كد بايد به اين شكل باشه
ds3.Clear();
expandablePanel3.Enabled = true;
da3= new SqlDataAdapter("select * from noaashoghl " , con);
ds3.Clear();
da3.Fill(ds3,"noaashoghl");
//Column7 is Combo box
//Fill Combo Box
Column7.DataSource = ds3.Tables["noaashoghl"];
Column7.DisplayMember= "vazeeatshoghl";
Column7.ValueMember = "id";
da3= new SqlDataAdapter("select * from shoghl where id=" + dataGridViewX1.Rows[dataGridViewX1.CurrentRow.Index].Cells[0].Value.ToString() + "", con);//ريختن اطلاعات در گريد
da3.Fill(ds3,"shoghl");
//Fill DataGirid
bs3.DataSource =ds3.Tables["shoghl"];
dataGridViewX3.Focus();
dataGridViewX3.AutoGenerateColumns = false;
dataGridViewX3.DataSource = bs3;