public void CreateBindingMetadata(BindingMetadataProviderContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
// BinderModelName
foreach (var binderModelNameAttribute in context.Attributes.OfType <IModelNameProvider>())
{
if (binderModelNameAttribute?.Name != null)
{
context.BindingMetadata.BinderModelName = binderModelNameAttribute.Name;
break;
}
}
// BinderType
foreach (var binderTypeAttribute in context.Attributes.OfType <IBinderTypeProviderMetadata>())
{
if (binderTypeAttribute.BinderType != null)
{
context.BindingMetadata.BinderType = binderTypeAttribute.BinderType;
break;
}
}
// BindingSource
foreach (var bindingSourceAttribute in context.Attributes.OfType <IBindingSourceMetadata>())
{
if (bindingSourceAttribute.BindingSource != null)
{
context.BindingMetadata.BindingSource = bindingSourceAttribute.BindingSource;
break;
}
}
// PropertyFilterProvider
var propertyFilterProviders = context.Attributes.OfType <IPropertyFilterProvider>().ToArray();
if (propertyFilterProviders.Length == 0)
{
context.BindingMetadata.PropertyFilterProvider = null;
}
else if (propertyFilterProviders.Length == 1)
{
context.BindingMetadata.PropertyFilterProvider = propertyFilterProviders[0];
}
else
{
var composite = new CompositePropertyFilterProvider(propertyFilterProviders);
context.BindingMetadata.PropertyFilterProvider = composite;
}
var bindingBehavior = FindBindingBehavior(context);
if (bindingBehavior != null)
{
context.BindingMetadata.IsBindingAllowed = bindingBehavior.Behavior != BindingBehavior.Never;
context.BindingMetadata.IsBindingRequired = bindingBehavior.Behavior == BindingBehavior.Required;
}
if (GetBoundConstructor(context.Key.ModelType) is ConstructorInfo constructorInfo)
{
context.BindingMetadata.BoundConstructor = constructorInfo;
}
}
public void CreateBindingMetadata(BindingMetadataProviderContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
// BinderModelName
foreach (var binderModelNameAttribute in context.Attributes.OfType <IModelNameProvider>())
{
if (binderModelNameAttribute?.Name != null)
{
context.BindingMetadata.BinderModelName = binderModelNameAttribute.Name;
break;
}
}
// BinderType
foreach (var binderTypeAttribute in context.Attributes.OfType <IBinderTypeProviderMetadata>())
{
if (binderTypeAttribute.BinderType != null)
{
context.BindingMetadata.BinderType = binderTypeAttribute.BinderType;
break;
}
}
// BindingSource
foreach (var bindingSourceAttribute in context.Attributes.OfType <IBindingSourceMetadata>())
{
if (bindingSourceAttribute.BindingSource != null)
{
context.BindingMetadata.BindingSource = bindingSourceAttribute.BindingSource;
break;
}
}
// PropertyFilterProvider
var propertyFilterProviders = context.Attributes.OfType <IPropertyFilterProvider>().ToArray();
if (propertyFilterProviders.Length == 0)
{
context.BindingMetadata.PropertyFilterProvider = null;
}
else if (propertyFilterProviders.Length == 1)
{
context.BindingMetadata.PropertyFilterProvider = propertyFilterProviders[0];
}
else
{
var composite = new CompositePropertyFilterProvider(propertyFilterProviders);
context.BindingMetadata.PropertyFilterProvider = composite;
}
if (context.Key.MetadataKind == ModelMetadataKind.Property)
{
// BindingBehavior can fall back to attributes on the Container Type, but we should ignore
// attributes on the Property Type.
var bindingBehavior = context.PropertyAttributes.OfType <BindingBehaviorAttribute>().FirstOrDefault();
if (bindingBehavior == null)
{
bindingBehavior =
context.Key.ContainerType.GetTypeInfo()
.GetCustomAttributes(typeof(BindingBehaviorAttribute), inherit: true)
.OfType <BindingBehaviorAttribute>()
.FirstOrDefault();
}
if (bindingBehavior != null)
{
context.BindingMetadata.IsBindingAllowed = bindingBehavior.Behavior != BindingBehavior.Never;
context.BindingMetadata.IsBindingRequired = bindingBehavior.Behavior == BindingBehavior.Required;
}
}
}
/// <inheritdoc />
public void CreateBindingMetadata(BindingMetadataProviderContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
// BinderModelName
foreach (var binderModelNameAttribute in context.Attributes.OfType<IModelNameProvider>())
{
if (binderModelNameAttribute?.Name != null)
{
context.BindingMetadata.BinderModelName = binderModelNameAttribute.Name;
break;
}
}
// BinderType
foreach (var binderTypeAttribute in context.Attributes.OfType<IBinderTypeProviderMetadata>())
{
if (binderTypeAttribute.BinderType != null)
{
context.BindingMetadata.BinderType = binderTypeAttribute.BinderType;
break;
}
}
// BindingSource
foreach (var bindingSourceAttribute in context.Attributes.OfType<IBindingSourceMetadata>())
{
if (bindingSourceAttribute.BindingSource != null)
{
context.BindingMetadata.BindingSource = bindingSourceAttribute.BindingSource;
break;
}
}
// ModelBindingMessageProvider
// Provide a unique instance based on one passed to the constructor.
context.BindingMetadata.ModelBindingMessageProvider = new ModelBindingMessageProvider(_messageProvider);
// PropertyFilterProvider
var propertyFilterProviders = context.Attributes.OfType<IPropertyFilterProvider>().ToArray();
if (propertyFilterProviders.Length == 0)
{
context.BindingMetadata.PropertyFilterProvider = null;
}
else if (propertyFilterProviders.Length == 1)
{
context.BindingMetadata.PropertyFilterProvider = propertyFilterProviders[0];
}
else
{
var composite = new CompositePropertyFilterProvider(propertyFilterProviders);
context.BindingMetadata.PropertyFilterProvider = composite;
}
if (context.Key.MetadataKind == ModelMetadataKind.Property)
{
// BindingBehavior can fall back to attributes on the Container Type, but we should ignore
// attributes on the Property Type.
var bindingBehavior = context.PropertyAttributes.OfType<BindingBehaviorAttribute>().FirstOrDefault();
if (bindingBehavior == null)
{
bindingBehavior =
context.Key.ContainerType.GetTypeInfo()
.GetCustomAttributes(typeof(BindingBehaviorAttribute), inherit: true)
.OfType<BindingBehaviorAttribute>()
.FirstOrDefault();
}
if (bindingBehavior != null)
{
context.BindingMetadata.IsBindingAllowed = bindingBehavior.Behavior != BindingBehavior.Never;
context.BindingMetadata.IsBindingRequired = bindingBehavior.Behavior == BindingBehavior.Required;
}
}
}
