namespace System.Web.ModelBinding {
    using System;
 
    public class DefaultModelBinder : IModelBinder {
 
        public DefaultModelBinder() {
            Providers = ModelBinderProviders.Providers;
        }
 
        public ModelBinderProviderCollection Providers {
            get;
            private set;
        }
 
        public bool BindModel(ModelBindingExecutionContext modelBindingExecutionContext, ModelBindingContext bindingContext) {
            ModelBindingContext newBindingContext = bindingContext;
            IModelBinder binder = Providers.GetBinder(modelBindingExecutionContext, bindingContext);
            if (binder == null && !String.IsNullOrEmpty(bindingContext.ModelName)
                && bindingContext.ModelMetadata.IsComplexType) {
 
                // fallback to empty prefix?
                newBindingContext = new ModelBindingContext(bindingContext) { 
                    ModelName = String.Empty,
                    ModelMetadata = bindingContext.ModelMetadata
                };
                binder = Providers.GetBinder(modelBindingExecutionContext, newBindingContext);
            }
 
            if (binder != null) {
                bool boundSuccessfully = binder.BindModel(modelBindingExecutionContext, newBindingContext);
                if (boundSuccessfully) {
                    // run validation
                    newBindingContext.ValidationNode.Validate(modelBindingExecutionContext, parentNode:null);
                    return true;
                }
            }
 
            return false; // something went wrong
        }
    }
}