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HtmlTextWriter.GetTagKey Method

Obtains the HtmlTextWriterTag enumeration value associated with the specified markup element.

Namespace:  System.Web.UI
Assembly:  System.Web (in System.Web.dll)

protected virtual HtmlTextWriterTag GetTagKey(
	string tagName
)

Parameters

tagName
Type: System.String

The markup element for which to obtain the HtmlTextWriterTag.

Return Value

Type: System.Web.UI.HtmlTextWriterTag
The HtmlTextWriterTag enumeration value; otherwise, if tagName is not associated with a specific HtmlTextWriterTag value, Unknown.

If tagName is null, an empty string (""), or cannot be found in the table of markup tag names, the GetTagKey method returns the Unknown field.

The following code example shows how to override the overload of the RenderBeginTag method that takes a string as its parameter. The string is passed to the GetTagKey method, which converts it to the corresponding HtmlTextWriterTag enumeration member, and then passes that to the RenderBeginTag overload that takes a HtmlTextWriterTag enumeration value as a parameter.

public override void RenderBeginTag(string tagName)
{
    // Call the overloaded RenderBeginTag(HtmlTextWriterTag) 
    // method.
    RenderBeginTag(GetTagKey(tagName));
}

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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