Convert.ToDouble Method (Boolean)


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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


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);

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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