public Tuple <string[], string[]> Get()
{
HttpActionContext actionContext = new HttpActionContext
{
ControllerContext = this.ControllerContext
};
ModelMetadataProvider metadataProvider = this.Configuration.Services.GetModelMetadataProvider();
ModelMetadata metadata = metadataProvider.GetMetadataForType(null, typeof(DemoModel));
IValueProvider valueProvider = new CompositeValueProviderFactory(this.Configuration.Services.GetValueProviderFactories()).GetValueProvider(actionContext);
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = metadata,
ValueProvider = valueProvider,
ModelState = actionContext.ModelState
};
actionContext.Bind(bindingContext);
//验证之前的错误消息
string[] errorMessages1 = actionContext.ModelState.SelectMany(
item => item.Value.Errors.Select(
error => error.ErrorMessage)).ToArray();
//验证之前的错误消息
bindingContext.ValidationNode.Validate(actionContext);
string[] errorMessages2 = actionContext.ModelState.SelectMany(
item => item.Value.Errors.Select(
error => error.ErrorMessage)).ToArray();
return(new Tuple <string[], string[]>(errorMessages1, errorMessages2));
}
private ModelBindingContext GetModelBindingContext(
ModelMetadataProvider metadataProvider,
HttpActionContext actionContext
)
{
string name = Descriptor.ParameterName;
Type type = Descriptor.ParameterType;
string prefix = Descriptor.Prefix;
IValueProvider vp = CompositeValueProviderFactory.GetValueProvider(
actionContext,
_valueProviderFactories
);
ModelBindingContext ctx = new ModelBindingContext()
{
ModelName = prefix ?? name,
FallbackToEmptyPrefix = prefix == null, // only fall back if prefix not specified
ModelMetadata = metadataProvider.GetMetadataForType(null, type),
ModelState = actionContext.ModelState,
ValueProvider = vp
};
return(ctx);
}