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TagPrefixInfo.TagPrefix Property

Gets or sets the tag prefix that is being associated with a source file or namespace and assembly.

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

[StringValidatorAttribute(MinLength = )]
[ConfigurationPropertyAttribute("tagPrefix", IsRequired = true, DefaultValue = "/")]
public string TagPrefix { get; set; }

Property Value

Type: System.String
The tag prefix.

The TagPrefix property defines the alias used for the namespace where the control resides. It applies to user and custom controls. This is the value that would precede the tag name in the ASP.NET code. For example "myTag" in <myTag: myControl />.

The following code example shows how to use the TagPrefix property. This code example is part of a larger example provided for the PagesSection class.

// Get all current Controls in the collection. 
for (int i = 0; i < pagesSection.Controls.Count; i++)
  Console.WriteLine("Control {0}:", i);
  Console.WriteLine("  TagPrefix = '{0}' ",
  Console.WriteLine("  TagName = '{0}' ",
  Console.WriteLine("  Source = '{0}' ",
  Console.WriteLine("  Namespace = '{0}' ",
  Console.WriteLine("  Assembly = '{0}' ",

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0