如何在wpf中保存较新的数据网格的旧值. [英] How to save the older value of data grid following with newer one in wpf.

问题描述

嗨
我是WPF的新手，正在使用数据网格.在一个按钮旁边有一个添加的展览品，通过该展览品，人们可以通过其本地计算机输入值.

一切正常，但是出现了问题，因为当我用来将新值馈送到网格时，前一个丢失了，而新值代替了旧值.

我希望较旧的值应保持在较新的值之后.

请有人帮帮我.

解决方案

除了将新值分配给数据网格外，您还可以执行以下操作:
1.获取数据网格的当前内容
2.将获取的内容添加到新值
3.将更新的值分配给数据网格

现在，您将在数据网格中获得旧值和新值

Hi
I am new in WPF and I''m using a data grid. Beside one button there is add exhibit through which one can feed the value through their local machine.

All working fine but the problem arises as when I use to feed the new value to the grid, the previous one is lost and the new value comes in place of the older one.

I want that the older value should remain following the newer one.

Please someone help me out.

解决方案

Instead of assigning the new value to data grid, you can do the following:
1. Fetch the current content of data grid
2. Add the fetched content to the new value
3. Assign the updated value to data grid

Now, you will have the old + new value in data grid

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