvent(this, true); 
       }
 
       PropertyDescriptor ICustomTypeDescriptor.GetDefaultProperty() {
         return TypeDescriptor.GetDefaultProperty(this, true);
       }
 
      object ICustomTypeDescriptor.GetEditor(Type editorBaseType) {
         return TypeDescriptor.GetEditor(this, editorBaseType, true); 
      } 

       EventDescriptorCollection ICustomTypeDescriptor.GetEvents() { 
         return TypeDescriptor.GetEvents(this, true);
       }

       EventDescriptorCollection ICustomTypeDescriptor.GetEvents(Attribute[] attributes) { 
         return TypeDescriptor.GetEvents(this, attributes, true);
       } 
 
      PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties() {
         return ((ICustomTypeDescriptor)this).GetProperties(null); 
      }

       PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties(Attribute[] attributes) {
         PropertyDescriptorCollection oldProperties = TypeDescriptor.GetProperties(GetType(), attributes); 
          PropertyDescriptor[] newProperties = new PropertyDescriptor[oldProperties.Count];
 
          PropertyDescriptor fontProperty = oldProperties["Font"]; 
         PropertyDescriptor forecolorProperty = oldProperties["ForeColor"];
 
          Attribute[] newAttributes = new Attribute[] {
                new BrowsableAttribute(false),
                new EditorBrowsableAttribute(EditorBrowsableState.Never),
                new ThemeableAttribute(false), 
            };
 
         for (int i = 0; i < oldProperties.Count; i++) { 
            PropertyDescriptor property = oldProperties[i];
            if ((property == fontProperty) || (property == forecolorProperty)) { 
                newProperties[i] = TypeDescriptor.CreateProperty(GetType(), property, newAttributes);
            }
             else {
                newProperties[i] = property; 
            }
          } 
 
         return new PropertyDescriptorCollection(newProperties, true);
      } 

      object ICustomTypeDescriptor.GetPropertyOwner(PropertyDescriptor pd) {
          return this;
      } 
        #endregion //ICustomTypeDescriptor implementation
 
    } 
}

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

Link Menu

Network programming in C#, Network Programming in VB.NET, Network Programming in .NET
This book is available now!
Buy at Amazon US or
Buy at Amazon UK