ASP.Net MVC ModelBindingContext 类——如何填充其模型值

csharp
public ActionResult MyAction(ModelType model)
{
    ModelBindingContext bindingContext = new ModelBindingContext
    {
        Model = model,
        ValueProvider = ValueProvider,
        ModelName = "model"
    };
    PropertyDescriptor property = TypeDescriptor.GetProperties(typeof(ModelType)).Find("PropertyName", false);
    ModelMetadata Metadata = ModelMetadata.FromPropertyDescriptor(property);
    object value = bindingContext.ValueProvider.GetValue("PropertyName").ConvertTo(typeof(PropertyType));
    bindingContext.ModelState.SetModelValue("PropertyName", value, value.ToString());
    bindingContext.ModelState.Add("PropertyName", new ModelState { Value = value, });
    bindingContext.Result = ModelBindingResult.Success(value);
    property.SetValue(model, value);
    return View(model);
}