private void ValidateProperty(IPropertyMetadata property)
{
var context = new ValidationContext(Entity, _serviceProvider, null)
{
MemberName = property.PropertyName
};
var results = new List <ValidationResult>();
try
{
// even though this says Try, and therefore it should not throw an error, IT DOES when a given property is not part of Entity
Validator.TryValidateProperty(property.Getter(Entity), context, results);
}
catch
{
}
foreach (var result in DataProviders.Where(p => p.Property == property).SelectMany(p => p.Validate(Entity, _serviceProvider)))
{
results.Add(result);
}
var state = GetPropertyState(property);
state.ClearMessages();
state.WasValidated = true;
foreach (var result in results)
{
state.AddMessage(result.ErrorMessage);
}
OnValidationStateChanged?.Invoke(this, new ValidationStateChangedEventArgs(isValid: !HasValidationMessages()));
}
private void ValidateModel()
{
var context = new ValidationContext(Entity, _serviceProvider, null);
var results = new List <ValidationResult>();
try
{
// even though this says Try, and therefore it should not throw an error, IT DOES when a given property is not part of Entity
Validator.TryValidateObject(Entity, context, results, true);
}
catch
{
}
ClearAllFieldStates();
_fieldStates
.Where(kv => kv.Value.IsBusy)
.ForEach(kv => results.Add(new ValidationResult(
$"The {kv.Key.PropertyName} field indicates it is performing an asynchronous task which must be awaited.",
new[] { kv.Key.PropertyName })));
foreach (var result in DataProviders.SelectMany(p => p.Validate(Entity, _serviceProvider)))
{
results.Add(result);
}
foreach (var result in results)
{
if (!result.MemberNames.Any())
{
throw new InvalidOperationException("Only validators which explicitly specify which member is invalid should be used.");
}
result.MemberNames.ForEach(name => GetFieldState(name)?.AddMessage(result.ErrorMessage));
}
_fieldStates.ForEach(kv => kv.Value.WasValidated = true);
OnValidationStateChanged?.Invoke(this, new ValidationStateChangedEventArgs(isValid: !HasValidationMessages()));
}
public void NotifyPropertyFinished(IPropertyMetadata property)
{
GetPropertyState(property) !.IsBusy = false;
OnValidationStateChanged?.Invoke(this, new ValidationStateChangedEventArgs());
}
public void NotifyPropertyBusy(IPropertyMetadata property)
{
GetPropertyState(property).IsBusy = true;
OnValidationStateChanged?.Invoke(this, new ValidationStateChangedEventArgs(false));
}
private void OnValidationStateChangedHandler(object sender, ValidationStateChangedEventArgs e) => InvokeAsync(() => OnValidationStateChanged.InvokeAsync(e));