private MenuItem createMenuItemGroupShowHideColumns(DataTable dataTable)
{
var menuItemGroupColumns = new MenuItem("Show/Hide Columns");
var dataColumns = dataTable.Columns;
for (int j = 0; j < dataColumns.Count; j++)
{
var menuItem = new MenuItem(dataColumns[j].ColumnName);
menuItem.Checked = GridView.Columns[dataColumns[j].ColumnName].Visible;
menuItem.Click += toggleColumnVisibility;
menuItem.Tag = new MenuItemMetadata(MenuItemActionType.ColumnHeaderVisibility);
menuItemGroupColumns.MenuItems.Add(menuItem);
}
_menuItemToggleVisibilityAllColumns = new MenuItem("Toggle column visibility");
_menuItemToggleVisibilityAllColumns.Click += menuItemToggleVisibilityAllColumns_Click;
_menuItemShowAllColumns = new MenuItem("Show all");
_menuItemShowAllColumns.Click += showAllColumns_Click;
_menuItemShowAllColumns.Enabled = !GridView.AllColumnsShown();
menuItemGroupColumns.MenuItems.AddRange(new MenuItem[] { _separator,
_menuItemShowAllColumns,
_menuItemToggleVisibilityAllColumns });
return(menuItemGroupColumns);
}