如何在DataGridView组合框中使用选定的索引更改事件 [英] how to use selected index change event in DataGridView combobox

问题描述

如何在DataGridView组合框中使用选定的索引更改事件

how to use selected index change event in DataGridView combobox

推荐答案

您需要为datagridview处理两个事件

在datagridview的EditingControlShowing中，并在事件处理程序中附加事件处理程序，以更改组合框的selectedIndex

You need to handle two events for the datagridview

EditingControlShowing of the datagridview and in the eventhandler attach the eventhandler for selectedindexchanged of the combobox

this.dataGridView1.EditingControlShowing += new DataGridViewEditingControlShowingEventHandler(OnEditControlShowing);

void OnEditControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
        {
            if (e.Control is ComboBox)
            {
                ((ComboBox)e.Control).SelectedIndexChanged += new EventHandler(OnSelectIndexChanged);
            }
        }

goooooooooooood，但是像这样的代码

goooooooooooood but like this code

if (e.Control is ComboBox)
               {
                   ((ComboBox)e.Control).SelectedIndexChanged += new System.EventHandler(this.onseleteddatagridomboboxevent);
               }

private void onseleteddatagridomboboxevent(object sender, EventArgs e)
        {

                try
                {
                    string test = grd_setter.Rows[0].Cells["c2"].Value.ToString();
                         DataTable dt = pDAL.Get_Data("select  Date from tbl_packet where PNo='" + test.ToString() + "'");
                          d = dt.Rows[0][0].ToString();
                          grd_setter.Rows[0].Cells["c3"].Value = d.ToString();
                }
                catch { }
        }

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