Convert.ToDouble Method (Single)

July 28, 2014

Converts the value of the specified single-precision floating point number to an equivalent double-precision floating point number.

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

public static double ToDouble(
	float value
)

Parameters

value
Type: System.Single
A single-precision floating point number.

Return Value

Type: System.Double
A double-precision floating point number equivalent to the value of value.

The following code sample illustrates the conversion of a Single value to a Double one, using ToDouble.


public void CovertDoubleFloat(double doubleVal)
{
   float floatVal = 0;

   // Double to float conversion cannot overflow.
   floatVal = System.Convert.ToSingle(doubleVal);
   outputBlock.Text += String.Format("{0} as a float is {1}",
      doubleVal, floatVal) + "\n";

   // Conversion from float to double cannot overflow.
   doubleVal = System.Convert.ToDouble(floatVal);
   outputBlock.Text += String.Format("{0} as a double is: {1}",
      floatVal, doubleVal) + "\n";
}


Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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