Windows 窗体上 DataGridView 行内的 VB.NET 控件 [英] VB.NET Controls inside of a DataGridView Row on a Windows Form

问题描述

我在 Windows 窗体上的 DataGridView 行的单元格内有一个 ComboBox.我需要发生以下情况:

I have a ComboBox inside of a cell of a DataGridView Row on a Windows form. I need the following to happen:

1. 点击组合框
2. 选择一个值
3. 重新计算总数 &显示在坐着的标签内在 DataGridView 之外.

目前正在发生以下情况:

Currently, the following is happening:

1. 点击组合框
2. 再次单击以打开 CB 的下拉列表
3. 选择一个值
4. 在单元格外单击以强制重新计算外部标签.

首先，我想避免必须单击组合键两次(一次设置焦点，一次选择值).其次，我希望在选择一个值后进行实时重新计算.

I want to avoid, first, having to click the combo twice (once to set focus, and again to select the value). Second, I'd like for a live recalculation to happen after selecting a value.

有没有人有解决这些问题的一两个技巧?

Does anyone have a trick or two to solve any of these?

我在 DGV 上尝试了大部分活动，但运气不佳.

I've tried most of the events on the DGV without much luck.

推荐答案

为 DataGridView 的 CellClick 事件添加一个处理程序，看起来有点像:

Add a handler to the CellClick event of the DataGridView that looks a bit like:

private void vehicleTypeGridView_CellClick(object sender, DataGridViewCellEventArgs e)
{
    if ( e.RowIndex == - 1 ) return; //Header Cell clicked -> ignore it.
    vehicleTypeGridView.BeginEdit ( true );
    var control = vehicleTypeGridView.EditingControl as DataGridViewComboBoxEditingControl;
    if ( control != null ) control.DroppedDown = true;
}

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