This documentation is archived and is not being maintained.

Char.System.IConvertible.ToDouble Method

This method supports the .NET Framework infrastructure and is not intended to be used directly from your code.

Note   This conversion is not supported. Attempting to do so throws an InvalidCastException.

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

double IConvertible.ToDouble (
	IFormatProvider provider
J# supports the use of explicit interface implementations, but not the declaration of new ones.
JScript supports the use of explicit interface implementations, but not the declarations of new ones.



An IFormatProvider object. (Specify a null reference (Nothing in Visual Basic) because the provider parameter is ignored.)

Return Value

No value is returned.

Exception typeCondition


This conversion is not supported.

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0