private string InputErrorCheck() { string errorString = ""; switch (this.cuUserPageType) { case CommonDef.CuUserPageType.New: errorString += ErrorController.IsNull(NewUser.Email, "Email"); errorString += ErrorController.IsEmail(NewUser.Email, "Email"); errorString += ErrorController.IsNull(NewUser.PUserName, "ユーザ名"); errorString += ErrorController.IsNull(Password, "パスワード(新)"); errorString += ErrorController.IsNull(ConfirmationPassword, "パスワード(確認用)"); errorString += ErrorController.ConrfirmPassword(Password, ConfirmationPassword, "パスワード"); break; case CommonDef.CuUserPageType.Change: errorString += ErrorController.IsNull(NewUser.PUserName, "ユーザ名"); break; case CommonDef.CuUserPageType.ChangePassword: errorString += ErrorController.IsNull(OldPassword, "パスワード(旧)"); errorString += ErrorController.IsNull(Password, "パスワード(新)"); errorString += ErrorController.IsNull(ConfirmationPassword, "パスワード(確認用)"); errorString += ErrorController.ConrfirmPassword(Password, ConfirmationPassword, "パスワード"); break; default: break; } return(errorString); }