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SecurityElement.Escape Method

Replaces invalid XML characters in a string with their valid XML equivalent.

Namespace:  System.Security
Assembly:  mscorlib (in mscorlib.dll)

public static string Escape(
	string str


Type: System.String

The string within which to escape invalid characters.

Return Value

Type: System.String
The input string with invalid characters replaced.

Use this method to replace invalid characters in a string before using the string in a SecurityElement. If invalid characters are used in a SecurityElement without being escaped, an ArgumentException is thrown.

The following table shows the invalid XML characters and their escaped equivalents.

invalid XML Character

Replaced With











The following code shows the use of the Escape method to replace invalid XML characters in a string with their valid XML equivalent. This code example is part of a larger example provided for the SecurityElement class.

tagText = SecurityElement.Escape(tagText);

.NET Framework

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

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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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