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Convert.ToDouble Method (Boolean)

Converts the specified Boolean value to the equivalent double-precision floating-point number.

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

public static double ToDouble(
	bool value
)

Parameters

value
Type: System.Boolean
The Boolean value to convert.

Return Value

Type: System.Double
The number 1 if value is true; otherwise, 0.

The following example converts a Boolean value to a Double value.


		public void ConvertDoubleBool(double doubleVal) {
			bool	boolVal;
			// Double to bool conversion cannot overflow.
			boolVal = System.Convert.ToBoolean(doubleVal);
			System.Console.WriteLine("{0} as a Boolean is: {1}.",
				doubleVal, boolVal);

			// bool to double conversion cannot overflow.
			doubleVal = System.Convert.ToDouble(boolVal);
			System.Console.WriteLine("{0} as a double is: {1}.",
				boolVal, doubleVal);
		}


.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.

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