vb.net 刷新数据表的内容以从数据库中获取新数据
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Refreshing the content of the datatable to get new data from database
提问by IT researcher
I want to know how this can be done? I am taking data from the database and through DataAdapter i am updating values in datatable.So now if any new data are entered into database how can i refresh or update the new data to the datatable?
我想知道如何做到这一点？我正在从数据库中获取数据并通过 DataAdapter 我正在更新数据表中的值。所以现在如果有任何新数据输入数据库，我如何刷新或更新新数据到数据表？
回答by Tim Schmelter
The easiest way it to fill the DataTable/DataSetagain. A DataTableis an offline, in-memory representation of your data, so it does not know when the underlying data has changed.
再次填充DataTable/的最简单方法DataSet。ADataTable是数据的离线内存表示，因此它不知道基础数据何时发生更改。
However, you can use the SqlDependency-class. Have a look here.
但是，您可以使用SqlDependency-class。看看这里。
