private void btnLogin_Click(object sender, EventArgs e) { if (txtUsername.Text == "" || txtPassword.Text == "") { MessageBox.Show("Porfavor escribe un nombre de usuario y contraseña"); return; } try { //Create SqlConnection SqlConnection con = new SqlConnection(cs); SqlCommand cmd = new SqlCommand("Select * from tbl_Login where UserName=@username and Password=@password", con); cmd.Parameters.AddWithValue("@username", txtUsername.Text); cmd.Parameters.AddWithValue("@password", txtPassword.Text); con.Open(); SqlDataAdapter adapt = new SqlDataAdapter(cmd); DataSet ds = new DataSet(); adapt.Fill(ds); con.Close(); int count = ds.Tables[0].Rows.Count; //If count is equal to 1, than show frmMain form if (count == 1) { MessageBox.Show("Login Successful!"); this.Hide(); PaginaPrincipal fm = new PaginaPrincipal(); fm.Show(); } else { MessageBox.Show("Login Failed!"); } } catch (Exception ex) { MessageBox.Show(ex.Message); } }
private void ListadoPersonasPerdidas_FormClosed(object sender, FormClosedEventArgs e) { PaginaPrincipal pgP = new PaginaPrincipal(); pgP.Show(); }
private void Registro_de_personas_FormClosed(object sender, FormClosingEventArgs e) { PaginaPrincipal pgP = new PaginaPrincipal(); pgP.Show(); }