在运行时向网格添加新行时数据消失 [英] Data disappears on adding a new row to the grid at run time

问题描述

我有一个网格视图.我还有一个向GridView添加行"按钮.现在假设，我已经选择了第一行下拉列表中存在的数据，并且当我单击``将行添加到GridView''时，另一行被添加到了网格中，但是在第一行中选择的数据消失了. br/>
请帮忙.

I have a grid view. I also have a ''Add Row to GridView'' button. Now suppose, I have selected data present in the drop down list in the first row and when I click on the ''Add Row to GridView'', another row gets added to the grid but the data selected in the first row disappears.

Please help.

推荐答案

您必须编写SetPreviousData方法来解决此问题，因为在单击按钮时会发生自动回发，因此您之前选择的数据将消失.

You have to write SetPreviousData method to solve this issue, because on button click autopost back will happen so , the data which you selected before will go off.

我在这里使用了两个网格视图，例如A和B.
我显示的是用户网格视图A，而不是网格视图B.
我要做的是每当添加新行时，都将网格视图A的内容放到网格视图B中，当添加该行时，网格视图B的内容显示在A中.

这可能不是最好的处理方法，但它可以工作.另外，我们正在使用EDMX从数据库中获取数据

I have used two grid views here, say A and B.
I am showing the user grid view A and not grid view B.
What I am doing is whenever I add a new row, I am putting the contents of grid view A to grid view B and when the row gets added, the contents of grid view B are shown in A.

This might not be the best method of doing things but it works. Also, we are using EDMX to get data from database

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