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Convert.ToSingle Method (Int64)

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Converts the value of the specified 64-bit signed integer to an equivalent single-precision floating point number.

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

Syntax

'Declaration
Public Shared Function ToSingle ( _
    value As Long _
) As Single

public static float ToSingle(
    long value
)

Parameters

Return Value

Type: System.Single
A single-precision floating point number equivalent to the value of value.

Examples

The following code sample illustrates the conversion of an Int64 to Single, using ToSingle. Note that large Int64 values can cause OverflowException to be thrown.

Public Sub ConvertLongFloat(ByVal longVal As Long)

   Dim floatVal As Single

   ' A conversion from Long to float cannot overflow.
   floatVal = System.Convert.ToSingle(longVal)
   outputBlock.Text &= String.Format("{0} as a float is {1}", _
                             longVal, floatVal) & vbCrLf

   ' A conversion from float to long can overflow.
   Try
      longVal = System.Convert.ToInt64(floatVal)
      outputBlock.Text &= String.Format("{0} as a Long is {1}", _
                                floatVal, longVal) & vbCrLf
   Catch exception As System.OverflowException
      outputBlock.Text &= String.Format( _
          "Overflow in float-to-long conversion.") & vbCrLf
   End Try
End Sub

public void ConvertLongFloat(long longVal)
{
   float floatVal;

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

   // A conversion from float to long can overflow.
   try
   {
      longVal = System.Convert.ToInt64(floatVal);
      outputBlock.Text += String.Format("{0} as a long is {1}",
         floatVal, longVal) + "\n";
   }
   catch (System.OverflowException)
   {
      outputBlock.Text += String.Format(
         "Overflow in float-to-long conversion.") + "\n";
   }
}

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.