DataGridView的组合框柱：从下拉列表中选择后更改单元格的值？

问题描述

我已经设置为我的DataGridView一个ComboBoxColumn和枚举设置其可选值。这主要是工程，我会与下面的异常喜欢。

I have setup a ComboBoxColumn for my DataGridView and set its selectable values from an enumeration. It mostly works as I would like with the following exception.

每当我点击下拉箭头，然后选择枚举值之一，它仍然是形式的中间状态，则不会触发事件CellValueChanged。我需要关注的另一个单元格或其他控件的事件触发。

Whenever I click the dropdown arrow and then select one of the enum values, it remains in sort of a "intermediate" state where the CellValueChanged event isn't triggered. I need to focus on another cell or another control for the event to fire.

我也有在DataGridView的离开事件的事件处理它通过验证的内容确保无电池是空的。

I also have an event handler for the DataGridView's Leaving event which "validates" the contents by making sure that no cell is empty.

所以，如果我创建一个行并填写所有的细胞，并来到（目前为空白）组合框列，将其更改为一个值，然后点击运行按钮;我的错误对话框弹出，因为组合框的选择不是救。

So, if I create a row and fill all the cells and come to the (currently blank) ComboBox column, change it to a value, and then click a Run button; my error dialog pops up because the ComboBox selection wasn't "saved".

我怎样才能解决这个问题？有没有一种方法，我从下拉菜单中选择一个值后，它会自动设置值？

How can I get around this? Is there a way that after I select a value from the drop down it automatically "sets" the value?

谢谢！

推荐答案

您应该使用 CurrentCellDirtyStateChanged 事件并强制对电网提交编辑：

You should use CurrentCellDirtyStateChanged event and force a commit edit on the grid:

    private void dataGridView1_CurrentCellDirtyStateChanged(object sender, EventArgs e)
    {
        dataGridView1.CommitEdit(DataGridViewDataErrorContexts.Commit);
    }

希望它帮助！

Hope it helps!

这篇关于DataGridView的组合框柱：从下拉列表中选择后更改单元格的值？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！