private void button2_Click(object sender, EventArgs e) { FnametextBox4.Clear(); SnametextBox3.Clear(); listBox1.Items.Clear(); FirsttextBox1.Clear(); fnamelabel3.Text = string.Empty; Snamelabel3.Text = string.Empty; SecondtextBox2.Clear(); FnametextBox4.Focus(); FirsttextBox1.Enabled = false; SecondtextBox2.Enabled = false; FnametextBox4.Enabled = true; SnametextBox3.Enabled = true; }
private bool isEmpty() { if (FnametextBox4.Text == string.Empty) { MessageBox.Show("First Name is Required", "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error); FnametextBox4.Focus(); return(false); } if (SnametextBox3.Text == string.Empty) { MessageBox.Show("Second Name is Required", "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error); SnametextBox3.Focus(); return(false); } return(true); }