static public Result Run(Window parent, Table leftTable, Table rightTable)
{
var dialog = new JoinDialog(leftTable, rightTable) { Owner = parent };
return dialog.ShowDialog() ? dialog.result : null;
}
void Command_Table_Join(JoinDialog.Result result)
{
if (joinTable == null)
throw new Exception("You must first set a join source.");
SetText(Table.Join(GetTable(), joinTable, result.LeftColumns, result.RightColumns, result.JoinType));
}