Convert.ToInt32 Method (Char)

 

Converts the value of the specified Unicode character to the equivalent 32-bit signed integer.

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

Public Shared Function ToInt32 (
	value As Char
) As Integer

Parameters

value
Type: System.Char

The Unicode character to convert.

Return Value

Type: System.Int32

A 32-bit signed integer that is equivalent to value.

The ToInt32(Char) method returns a 32-bit signed integer that represents the UTF-16 encoded code unit of the value argument. If value is not a low surrogate or a high surrogate, this return value also represents the Unicode code point of value.

The following example converts each element in an array of Char values to an integer.

Dim chars() As Char = { "a"c, "z"c, ChrW(7), ChrW(1023), _
                        ChrW(Short.MaxValue), ChrW(&hFFFE) }
Dim result As Integer

For Each ch As Char in chars
   Try
      result = Convert.ToInt32(ch)
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                        ch.GetType().Name, ch, _
                        result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("Unable to convert u+{0} to an Int32.", _
                        AscW(ch).ToString("X4"))
   End Try
Next   
' The example displays the following output:
'       Converted the Char value 'a' to the Int32 value 97.
'       Converted the Char value 'z' to the Int32 value 122.
'       Converted the Char value '' to the Int32 value 7.
'       Converted the Char value '?' to the Int32 value 1023.
'       Converted the Char value '?' to the Int32 value 32767.
'       Converted the Char value '?' to the Int32 value 65534.

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
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