TableHeaderCell.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / WebControls / TableHeaderCell.cs / 1305376 / TableHeaderCell.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

// TableHeaderCell.cs 
// 

namespace System.Web.UI.WebControls { 

    using System;
    using System.Text;
    using System.ComponentModel; 
    using System.Globalization;
    using System.Web; 
    using System.Web.UI; 

    ///  
    ///     Encapsulates
    ///       a header cell within a table.
    /// 
    public class TableHeaderCell : TableCell { 

 
        ///  
        ///    
        ///       Initializes a new instance of the  class. 
        ///    
        /// 
        public TableHeaderCell() : base(HtmlTextWriterTag.Th) {
        } 

 
        ///  
        ///    
        ///     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.
        ///     
        ///  
        [
        WebCategory("Accessibility"), 
        DefaultValue(""), 
        WebSysDescription(SR.TableHeaderCell_AbbreviatedText)
        ] 
        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.
        ///     
        ///  
        [
        WebCategory("Accessibility"), 
        DefaultValue(TableHeaderScope.NotSet),
        WebSysDescription(SR.TableHeaderCell_Scope)
        ]
        public virtual TableHeaderScope Scope { 
            get {
                object x = ViewState["Scope"]; 
                return((x == null) ? TableHeaderScope.NotSet : (TableHeaderScope)x); 
            }
            set { 
                ViewState["Scope"] = value;
            }
        }
 

        ///  
        ///     
        ///     Contains a list of categories associated with the table header (read by screen readers). The categories can be any string values. The categories are rendered as a comma delimited list using the HTML axis attribute.
        ///     
        /// 
        [
        DefaultValue(null),
        TypeConverterAttribute(typeof(StringArrayConverter)), 
        WebCategory("Accessibility"),
        WebSysDescription(SR.TableHeaderCell_CategoryText) 
        ] 
        public virtual string[] CategoryText {
            get { 
                object x = ViewState["CategoryText"];
                return (x != null) ? (string[])((string[])x).Clone() : new string[0];
            }
            set { 
                if (value != null) {
                    ViewState["CategoryText"] = (string[])value.Clone(); 
                } 
                else {
                    ViewState["CategoryText"] = null; 
                }
            }
        }
 

        ///  
        ///  
        ///    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) { 
                writer.AddAttribute(HtmlTextWriterAttribute.Scope, scope.ToString().ToLowerInvariant());
            } 
 
            String abbr = AbbreviatedText;
            if (!String.IsNullOrEmpty(abbr)) { 
                writer.AddAttribute(HtmlTextWriterAttribute.Abbr, abbr);
            }

            string[] arr = CategoryText; 
            if (arr.Length > 0) {
                bool first = true; 
                StringBuilder builder = new StringBuilder(); 
                foreach (string s in arr) {
                    if (first) { 
                        first = false;
                    }
                    else {
                        builder.Append(","); 
                    }
                    builder.Append(s); 
                } 
                string val = builder.ToString();
                if (!String.IsNullOrEmpty(val)) { 
                    writer.AddAttribute(HtmlTextWriterAttribute.Axis, val);
                }
            }
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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TableHeaderCell.cs source code in C# .NET

Source code for the .NET framework in C#

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