Question

经过长时间在网上搜索我的问题后，我问了一个问题......

我在2个第一列中有一个DataGridView和DataGridViewComboBoxColumn。当我手动手动最后一行的第一列的值时，如果需要，我会在最后一行之后添加一个新的空白行。

当我手动更改第二列的值时，我会更改下一列的类型（文本或组合）并填充DataGridViewComboBoxCell。

这两点与EditingControlShowing事件完美配合，可以激发其他事件。我使用这个事件whitch是唯一一个将ComboBox作为e.Control返回。

我的问题是当我想以编程方式填充col 1＆amp;的值时第2列，EditingControlShowing事件不会按原样触发。

我尝试使用BeginEdit属性，使用EditMode = EditProgrammatically属性，但没有更多成功。

这是我的代码的一部分（这不是项目，而是样本的一部分，如果需要我可以发送更多）：

    private void btnFill_Click(object sender, EventArgs e)
    {
        List<string[]> sFilters = new List<string[]>();
        string[] filter1 = { "col3", "NOT IN" };
        string[] filter2 = { "col5", "BETWEEN" };
        sFilters.Add(filter1);
        sFilters.Add(filter2);

        iRow = -1;

        foreach (var sVar in sFilters)
        {
            iRow++;
            try
            {
                iCol = 0;
                dataGridView1.CurrentCell = dataGridView1.Rows[iRow].Cells[iCol];
                dataGridView1.BeginEdit(true);
                dataGridView1.CurrentCell.Value = sVar[0];
                //dataGridView1.EndEdit();
            }
            catch (Exception Ex)
            {
                MessageBox.Show("btnFill_Click - iCol=0 - iRow=" + iRow.ToString() + " :\n\n" + Ex.Message);
            }

            try
            {
                iCol = 1;
                dataGridView1.CurrentCell = dataGridView1.Rows[iRow].Cells[iCol];
                //dataGridView1.BeginEdit(true);
                dataGridView1.CurrentCell.Value = sVar[1];
                //dataGridView1.EndEdit();
            }
            catch (Exception Ex)
            {
                MessageBox.Show("btnFill_Click - iCol=1 - iRow=" + iRow.ToString() + " :\n\n" + Ex.Message);
            }
        }
    }

    private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
    {
        iCol = ((DataGridView)(sender)).CurrentCell.ColumnIndex;
        iRow = ((DataGridView)(sender)).CurrentCell.RowIndex;

        if (iCol == 0)
        {
            try
            {
                // Déclenchement d'un évènement quand 'cboVar' change
                ComboBox combo = e.Control as ComboBox;
                if (combo != null)
                {
                    // first remove event handler to keep from attaching multiple
                    combo.SelectedIndexChanged -= new EventHandler(dataGridView1_cboVar_SelectedIndexChanged);
                    // now attach the event handler
                    combo.SelectedIndexChanged += new EventHandler(dataGridView1_cboVar_SelectedIndexChanged);
                }
                ((DataGridView)sender).ClearSelection();
            }
            catch (Exception Ex)
            {
                MessageBox.Show("EditingControlShowing() - Col0 :\n\n" + Ex.Message);
            }
        }
        else if (iCol == 1)
        {
            try
            {
                ComboBox combo = e.Control as ComboBox;
                if (combo != null)
                {
                    // first remove event handler to keep from attaching multiple
                    combo.SelectedIndexChanged -= new EventHandler(dataGridView1_cboOpe_SelectedIndexChanged);
                    // now attach the event handler
                    combo.SelectedIndexChanged += new EventHandler(dataGridView1_cboOpe_SelectedIndexChanged);
                }
            }
            catch (Exception Ex)
            {
                MessageBox.Show("EditingControlShowing() - Col1 :\n\n" + Ex.Message);
            }
        }
    }

    private void dataGridView1_cboVar_SelectedIndexChanged(object sender, EventArgs e)
    {
        try
        {
            comboVar = sender as ComboBox;
            if (iCol == 0)
            {
                if (comboVar.SelectedIndex > 0)
                {
                    if (iRow == dataGridView1.RowCount - 1)
                        dataGridView1.Rows.Add();
                }
                comboVar.SelectedIndexChanged -= new EventHandler(dataGridView1_cboVar_SelectedIndexChanged);
            }
        }
        catch (Exception Ex)
        {
            MessageBox.Show("dataGridView1_cboVar_SelectedIndexChanged() :\n\n" + Ex.Message);
        }
    }

我希望我能清楚地知道......

非常感谢你的帮助，对不起我的英语不好......

的Herve

DataGridView EditingControlShowing不会触发

0 个答案: