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(); }