Datagridview实时计算 [英] Datagridview Real-Time Calculation

问题描述

嗨大家好！

需要帮助：



名称------单位-------价值

Kappa ------ kg ---------- 1

Delta ------- m ----- ------ 2

Alpha ------- mm -------- 3



现在，我想在datagridview上编辑Value，每当我输入一个数字时，我想自动计算其他值。我怎样才能做到这一点？需要帮助！

Hi Guys!
Need help with this:

Name------Unit-------Value
Kappa------kg----------1
Delta-------m-----------2
Alpha-------mm--------3

Now, I want to edit the Value on the datagridview, and everytime I enter a number I want to automatically calculated the other values. How can I do this? Need HELP!

推荐答案

您需要在绑定到此网格的集合中处理此问题，遵循以下准则：



- 创建一个A类来保存一行的数据，并在其上实现INotifyPropertyChanged

- 创建另一个具有A对象集合作为属性的类

- 创建A类的每个实例，订阅它的PropertyChanged事件，并添加到集合中

- 重新计算值并更新PropertyChanged事件处理程序中集合中的项目

- 实现INotifyPropertyChanged时应确保在将集合绑定到网格时自动刷新网格。

You need to take care of this in the collection that is bound to this grid, following these guidelines:

- Create a class A to hold the data for one row, and implement INotifyPropertyChanged on it
- Create another class that has the collection of A objects as a property
- Create each instance of class A, subscribe to the PropertyChanged event of it, and add to the collection
- Recalculate the values and update the items in the collection in your PropertyChanged event handler
- Implementing INotifyPropertyChanged should make sure that your grid is refreshed automatically when you bind the collection to it.

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