public void Save()
{
ValidationErrors.Clear();
ValidationOnSaving = true;
OnPropertyChanged(string.Empty);
if (!HasError)
{
Entity.Save();
DeleteCommand.RaiseCanExecuteChanged();
OnPropertyChanged("PageTitle");
}
OnPropertyChanged(string.Empty);
ValidationOnSaving = false;
}
/// <summary>
/// Logins this instance.
/// </summary>
/// <returns></returns>
public async Task Login()
{
if (ValidationErrors != null)
{
ValidationErrors.Clear();
}
ValidateModel(_validator, this);
if (IsModelValid)
{
IsLoading = true;
//string username = "******";
//string password = "******";
//bool success = await _auth.Login(username, password, "");
bool success = await _auth.Login(EmailAddress, Password);
if (success)
{
ShowViewModel <NavigationViewModel>();
}
else
{
Mvx.Resolve <IUserInteraction>().ToastErrorAlert(LanguageResolver.LoginErrorTitle, duration: 3000);
}
IsLoading = false;
}
else
{
string errorMsg = string.Empty;
if (ValidationErrors != null && ValidationErrors.Count > 0)
{
errorMsg = ValidationErrors.First().ErrorMessage;
}
else
{
errorMsg = "An error has occurred.";
}
Mvx.Resolve <IUserInteraction>().ToastErrorAlert(errorMsg);
}
}
// Methods
//
public bool Validate(PickListModel entity)
{
//
// TODO: put in the BLL class?
//
ValidationErrors.Clear();
/*
* if (entity.ID <= 0)
* {
* ValidationErrors.Add(new KeyValuePair<string, string>("ID", "ID must be > 0"));
* }
* else if (entity.ID > 100)
* {
* ValidationErrors.Add(new KeyValuePair<string, string>("ID", "ID must be less than 100"));
* }
*/
return(ValidationErrors.Count == 0);
}
public async Task AddCommandHandler()
{
ValidationErrors?.Clear();
ValidateModel(_validator, this);
if (IsModelValid)
{
IsLoading = true;
bool success = true; //await _dataService.SaveCustomer(_customer);
if (success)
{
ShowViewModel <ProviderSearchViewModel>();
}
else
{
await
Mvx.Resolve <IUserInteraction>()
.AlertAsync(LanguageResolver.SearchErrorTitle, "No Customers Found");
}
IsLoading = false;
}
else
{
string errorMsg = string.Empty;
if (ValidationErrors != null && ValidationErrors.Count > 0)
{
errorMsg = ValidationErrors.First().ErrorMessage;
}
else
{
errorMsg = "An error has occurred.";
}
Mvx.Resolve <IUserInteraction>().ToastErrorAlert(errorMsg);
}
}
/// <summary>
/// Validate() is used to validate business rules on the business object.
/// Validates both EF entity validation rules on pending changes as well
/// as any custom validation rules you implement in the OnValidate() method.
///
/// Do not override this method for custom Validation(). Instead override
/// OnValidate() or add error entries to the ValidationErrors collection.
/// <remarks>
/// If the AutoValidate flag is set to true causes Save()
/// to automatically call this method. Must be overridden to perform any
/// validation.
/// </remarks>
/// <seealso>Class wwBusiness Class ValidationErrorCollection</seealso>
/// </summary>
/// <param name="entity">Optional entity to validate. Defaults to this.Entity</param>
/// <param name="clearValidationErrors">If true clears all validation errors before processing rules</param>
/// <returns>True or False.</returns>
public bool Validate(TEntity entity = null, bool clearValidationErrors = false)
{
if (clearValidationErrors)
{
ValidationErrors.Clear();
}
if (entity == null)
{
entity = Entity;
}
// No entity - no validation errors
if (entity == null)
{
return(true);
}
var validationErrors = Context.GetValidationErrors();
// First check for model validation errors
foreach (var entry in validationErrors)
{
foreach (var error in entry.ValidationErrors)
{
ValidationErrors.Add(error.ErrorMessage, error.PropertyName);
}
}
// call business object level validation errors
OnValidate(entity);
if (ValidationErrors.Count > 0)
{
SetError(ValidationErrors.ToString());
return(false);
}
return(true);
}
/// <summary>
/// Searches the command handler.
/// </summary>
/// <returns></returns>
public async Task SearchCommandHandler()
{
ValidationErrors?.Clear();
ValidateModel(_validator, this);
if (IsModelValid)
{
IsLoading = true;
var applications = await _dataService.FindApplications(SearchText);
if (applications != null && applications.Count > 0)
{
ShowViewModel <SentListViewModel>(applications);
}
else
{
await Mvx.Resolve <IUserInteraction>().AlertAsync(LanguageResolver.SearchErrorTitle, "No Customers Found");
}
IsLoading = false;
}
else
{
string errorMsg = string.Empty;
if (ValidationErrors != null && ValidationErrors.Count > 0)
{
errorMsg = ValidationErrors.First().ErrorMessage;
}
else
{
errorMsg = "An error has occurred.";
}
Mvx.Resolve <IUserInteraction>().ToastErrorAlert(errorMsg);
}
}
public bool Validate(User user, bool isNewUser = false)
{
ValidationErrors.Clear();
if (isNewUser)
{
if (Context.Users.Any(usr => usr.Username == user.Username))
{
ValidationErrors.Add("Email address is already in use.");
}
}
if (string.IsNullOrEmpty(user.Username))
{
ValidationErrors.Add("Email address can't be empty.");
}
if (string.IsNullOrEmpty(user.Fullname))
{
ValidationErrors.Add("Full name can't be empty.");
}
if (string.IsNullOrEmpty(user.Password))
{
ValidationErrors.Add("Password can't be empty.");
}
else
{
// always force password to be updated and hashed even if it was entered as plain text
user.Password = HashPassword(user.Password, user.Id.ToString());
}
if (ValidationErrors.Count > 0)
{
ErrorMessage = ValidationErrors.ToString();
return(false);
}
return(true);
}
public bool Delete(SqlTransaction trans, SqlConnection conn)
{
ValidationErrors.Clear();
if (IsDeleted)
{
return(true);
}
DataField idField = IdentityField;
if (idField == null)
{
ValidationErrors.Add("Record does not exist");
return(false);
}
if (conn == null)
{
conn = new SqlConnection(SQLDMGlobal.ConnectionString());
}
if (conn.State != ConnectionState.Open)
{
conn.Open();
}
SqlCommand cmd = conn.CreateCommand();
bool TransactionExists = true;
if (trans == null)
{
TransactionExists = false;
trans = conn.BeginTransaction();
}
cmd.Transaction = trans;
try
{
foreach (DataRecord r in ChildRecords)
{
if (!r.Delete(trans, conn))
{
ValidationErrors.AddRange(r.ValidationErrors);
throw new DataException("Validation error while saving to " + r.SafeTableName);
}
}
cmd.CommandText = SQLForDelete(idField);
cmd.Parameters.Add(idField);
cmd.ExecuteNonQuery();
cmd.Parameters.Clear();
if (!TransactionExists)
{
trans.Commit();
conn.Close();
}
IsDeleted = true;
Deleted(this);
}
catch (DataException ex)
{
if (!TransactionExists)
{
trans.Rollback();
}
ValidationErrors.Add(ex.Message);
}
return(ValidationErrors.IsValid);
}
protected override bool OnValidate(User user)
{
bool?isNewUser = IsNewEntity(user);
if (isNewUser == null)
{
isNewUser = true;
}
ValidationErrors.Clear();
if (!IsValidDisplayName(user.UserDisplayName))
{
ValidationErrors.Add(
"Invalid display name. Name should contain no spaces contain: only alpha numeric characters and dashes and can't start or end with a dash.", "UserDisplayName");
}
if (Context.Users.Any(usr => usr.Email == user.Email && usr.Id != user.Id))
{
ValidationErrors.Add("Email address is already in use by another user.", "Email");
}
if (Context.Users.Any(usr => usr.UserDisplayName == user.UserDisplayName && usr.Id != user.Id))
{
ValidationErrors.Add("Display name is already in use by another user.", "UserDisplayName");
}
if (string.IsNullOrEmpty(user.Email))
{
ValidationErrors.Add("Email address can't be empty.", "Email");
}
if (!IsValidEmailAddress(user.Email))
{
ValidationErrors.Add("Invalid email format.", "Email");
}
if (string.IsNullOrEmpty(user.UserDisplayName))
{
ValidationErrors.Add("User display name nan't be empty.", "UserDisplayName");
}
if (string.IsNullOrEmpty(user.Password) || user.Password.Length < 5)
{
ValidationErrors.Add("Password should be at least 5 characters long.", "Password");
}
else
{
// always force password to be updated and hashed even if it was entered as plain text
// this method detects if the password is already encoded
user.Password = HashPassword(user.Password, user.Id.ToString());
}
if (ValidationErrors.Count > 0)
{
ErrorMessage = ValidationErrors.ToString();
return(false);
}
return(true);
}
protected override void OnStartProcess()
{
ProductIds.Clear();
ValidationErrors.Clear();
}
public void ResetValidation()
{
Error = false;
ValidationErrors.Clear();
StateHasChanged();
}
