THANK YOU TO SO MUCH TO SOLVE THAT ERROR
please tell me one more thing
how can i get the dropdown id to compare with sql id
UPDATE SHOWNAME SET SH_NAME='ccc' WHERE SH_ID='2'
UPDATE SHOWNAME SET SH_NAME='" & fixQuotes(ddltype.SelectedItem.Text) & "' WHERE SH_ID='" & item.Cells(0).Text & "'