private void button2_Click(object sender, EventArgs e)
{
if (textBox2.Text == "")
{
MessageBox.Show("Enter valid data", "Info", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
DialogResult k = MessageBox.Show("Are you sure want to delete?", "Confirmation", MessageBoxButtons.OKCancel, MessageBoxIcon.Asterisk);
if (k == DialogResult.OK)
{
af.Dismiss(Convert.ToInt32(textBox2.Text));
}
}
}