class index_gui :(table_gui_input -> 'a) -> table_gui_input ->object..end
method private _grab_input : table_gui_inputmethod set_columns : Dbf_sql.SQL_db.column list * Dbf_sql.SQL_db.column list -> unitmethod columns_in_index : Dbf_sql.SQL_db.column listmethod private _cb__ok_button_clicked : unit -> unitmethod private _cb__cancel_button_clicked : unit -> unitmethod start : unit -> unit