SMO 转账会引发哪种异常？
使用此代码时，
try
{
transfer.TransferData();
}
catch (SmoException smoex)
{
//Do something
}
catch (Exception ex)
{
//Do something else
}
异常总是由第二个 catch 语句捕获。 有人知道为什么会发生这种情况吗？
提前致谢
While using this code
try
{
transfer.TransferData();
}
catch (SmoException smoex)
{
//Do something
}
catch (Exception ex)
{
//Do something else
}
The exception is always caught by the second catch statement.
Does someone know why this happens?
Thanks in Advance
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使用它来确定您实际得到的异常是什么：
Use this to determine what the exception you get actually is:
发生这种情况是因为异常不是
SmoException。它可以是
Exception或派生自Exception的其他异常类型，但不是SmoException。如果SmoException确实是SmoException或派生自SmoException的类，则它会被第一个处理程序捕获。希望这句话读起来不像打字那样令人困惑！有关异常和异常处理的进一步阅读：
http:// msdn.microsoft.com/en-us/library/ms173160(v=vs.80).aspx
文档没有说明抛出什么异常：
http://msdn.microsoft.com/en-us/library/microsoft.sqlserver.management.smo .transfer.transferdata.aspx
This happens because the exception is not an
SmoException.It is either an
Exceptionor another exception type deriving fromException, but notSmoException.SmoExceptionwould be caught by the first handler if it were truely anSmoExceptionor a class deriving fromSmoException. Hopefully that sentence isn't as confusing to read as it was to type!Further reading on exceptions and exception handling:
http://msdn.microsoft.com/en-us/library/ms173160(v=vs.80).aspx
Documentation doesn't say what exceptions are thrown:
http://msdn.microsoft.com/en-us/library/microsoft.sqlserver.management.smo.transfer.transferdata.aspx