private void button2_Click(object sender, EventArgs e) { string query = "update IssueBooks set lastDate ='" + mydate.AddDays(15) + "' where studentID=" + comboBox1.Text + "and bookID=" + comboBox2.Text; rb.updateMethod(query); MessageBox.Show("Book has been Renewed successfy!!!"); }
private void button1_Click(object sender, EventArgs e) { try { returnBookClass rbc = new returnBookClass(); rbc.updateMethod("insert into payScales(gradeNo,salary) values('" + comboBox1.Text + "','" + Convert.ToInt32(textBox2.Text) + "')"); MessageBox.Show("Pay Scale Inserted!!"); } catch (FormatException) { MessageBox.Show("Enter all values!!"); } }