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XmlConvert.ToUInt64 Method

Converts the String to a UInt64 equivalent.

This API is not CLS-compliant. 

Namespace:  System.Xml
Assembly:  System.Xml (in System.Xml.dll)

public static ulong ToUInt64(
	string s


Type: System.String
The string to convert.

Return Value

Type: System.UInt64
A UInt64 equivalent of the string.


s is null.


s is not in the correct format.


s represents a number less than UInt64.MinValue or greater than UInt64.MaxValue.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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