Information
The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

Convert.ToString Method (Double)

Converts the value of the specified double-precision floating point number to its equivalent String representation.

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

public static string ToString (
	double value
)
public static String ToString (
	double value
)
public static function ToString (
	value : double
) : String

Parameters

value

A double-precision floating point number.

Return Value

The String equivalent of the value of value.

This implementation is identical to Double.ToString.

The following code sample illustrates the conversion of a Double to a String, using ToString.

public void ConvertDoubleString(double doubleVal) {
    
    string    stringVal;     

    // A conversion from Double to string cannot overflow.       
    stringVal = System.Convert.ToString(doubleVal);
    System.Console.WriteLine("{0} as a string is: {1}",
        doubleVal, stringVal);

    try {
        doubleVal = System.Convert.ToDouble(stringVal);
        System.Console.WriteLine("{0} as a double is: {1}",
            stringVal, doubleVal);
    } 
    catch (System.OverflowException) {
        System.Console.WriteLine(
            "Conversion from string-to-double overflowed.");
    }
    catch (System.FormatException) {
        System.Console.WriteLine(
            "The string was not formatted as a double.");
    }
    catch (System.ArgumentException) {
        System.Console.WriteLine(
            "The string pointed to null.");
    }
}

public void ConvertDoubleString(double doubleVal)
{
    String stringVal;

    // A conversion from Double to string cannot overflow.       
    stringVal = System.Convert.ToString(doubleVal);
    System.Console.WriteLine("{0} as a string is: {1}", 
        System.Convert.ToString(doubleVal), stringVal);
    try {        
        doubleVal = System.Convert.ToDouble(stringVal);
        System.Console.WriteLine("{0} as a double is: {1}", stringVal, 
            System.Convert.ToString(doubleVal));
    }
    catch (System.OverflowException exp) {        
        System.Console.WriteLine(
            "Conversion from string-to-double overflowed.");
    }
    catch (System.FormatException exp) {        
        System.Console.WriteLine(
            "The string was not formatted as a double.");
    }
    catch (System.ArgumentException exp) {        
        System.Console.WriteLine("The string pointed to null.");
    }
} //ConvertDoubleString

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0
Was this page helpful?
(1500 characters remaining)
Thank you for your feedback

Community Additions

Show:
© 2014 Microsoft