DataControlFieldHeaderCell.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / WebControls / DataControlFieldHeaderCell.cs / 1 / DataControlFieldHeaderCell.cs
                        

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

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


    ///  
    /// Creates a special header cell that is contained within a DataControlField.
    ///  
    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
    [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    public class DataControlFieldHeaderCell : DataControlFieldCell { 


        public DataControlFieldHeaderCell(DataControlField containingField) : base(HtmlTextWriterTag.Th, containingField) {
        } 

 
        ///  
        /// 
        /// Sets the abbreviated text for a header cell. The abbreviated text 
        /// is rendered with the HTML ABBR attribute. The ABBR attribute is important
        /// for screen readers since it allows them to read a shortened version of a header for each cell in the table.
        /// 
        ///  
        public virtual string AbbreviatedText {
            get { 
                object x = ViewState["AbbrText"]; 
                return((x == null) ? String.Empty : (string)x);
            } 
            set {
                ViewState["AbbrText"] = value;
            }
        } 

 
        ///  
        /// 
        /// Represents the cells that the header applies to. Renders the HTML scope attribute. Possible values are from the TableHeaderScope enumeration: Column and Row. 
        /// 
        /// 
        public virtual TableHeaderScope Scope {
            get { 
                object x = ViewState["Scope"];
                return((x == null) ? TableHeaderScope.NotSet : (TableHeaderScope)x); 
            } 
            set {
                ViewState["Scope"] = value; 
            }
        }

 
        /// 
        /// Adds header cell attributes to the list of attributes to render. 
        ///  
        protected override void AddAttributesToRender(HtmlTextWriter writer) {
            base.AddAttributesToRender(writer); 

            TableHeaderScope scope = Scope;
            if (scope != TableHeaderScope.NotSet) {
                if (scope == TableHeaderScope.Column) { 
                    writer.AddAttribute(HtmlTextWriterAttribute.Scope, "col");
                } 
                else { 
                    writer.AddAttribute(HtmlTextWriterAttribute.Scope, "row");
                } 
            }

            String abbr = AbbreviatedText;
            if (!String.IsNullOrEmpty(abbr)) { 
                writer.AddAttribute(HtmlTextWriterAttribute.Abbr, abbr);
            } 
        } 
    }
}

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