• Article

Convert.ToInt64 Method (Char)

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

Converts the value of the specified Unicode character to the equivalent 64-bit signed integer.

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

Syntax

'Declaration
Public Shared Function ToInt64 ( _
    value As Char _
) As Long

public static long ToInt64(
    char value
)

Parameters

Return Value

Type: System.Int64
The 64-bit signed integer equivalent to value.

Examples

The following code sample illustrates the conversion of a Char value to an Int64, using ToInt64.

Public Sub ConvertLongChar(ByVal longVal As Long)

   Dim charVal As Char = "a"c

   Try
      charVal = System.Convert.ToChar(longVal)
      outputBlock.Text &= String.Format("{0} as a char is {1}", _
                                longVal, charVal) & vbCrLf
   Catch exception As System.OverflowException
      outputBlock.Text &= String.Format( _
          "Overflow in Long-to-Char conversion.") & vbCrLf
   End Try

   ' A conversion from Char to Long cannot overflow.
   longVal = System.Convert.ToInt64(charVal)
   outputBlock.Text &= String.Format("{0} as a Long is {1}", _
                             charVal, longVal) & vbCrLf
End Sub

public void ConvertLongChar(long longVal)
{
   char charVal = 'a';

   try
   {
      charVal = System.Convert.ToChar(longVal);
      outputBlock.Text += String.Format("{0} as a char is {1}",
         longVal, charVal) + "\n";
   }
   catch (System.OverflowException)
   {
      outputBlock.Text += String.Format(
         "Overflow in long-to-char conversion.") + "\n";
   }

   // A conversion from Char to long cannot overflow.
   longVal = System.Convert.ToInt64(charVal);
   outputBlock.Text += String.Format("{0} as an Int64 is {1}",
      charVal, longVal) + "\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.