R – Asp.Net Mvc – Render partial view – Manage errors

asp.net-mvcrenderpartial

I got an aspx page call ListArticles with the following code :

<% Html.RenderPartial("Create", new Models.Article()); %>

Create is a partial view (Create.ascx).

In my controller, I got something like this :

if (!ModelState.IsValid) { 
     return View();
}

So the problem is that the view generated by return View(); doesn't render the good view. It's should render the ListArticles view while highlighting errors in the Create partial view but it's only show the Create.ascx view.

Is there a way to handle that ?

Best Answer

I suggest for this situation which you embed a form in your View which need to post and show the errors you use Ajax.BeginForm instead of partial views . Partial Views is more suitable for showing scenarios.

Related Solutions

C# – Render partial from different folder (not shared)

Just include the path to the view, with the file extension.

Razor:

@Html.Partial("~/Views/AnotherFolder/Messages.cshtml", ViewData.Model.Successes)

ASP.NET engine:

<% Html.RenderPartial("~/Views/AnotherFolder/Messages.ascx", ViewData.Model.Successes); %>

If that isn't your issue, could you please include your code that used to work with the RenderUserControl?

Asp.net-mvc – How to render an ASP.NET MVC view as a string

Here's what I came up with, and it's working for me. I added the following method(s) to my controller base class. (You can always make these static methods somewhere else that accept a controller as a parameter I suppose)

MVC2 .ascx style

protected string RenderViewToString<T>(string viewPath, T model) {
  ViewData.Model = model;
  using (var writer = new StringWriter()) {
    var view = new WebFormView(ControllerContext, viewPath);
    var vdd = new ViewDataDictionary<T>(model);
    var viewCxt = new ViewContext(ControllerContext, view, vdd,
                                new TempDataDictionary(), writer);
    viewCxt.View.Render(viewCxt, writer);
    return writer.ToString();
  }
}

Razor .cshtml style

public string RenderRazorViewToString(string viewName, object model)
{
  ViewData.Model = model;
  using (var sw = new StringWriter())
  {
    var viewResult = ViewEngines.Engines.FindPartialView(ControllerContext,
                                                             viewName);
    var viewContext = new ViewContext(ControllerContext, viewResult.View,
                                 ViewData, TempData, sw);
    viewResult.View.Render(viewContext, sw);
    viewResult.ViewEngine.ReleaseView(ControllerContext, viewResult.View);
    return sw.GetStringBuilder().ToString();
  }
}

Edit: added Razor code.

Best Answer

Related Solutions

C# – Render partial from different folder (not shared)

Asp.net-mvc – How to render an ASP.NET MVC view as a string

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