private void btnLog_Click(object sender, EventArgs e) { try { userName = txtUser.Text; // Gets the Username from Text Box password = txtPass.Text; // Gets Password from Text box if (userName.Equals("")) { MessageBox.Show("Please enter Username"); } else { if (password.Equals("")) { MessageBox.Show("Please enter Password"); } else { try// runs through the code unless exception is thrown { CheckExisting(); if (found == false) { MessageBox.Show("Cannot find user is system, please check username or register account"); } else { if (found == true) { CheckValid(); if (checkValid == true) { frmMenu mnu = new frmMenu(); this.Hide(); mnu.Show(); } else { MessageBox.Show("Invalid password entered. Please Try Again"); } } } } catch (IOException ex) { MessageBox.Show(ex.Message + "\n" + ex.StackTrace); } catch (ArgumentOutOfRangeException ex) { MessageBox.Show(ex.Message + "\n" + ex.StackTrace); } catch (Exception ex) { MessageBox.Show(ex.Message + "\n" + ex.StackTrace); } } } } catch (Exception ex) { MessageBox.Show("Error Cannot Login: " + ex.Message); // Shows an error message } }