C#Datagridview与DatagridComboBoxColumn [英] c# Datagridview with DatagridComboBoxColumn

问题描述

在form1上，我有datagridview，在代码中我添加了列类型DataGridComboboxColumn和接下来的3列带有普通文本的内容.

我像这样填充组合框:

Hi,

On form1 I have datagridview, in code i add column type DataGridComboboxColumn and next 3 columns with normal text.

Combobox i fill like this:

foreach (DataRow row in ds.Tables["tbluslugi"].Rows)
        {
            nazwa.Items.Add(row["Nazwa"].ToString());
        }

我使用事件dataGridView1_CurrentCellDirtyStateChanged，当我在组合框中选择某个值后，此事件就是启动.但是，当我想找回所选择的价值时，value = false.值=当我转到下一行时的选定值，在这种情况下，我必须使用事件CellEndEdit，但是当我从组合框中选择某物而没有任何反应时，它看起来很糟糕.

我想要的是?我想要当我选择valuse形式组合框时(不要等待下一行)，它正在数据库中查找此值，取回数据并将其放在此行的空单元格中.



我还有一个问题，如何在datagridcombobox中设置默认项?

I use event dataGridView1_CurrentCellDirtyStateChanged, after when i choose in combobox some value this event is Launch. But when i want get back value what was chosen, value = false. Value = chosen value when i go to next row and i this case i have to use event CellEndEdit but it`s look bad, when i choose somthing from combobox and nothing happend.

What i want? I want when i choose valuse form combobox (don`t wait to go next row) it`s looking in database this value, get back data and put it in empty cells in this row.



I have another quastion, how to make default item in datagridcombobox ?

推荐答案

我想我知道您希望在选择之后更改文本单元格中的值在组合框中.

如果是这种情况，请使用EditingControlShowing事件来设置组合框更改事件.

像这样

I think I understand that you want the values in the text cells to change after a selection is made in the combo box.

If this is the case, use the EditingControlShowing event to setup the combo boxes change event.

Like this

private void dataGridView_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
{
    if(dataGridView.CurrentCell.ColumnIndex == 1)
    {
        ComboBox cmb = (ComboBox)e.Control;
        cmb.SelectedValueChanged += new EventHandler(cmb_SelectedValueChanged);
    }
}

void cmb_SelectedValueChanged(object sender, EventArgs e)
{
    //Update your 3 text fields here
}

希望对您有帮助

Hope this helps

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