Saves the compiled XSL that differs from the default XSL.
Assembly: Microsoft.SharePoint.Publishing (in Microsoft.SharePoint.Publishing.dll)
- Type: 
A compiled XSL that is a delta of the customized XSL and the default XSL, and some protection code.
- Type: System.String
A hash key that uniquely identifies the compiled delta XSL
If the default XSL is changed in any way, a delta between the original safe XSL and the new XSL is created in order to keep XSL transforms from shutting down the server. The delta, which possibly is unsafe, is compiled with added code to protect against infinite loops. The SaveCustomizedXsl(System.Byte,System.String) method allows subclasses of the DataFormWebPart class to cache the results of the compilation of the delta.