Convert.ToDouble Method (Int64)
.NET Framework (current version)
Converts the value of the specified 64-bit signed integer to an equivalent double-precision floating-point number.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- value
-
Type:
System.Int64
The 64-bit signed integer to convert.
Return Value
Type: System.DoubleA double-precision floating-point number that is equivalent to value.
The following example converts each element in an array of signed long integers to a Double value.
long[] numbers = { Int64.MinValue, -903, 0, 172, Int64.MaxValue}; double result; foreach (long number in numbers) { result = Convert.ToDouble(number); Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", number.GetType().Name, number, result.GetType().Name, result); } // The example displays the following output: // Converted the Int64 value '-9223372036854775808' to the Double value -9.22337203685478E+18. // Converted the Int64 value '-903' to the Double value -903. // Converted the Int64 value '0' to the Double value 0. // Converted the Int64 value '172' to the Double value 172. // Converted the Int64 value '9223372036854775807' to the Double value 9.22337203685478E+18.
Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
Show: