小编Yat*_*mar的帖子

我尝试在更新时使用asp.net更新GridView，但我传递了文本框值，但出现上述错误。

Label l1 = g1.Rows[e.RowIndex].FindControl("idlbl") as Label;
TextBox t1 = g1.Rows[e.RowIndex].FindControl("typeText") as TextBox;

string orderType = t1.Text;
string Query = @"update app_order_master set order_amt=" + orderType + " where order_id=" + l1.Text;
MySqlCommand cmd = new MySqlCommand(Query);            
cmd.Connection = sqlconn;
cmd.ExecuteNonQuery();