۰۴-۱۵-۱۳۹۳، ۰۴:۱۹ ب.ظ
میخوام سه تا لایه خطی رو باهم یونیون کنم ارور زیر و میده
one or more dropped items were invalid and will not to added to the control
one or more dropped items were invalid and will not to added to the control