private void button1_Click(object sender, EventArgs e) { //string cs = ConfigurationManager.ConnectionStrings["dbcs"].ConnectionString; SqlConnection con = new SqlConnection(cs); string query = "select * from login_tbl where username = @user and pass = @pass"; SqlCommand cmd = new SqlCommand(query, con); cmd.Parameters.AddWithValue("@user", loginUsertextBox.Text); cmd.Parameters.AddWithValue("@pass", passwordtextBox.Text); con.Open(); // execute SqlDataReader dr = cmd.ExecuteReader(); // check condition if (dr.HasRows == true) { MessageBox.Show("Login Sucess!"); username = loginUsertextBox.Text; this.Hide(); frmSale MainForm = new frmSale(); MainForm.ShowDialog(); } else { MessageBox.Show("Login Failed!"); } con.Close(); }
private void btnSale_Click(object sender, EventArgs e) { frmSale frm = new frmSale(); frm.TopLevel = false; panel3.Controls.Add(frm); frm.BringToFront(); frm.Show(); }