数据交换器无需打开 d接线?
原文：DataAdapter does not need to make db connection open?

我试图在C#.net使用数据Adapter,我仍然不了解有关数据Adapter的内容。

C# 表Adapter and DataSet Update with multi table
原文：C# TableAdapter and DataSet update with multiple table

I m new in C# and I need some help.