private void courseAddButton_Click(object sender, EventArgs e) { addTeacherObj = new AddTeacherClass(); addTeacherObj.TeacherId = teacherIdTextBox.Text; addTeacherObj.TeacherName = teacherNameTextBox.Text; addTeacherObj.TeacherDesign = designationTextBox.Text; addTeacherObj.DeptName = dNameComboBox.Text; addTeacherObj.Password = passwordTextBox.Text; if ((teacherIdTextBox.Text == "") || (teacherNameTextBox.Text == "") || (designationTextBox.Text == "") || (dNameComboBox.Text == "") || (passwordTextBox.Text == "")) { MessageBox.Show("Please Fill-Up all field"); this.Update(); } else { gateways = new Gateway(); if (gateways.InserIntoTeacherInfoTable(addTeacherObj) == 1) { MessageBox.Show("Information Added Successfully!!!"); teacherResetButton_Click(sender, e); } else { MessageBox.Show("Already Added \"" + teacherNameTextBox.Text + "\""); } } }