private void HomeMenuToolStripMenuItem_Click(object sender, EventArgs e)
{
homemenufrm homemenufrm = new homemenufrm();
homemenufrm.Show();
this.Close();
}
private void Loginbtn_Click(object sender, EventArgs e)
{
//Database connection and search query for user login credintials.
SqlConnection con = new SqlConnection(@"Data Source=DESKTOP-H7S5UDN\SQLEXPRESS;Initial Catalog=crs;Integrated Security=True;");
SqlDataAdapter sda = new SqlDataAdapter("SELECT * FROM [user] WHERE user_id LIKE '" + user_idTextBox.Text + "' AND password LIKE '" + passwordTextBox.Text + "' COLLATE SQL_Latin1_General_CP1_CS_AS", con);
DataTable dt = new DataTable();
sda.Fill(dt);
if (dt.Rows.Count == 1)
{
Search();
MessageBox.Show("Login successfull", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
//Opens home menu and hides the login form.
this.Visible = false;
homemenufrm homemenu = new homemenufrm();
homemenu.Show();
}
else
{
//Error message for a failed login.
MessageBox.Show("Invalid login, please check username and password.", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
user_idTextBox.Clear();
passwordTextBox.Clear();
user_idTextBox.Focus();
}
con.Close();
}