update is not working

my coder under update button

 ClassInfo infoclass = new ClassInfo();
                 infoclass.classId = decclassId;
                 infoclass.className = txtclassName.Text;
                 infoclass.noOfSeats = decimal.Parse(txtNoofSeats.Text);
          
                 ClassSp spclass = new ClassSp();
                 spclass.classEdit(infoclass);
                 btnsave.Text = "SAVE";
                 gridfill();
                 clear();