public Task <IBinding> BindAsync <TValue>(RuntimeBindingContext context, CancellationToken cancellationToken)
{
ParameterInfo parameterInfo = new FakeParameterInfo(typeof(TValue), _memberInfo, context.Attribute, context.AdditionalAttributes.ToArray());
BindingProviderContext bindingProviderContext =
new BindingProviderContext(parameterInfo, bindingDataContract: null, cancellationToken: cancellationToken);
return(_bindingProvider.TryCreateAsync(bindingProviderContext));
}
public async Task <TValue> BindAsync <TValue>(RuntimeBindingContext context, CancellationToken cancellationToken = default(CancellationToken))
{
IBinding binding = await _bindingSource.BindAsync <TValue>(context, cancellationToken);
if (binding == null)
{
throw new InvalidOperationException("No binding found for attribute '" + context.Attribute.GetType() + "'.");
}
IValueProvider provider = await binding.BindAsync(new BindingContext(
_bindingSource.AmbientBindingContext, cancellationToken));
if (provider == null)
{
return(default(TValue));
}
Debug.Assert(provider.Type == typeof(TValue));
ParameterDescriptor parameterDesciptor = binding.ToParameterDescriptor();
parameterDesciptor.Name = null; // Remove the dummy name "?" used for runtime binding.
string value = provider.ToInvokeString();
IWatchable watchable = provider as IWatchable;
// Add even if watchable is null to show parameter descriptor in status.
_watcher.Add(parameterDesciptor, value, watchable);
IValueBinder binder = provider as IValueBinder;
if (binder != null)
{
_binders.Add(binder);
}
IDisposable disposableProvider = provider as IDisposable;
if (disposableProvider != null)
{
_disposable.Add(disposableProvider);
}
return((TValue)provider.GetValue());
}
public async Task <TValue> BindAsync <TValue>(Attribute attribute, CancellationToken cancellationToken)
{
RuntimeBindingContext context = new RuntimeBindingContext(attribute);
return(await BindAsync <TValue>(context, cancellationToken));
}