private void button1_Click(object sender, EventArgs e)
{
string connectionstring = ConfigurationManager.ConnectionStrings["mydb"].ConnectionString;
SqlConnection conn = new SqlConnection(connectionstring);
SqlCommand cmd = new SqlCommand("select * from login where NicNo= '" + nicMaskedTextBox1.Text + "'", conn);
SqlDataAdapter adapter = new SqlDataAdapter(cmd);
adapter.Fill(ds);
int i = ds.Tables[0].Rows.Count;
if (i > 0)
{
MessageBox.Show("card h ");
this.Close();
loginForm lf = new loginForm();
lf.Show();
}
else
{
MessageBox.Show(nicMaskedTextBox1.Text + " NicNo is Not Exists.\nPlease Enter Correct NicNo ", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
nicMaskedTextBox1.Clear();
nicMaskedTextBox1.Focus();
}
}
