Assembly: System.Data (in system.data.dll)
Return ValueThe number of rows affected (the same behavior as ExecuteNonQuery).
asyncResult parameter is null (Nothing in Microsoft Visual Basic)
EndExecuteNonQuery was called more than once for a single command execution, or the method was mismatched against its execution method (for example, the code called EndExecuteNonQuery to complete execution of a call to BeginExecuteXmlReader.
When you call BeginExecuteNonQuery to execute a Transact-SQL statement, you must call EndExecuteNonQuery in order to complete the operation. If the process of executing the command has not yet finished, this method blocks until the operation is complete. Users can verify that the command has completed its operation by using the IAsyncResult instance returned by the BeginExecuteNonQuery method. If a callback procedure was specified in the call to BeginExecuteNonQuery, this method must be called.
Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter EditionThe Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.