Strings.UCase Method (Char)
Returns a string or character containing the specified string converted to uppercase.
Assembly: Microsoft.VisualBasic (in Microsoft.VisualBasic.dll)
For more detailed information, see the Visual Basic topic UCase Function (Visual Basic).
Only lowercase letters are converted to uppercase; all uppercase letters and nonletter characters remain unchanged.
This function uses the application's culture information when manipulating the string so that the case changes are appropriate for the locale in which the application is being used.
If your application makes security decisions based on the result of a comparison or case-change operation, then the operation should use the String.Compare method, and pass Ordinal or OrdinalIgnoreCase for the comparisonType argument. For more information, see How Culture Affects Strings in Visual Basic.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.