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[AutoMap(typeof(ViewModel)]
public ActionResult View(int id)
{
   var entity = LoadFromDatabase(id);
   return View(entity);
}

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public ActionResult View(int id)
{
   var entity = LoadFromDatabase(id);
   var viewModel = Mapper.Map<ViewModel>(entity);
   return View(viewModel);
}

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public ActionResult View(User entity) {
 UserEditModel model = //change entity into a edit model
 return View(model);
}

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ModelMetadata modelMetadata = ModelMetadataProviders.Current.GetMetadataForType(() => model, model.GetType());
ModelValidator compositeValidator = ModelValidator.GetModelValidator(modelMetadata, controllerContext);
foreach (ModelValidationResult result in compositeValidator.Validate(null))
  bindingContext.ModelState.AddModelError(ValidationPropertyName, result.Message);

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foreach (var child in destination)
{
  if (!source.Any(sourceTarget => destIdProperty.GetValue(child, null).Equals(idProperty.GetValue(sourceTarget, null))))
  {
    destination.Remove(child);
  }
}

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foreach (var child in source.ChildCollection)
{
  var targetChild = target.ChildCollection.SingleOrDefault(c => c.Equals(child)); //overwrite Equals or replace comparison with an Id comparison 
  if (targetChild == null) target.ChildCollection.Add(Mapper.Map<SourceChildType, TargetChildType>(child)); else Mapper.Map(child, targetChild);
}

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public class PaginationMapper : IObjectMapper
{
    private IMappingEngineRunner _mapper;
    public T Map<T>(object source)
    {
        TypeMap typeMap = _mapper.ConfigurationProvider.FindTypeMapFor(source, source.GetType(), typeof(T));
        MappingOperationOptions mappingOperationOptions = new MappingOperationOptions();
        ResolutionContext resolutionContext = new ResolutionContext(typeMap, source, source.GetType(), typeof(T), mappingOperationOptions);
        return (T)_mapper.Map(resolutionContext);
    }

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  [AutoMap(typeof(EventListViewModel))]
  public ActionResult Index(int? page)
  {
   page = page ?? 1;

   var entities = //load data from database
      .AsPagination(page.Value, 20); //pagination method from MVC Contrib

   return View(entities);
  }

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var _dependencyResolver = DependencyResolver.Current; //Get this from private variable that you can override when unit testing

routes.MapRoute(
  "Countries",
  "countries/{country}",
  new {
      controller = "Countries",
      action = "Index"
  },
  new {

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public class InjectedRouteConstraint<T> : IRouteConstraint where T : IRouteConstraint
{
    private IDependencyResolver _dependencyResolver { get; set; }
    public InjectedRouteConstraint(IDependencyResolver dependencyResolver)
    {
        _dependencyResolver = dependencyResolver;
    }

    public bool Match(HttpContextBase httpContext, Route route, string parameterName,  RouteValueDictionary values, RouteDirection routeDirection)
    {