ToDouble Method (Int32)

Convert.ToDouble Method (Int32)

Converts the value of the specified 32-bit signed integer to an equivalent double-precision floating-point number.

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

public static double ToDouble(
	int value


Type: System.Int32
The 32-bit signed integer to convert.

Return Value

Type: System.Double
A double-precision floating-point number that is equivalent to value.

The following example converts an Int32 value to a Double value.

		public void ConvertDoubleInt(double doubleVal) {
			int     intVal = 0;
			// Double to int conversion can overflow.
			try {
				intVal = System.Convert.ToInt32(doubleVal);
				System.Console.WriteLine("{0} as an int is: {1}",
					doubleVal, intVal);
			catch (System.OverflowException) {
					"Overflow in double-to-int conversion.");

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