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在编程时,我注意到 tableadapter 的更新是一个函数并返回一个整数。我想知道,返回值是什么意思?
我在 VB Express 2010 中编程
它返回受更新影响的行数。更多信息在这里:http: //msdn.microsoft.com/en-us/library/bz9tthwx.aspx