public async void RunValidation()
{
if (!this.Enabled)
{
return;
}
if (Interlocked.Increment(ref _validationRequests) == 1)
{
while (Volatile.Read(ref _validationRequests) > 0)
{
Volatile.Write(ref _validationRequests, 1);
var results = new Queue <ValidationIndicatorEvent>();
State = ValidationState.Validating;
var superClassResult = new ValidationIndicatorEvent();
await Task.Run(() => OnPerformValidation(superClassResult));
results.Enqueue(superClassResult);
if (PerformValidation != null)
{
foreach (var handler in PerformValidation.GetInvocationList())
{
var handlerEventArgs = new ValidationIndicatorEvent();
await Task.Run(() => handler.DynamicInvoke(this, handlerEventArgs));
results.Enqueue(handlerEventArgs);
}
}
// Only show result on last validation cycle
if (Interlocked.Decrement(ref _validationRequests) == 0)
{
var valid = results.All(r => r.ValidationResult == true);
State = valid ? ValidationState.Valid : ValidationState.Error;
_validationMessage = results.Where(r => r.ValidationResult == valid).Select(r => r.ValidationMessage).ToParagraphCase();
}
}
}
}
protected virtual void OnPerformValidation(ValidationIndicatorEvent @event)
{
}