在网上查看SqlDataAdaptor更新方法



iirc，鉴于你的代码，它看起来像

Have a look on the net for SqlDataAdaptor Update method

iirc, given your code, it would look like

sda.Update(dt);

但我不确定你还需要做什么，即前提条件

but Im not sure what else you would need to do ie pre-conditions