NameTable.Add Method (Char[], Int32, Int32)

Atomizes the specified string and adds it to the NameTable.

Namespace:  System.Xml
Assemblies:   System.Xml (in System.Xml.dll)
  System.Xml.ReaderWriter (in System.Xml.ReaderWriter.dll)

public override string Add(
	char[] key,
	int start,
	int len


Type: System.Char[]

The character array containing the string to add.

Type: System.Int32

The zero-based index into the array specifying the first character of the string.

Type: System.Int32

The number of characters in the string.

Return Value

Type: System.String
The atomized string or the existing string if one already exists in the NameTable. If len is zero, String.Empty is returned.


0 > start


start >= key.Length


len >= key.Length

The above conditions do not cause an exception to be thrown if len =0.


len < 0.

For more information on atomized strings, see NameTable.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Portable Class Library

Supported in: Portable Class Library
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