private void button2_Click(object sender, EventArgs e)
{
this.Hide();
WelcomeWindow w = new WelcomeWindow(ID);
w.Show();
}
private void loginButton_Click(object sender, EventArgs e)
{
//Initiating SQL Connection:
SqlConnection con = new SqlConnection("data source = DESKTOP-QPUU33H;" +
"database = Library;" +
"integrated security = true");
SqlDataAdapter sda = new SqlDataAdapter("Select * from UserLogin where UserID ='" + getId.Text.ToString() + "'and Password ='******'", con);
DataTable DT = new DataTable();
sda.Fill(DT);
if (DT.Rows.Count > 0)
{
WelcomeWindow firstWindow = new WelcomeWindow(getId.Text.ToString());
firstWindow.Show();
this.Hide();
}
else
{
MessageBox.Show("Invalid user name and password.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}