81 lines
2.8 KiB
C#
81 lines
2.8 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="DataControlFieldHeaderCell.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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namespace System.Web.UI.WebControls {
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using System;
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using System.Globalization;
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/// <devdoc>
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/// <para>Creates a special header cell that is contained within a DataControlField.</para>
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/// </devdoc>
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public class DataControlFieldHeaderCell : DataControlFieldCell {
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public DataControlFieldHeaderCell(DataControlField containingField) : base(HtmlTextWriterTag.Th, containingField) {
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}
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/// <devdoc>
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/// <para>
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/// Sets the abbreviated text for a header cell. The abbreviated text
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/// is rendered with the HTML ABBR attribute. The ABBR attribute is important
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/// for screen readers since it allows them to read a shortened version of a header for each cell in the table.
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/// </para>
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/// </devdoc>
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public virtual string AbbreviatedText {
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get {
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object x = ViewState["AbbrText"];
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return((x == null) ? String.Empty : (string)x);
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}
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set {
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ViewState["AbbrText"] = value;
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}
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}
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/// <devdoc>
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/// <para>
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/// Represents the cells that the header applies to. Renders the HTML scope attribute. Possible values are from the TableHeaderScope enumeration: Column and Row.
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/// </para>
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/// </devdoc>
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public virtual TableHeaderScope Scope {
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get {
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object x = ViewState["Scope"];
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return((x == null) ? TableHeaderScope.NotSet : (TableHeaderScope)x);
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}
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set {
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ViewState["Scope"] = value;
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}
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}
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/// <devdoc>
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/// <para>Adds header cell attributes to the list of attributes to render.</para>
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/// </devdoc>
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protected override void AddAttributesToRender(HtmlTextWriter writer) {
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base.AddAttributesToRender(writer);
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TableHeaderScope scope = Scope;
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if (scope != TableHeaderScope.NotSet) {
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if (scope == TableHeaderScope.Column) {
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writer.AddAttribute(HtmlTextWriterAttribute.Scope, "col");
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}
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else {
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writer.AddAttribute(HtmlTextWriterAttribute.Scope, "row");
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}
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}
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String abbr = AbbreviatedText;
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if (!String.IsNullOrEmpty(abbr)) {
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writer.AddAttribute(HtmlTextWriterAttribute.Abbr, abbr);
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}
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}
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}
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}
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