private void ImageButton1_Click (object sender, System.Web.UI.ImageClickEventArgs e) {if (ListBox1.Visible == false) {SqlClass1 sqlc = new SqlClass1 (); dr1 = sqlc.ReaderSql ( "select * from siji"); ListBox1 .Datasource = DR1; ListBox1.DataTextField = "sj_name"; listbox1.datavaluefield = "sj_id"; listbox1.database (); listbox1.visible = true;} else {listbox1.visible = false;}}
