// OdbcCommand.Cancel()
//
// In ODBC3.0 ... a call to SQLCancel when no processing is done has no effect at all
// (ODBC Programmer's Reference ...)
//
public override void Cancel()
{
CMDWrapper wrapper = _cmdWrapper;
if (null != wrapper)
{
wrapper.Canceling = true;
OdbcStatementHandle stmt = wrapper.StatementHandle;
if (null != stmt)
{
lock (stmt)
{
// Cancel the statement
ODBC32.RetCode retcode = stmt.Cancel();
// copy of StatementErrorHandler, because stmt may become null
switch (retcode)
{
case ODBC32.RetCode.SUCCESS:
case ODBC32.RetCode.SUCCESS_WITH_INFO:
// don't fire info message events on cancel
break;
default:
throw wrapper.Connection.HandleErrorNoThrow(stmt, retcode);
}
}
}
}
}
public override void Cancel()
{
CMDWrapper wrapper = this._cmdWrapper;
if (wrapper != null)
{
wrapper.Canceling = true;
OdbcStatementHandle statementHandle = wrapper.StatementHandle;
if (statementHandle != null)
{
lock (statementHandle)
{
ODBC32.RetCode retcode = statementHandle.Cancel();
switch (retcode)
{
case ODBC32.RetCode.SUCCESS:
case ODBC32.RetCode.SUCCESS_WITH_INFO:
return;
}
throw wrapper.Connection.HandleErrorNoThrow(statementHandle, retcode);
}
}
}
}