C#加一个开关，开启后可以在 DEV GridControl 的单元格直接修改数据

可以通过以下步骤实现在 DEV GridControl 的单元格直接修改数据：

1. 在 DEV GridControl 上添加一个开关控件（Switch）。
2. 通过开关控件的 CheckedChanged 事件，判断开关状态并设置 DEV GridControl 的 EditMode 属性。
3. 如果开关是打开状态，则设置 EditMode 为 EditOnEnter，这样当用户单击单元格时就可以直接修改数据。
4. 如果开关是关闭状态，则将 EditMode 设置为 EditProgrammatically，这样用户就不能直接在单元格中修改数据了。

以下是示例代码：

private void switchEditMode_CheckedChanged(object sender, EventArgs e)
{
    if (switchEditMode.Checked)
    {
        // 打开编辑模式
        gridView1.OptionsBehavior.Editable = true;
        gridView1.OptionsBehavior.EditorShowMode = DevExpress.Utils.EditorShowMode.Click;
        gridView1.OptionsBehavior.EditorShowMode2 = DevExpress.Utils.EditorShowMode.Click;
        gridView1.OptionsBehavior.AutoPopulateColumns = true;
        gridView1.OptionsView.NewItemRowPosition = DevExpress.XtraGrid.Views.Grid.NewItemRowPosition.Bottom;
        gridView1.OptionsEditForm.ShowOnDoubleClick = DevExpress.Utils.DefaultBoolean.True;
        gridView1.OptionsEditForm.ShowOnEnterKey = DevExpress.Utils.DefaultBoolean.True;
        gridView1.OptionsEditForm.ShowOnF2Key = DevExpress.Utils.DefaultBoolean.True;
        gridView1.OptionsEditForm.PopupEditFormWidth = 500;
        gridView1.OptionsSelection.MultiSelect = true;
        gridView1.OptionsSelection.MultiSelectMode = DevExpress.XtraGrid.Views.Grid.GridMultiSelectMode.CellSelect;
        gridView1.OptionsView.ShowFooter = true;
        gridView1.OptionsView.GroupFooterShowMode = DevExpress.XtraGrid.Views.Grid.GroupFooterShowMode.VisibleAlways;
        gridView1.OptionsView.ShowAutoFilterRow = true;
        gridView1.OptionsView.ShowFilterPanelMode = DevExpress.XtraGrid.Views.Base.ShowFilterPanelMode.ShowAlways;
        gridView1.OptionsView.ShowGroupPanel = true;
        gridView1.OptionsView.ShowIndicator = true;
        gridView1.OptionsView.EnableAppearanceEvenRow = true;
        gridView1.OptionsView.EnableAppearanceOddRow = true;
        gridView1.OptionsView.ColumnAutoWidth = false;
        gridView1.OptionsView.RowAutoHeight = true;
        gridView1.OptionsView.HeaderFilterButtonShowMode = DevExpress.XtraEditors.Controls.FilterButtonShowMode.Button;
        gridView1.OptionsBehavior.AllowIncrementalSearch = true;
        gridView1.OptionsFind.AlwaysVisible = true;
        gridView1.OptionsFind.FindMode = DevExpress.XtraEditors.FindMode.Always;
    }
    else
    {
        // 关闭编辑模式
        gridView1.OptionsBehavior.Editable = false;
        gridView1.OptionsBehavior.EditorShowMode = DevExpress.Utils.EditorShowMode.Default;
        gridView1.OptionsBehavior.EditorShowMode2 = DevExpress.Utils.EditorShowMode.Default;
        gridView1.OptionsBehavior.AutoPopulateColumns = false;
        gridView1.OptionsView.NewItemRowPosition = DevExpress.XtraGrid.Views.Grid.NewItemRowPosition.None;
        gridView1.OptionsEditForm.ShowOnDoubleClick = DevExpress.Utils.DefaultBoolean.False;
        gridView1.OptionsEditForm.ShowOnEnterKey = DevExpress.Utils.DefaultBoolean.False;
        gridView1.OptionsEditForm.ShowOnF2Key = DevExpress.Utils.DefaultBoolean.False;
        gridView1.OptionsSelection.MultiSelect = false;
        gridView1.OptionsView.ShowFooter = false;
        gridView1.OptionsView.GroupFooterShowMode = DevExpress.XtraGrid.Views.Grid.GroupFooterShowMode.Hidden;
        gridView1.OptionsView.ShowAutoFilterRow = false;
        gridView1.OptionsView.ShowFilterPanelMode = DevExpress.XtraGrid.Views.Base.ShowFilterPanelMode.Never;
        gridView1.OptionsView.ShowGroupPanel = false;
        gridView1.OptionsView.ShowIndicator = false;
        gridView1.OptionsView.EnableAppearanceEvenRow = false;
        gridView1.OptionsView.EnableAppearanceOddRow = false;
        gridView1.OptionsView.ColumnAutoWidth = true;
        gridView1.OptionsView.RowAutoHeight = false;
        gridView1.OptionsView.HeaderFilterButtonShowMode = DevExpress.XtraEditors.Controls.FilterButtonShowMode.Default;
        gridView1.OptionsBehavior.AllowIncrementalSearch = false;
        gridView1.OptionsFind.AlwaysVisible = false;
        gridView1.OptionsFind.FindMode = DevExpress.XtraEditors.FindMode.FindClick;
    }
}