private void btnAdd_Click(object sender, EventArgs e) { Tafe_DataTier dt = new Tafe_DataTier(); if (this.validateData()) { try { int rowsInserted = dt.insertCourse(txtID.Text, txtName.Text, Decimal.Parse(txtCost.Text)); if (rowsInserted > 0) { MessageBox.Show("New Course Information Saved", "Add Course", MessageBoxButtons.OK, MessageBoxIcon.Information); } else { MessageBox.Show("New Course Information NOT Saved", "Add Course", MessageBoxButtons.OK, MessageBoxIcon.Error); } } catch (Exception ex) { MessageBox.Show(ex.Message, "ERROR"); } } }