可以让DataGridView.EndEdit触发CellValidating事件吗？ [英] Can I make DataGridView.EndEdit trigger the CellValidating event?

问题描述

我在WinForms应用程序中使用了DataGridView。我的主要目标是使Enter键不移动到网格中的下一行。我仍然希望输入密钥验证并结束编辑模式。

我发现这个FAQ条目和子类DataGridView来覆盖ProcessDialogKey（）。如果按下的键是Enter，我调用EndEdit（），否则我调用base.ProcessDialogKey（）。

除了CellValidating事件没有被触发，它的效果很好。

目前，我只是在调用EndEdit之前手动调用验证逻辑，但似乎我缺少一些东西。

我想我可以打电话给OnCellValidating，但是我会担心我会失去一些其他的事件。我真正想要的是EndEdit（）的一些风格，就像在禁用添加的网格的最后一行按Enter键一样。

解决方案

在更改CurrentCell之前，CellValidating不会被调用。所以我这样做的方法是改变CurrentCell，然后切换回当前的。

  protected override bool ProcessDialogKey键keyData）
 {
 if（keyData == Keys.Enter）
 {
 DataGridViewCell currentCell = CurrentCell; 
 EndEdit（）; 
 CurrentCell = null; 
 CurrentCell = currentCell; 
返回true; 
} 
 return base.ProcessDialogKey（keyData）; 
} 
  

I'm using a DataGridView in my WinForms application. My main objective is to make the Enter key not move to the next row in the grid. I still want the enter key to validate and end edit mode.

I found this FAQ entry and subclassed DataGridView to override ProcessDialogKey(). If the key pressed is Enter, I call EndEdit(), otherwise I call base.ProcessDialogKey().

It works great, except the CellValidating event isn't fired.

Currently, I'm just manually calling my validation logic before I call EndEdit, but it seems like I'm missing something.

I guess I could call OnCellValidating, but then I'd be worried I'm missing some other event. What I really want is some flavour of EndEdit() that behaves just like pressing enter on the last row of a grid with adding disabled.

解决方案

CellValidating doesn't get called until you change the CurrentCell. So the way I kludged around this was to change the CurrentCell, then switch back to the current one.

    protected override bool ProcessDialogKey(Keys keyData)
    {
        if (keyData == Keys.Enter)
        {
            DataGridViewCell currentCell = CurrentCell;
            EndEdit();
            CurrentCell = null;
            CurrentCell = currentCell;
            return true;
        }
        return base.ProcessDialogKey(keyData);
    }

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