在ASP.NET控件中使用ASP.NET MVC視圖

Question

以下代碼將一個asp.net Web窗體控件添加到Web窗體應用程序中的內容占位符：

var someControl = (System.Web.UI.UserControl)LoadControl("~/serverPath/" + ControlName + ".ascx");
phContentControls.Controls.Add(someControl);

所以我想知道有什么方法可以將呈現的asp.net mvc視圖添加到控件中嗎？

天哪，wtf我剛剛問過：D

Answer 1

您可以嘗試執行以下操作：

這是我想在Webforms頁面中呈現PartialViews或ChildActions時使用的MvcUtility類，但是我認為我沒有在UserControl中使用它。

不知道您使用的是哪個MVC版本，但是我知道這可以與MVC 3和Razor Views一起使用。

public static class MvcUtility
{
        public static void RenderPartial(string partialViewName, object model)
        {
            // Get the HttpContext
            HttpContextBase httpContextBase = new HttpContextWrapper(HttpContext.Current);
            // Build the route data, pointing to the Some controller
            RouteData routeData = new RouteData();
            routeData.Values.Add("controller", typeof(Controller).Name);
            // Create the controller context
            ControllerContext controllerContext = new ControllerContext(new RequestContext(httpContextBase, routeData), new Controller());
            // Find the partial view
            IView view = FindPartialView(controllerContext, partialViewName);
            // create the view context and pass in the model
            ViewContext viewContext = new ViewContext(controllerContext, view, new ViewDataDictionary { Model = model }, new TempDataDictionary(), httpContextBase.Response.Output);
            // finally, render the view
            view.Render(viewContext, httpContextBase.Response.Output);
        }

        private static IView FindPartialView(ControllerContext controllerContext, string partialViewName)
        {
            // try to find the partial view
            ViewEngineResult result = ViewEngines.Engines.FindPartialView(controllerContext, partialViewName);
            if (result.View != null)
            {
                return result.View;
            }
            // wasn't found - construct error message
            StringBuilder locationsText = new StringBuilder();
            foreach (string location in result.SearchedLocations)
            {
                locationsText.AppendLine();
                locationsText.Append(location);
            }
            throw new InvalidOperationException(String.Format("Partial view {0} not found. Locations Searched: {1}", partialViewName, locationsText));
        }

        public static void RenderAction(string controllerName, string actionName, object routeValues)
        {
            RenderPartial("RenderActionUtil", new RenderActionVM() { ControllerName = controllerName, ActionName = actionName, RouteValues = routeValues });
        }
    }

要渲染ChildAction，您需要在Shared MVC Views文件夾中有一個局部視圖：

@model YourNamespace.RenderActionVM

@{
    Html.RenderAction(Model.ActionName, Model.ControllerName, Model.RouteValues);
}

和視圖模型：

public class RenderActionVM
{
    public string ControllerName { get; set; }
    public string ActionName { get; set; }
    public object RouteValues { get; set; }
}

最后在您的Webforms頁面調用中，如下所示：

<% MvcUtility.RenderPartial("_SomePartial", null); %> 

<% MvcUtility.RenderAction("SomeController", "SomeAction", new { accountID = Request.QueryString["id"], dateTime = DateTime.Now }); %>