How to include a partial view inside a webform

Question

Some site I\'m programming is using both ASP.NET MVC and WebForms.

I have a partial view and I want to include this inside a webform. The partial view has some code

Answer 1

FWIW, I needed to be able to render a partial view dynamically from existing webforms code, and insert it at the top of a given control. I found that Keith's answer can cause the partial view to be rendered outside the tag.

Using the answers from Keith and Hilarius for inspiration, rather than render direct to HttpContext.Current.Response.Output, I rendered the html string and added it as a LiteralControl to the relevant control.

In static helper class:

    public static string RenderPartial(string partialName, object model)
    {
        //get a wrapper for the legacy WebForm context
        var httpCtx = new HttpContextWrapper(HttpContext.Current);

        //create a mock route that points to the empty controller
        var rt = new RouteData();
        rt.Values.Add("controller", "WebFormController");

        //create a controller context for the route and http context
        var ctx = new ControllerContext(new RequestContext(httpCtx, rt), new WebFormController());

        //find the partial view using the viewengine
        var view = ViewEngines.Engines.FindPartialView(ctx, partialName).View;

        //create a view context and assign the model
        var vctx = new ViewContext(ctx, view, new ViewDataDictionary { Model = model }, new TempDataDictionary(), new StringWriter());

        // This will render the partial view direct to the output, but be careful as it may end up outside of the  tag
        //view.Render(vctx, HttpContext.Current.Response.Output);

        // Better to render like this and create a literal control to add to the parent
        var html = new StringWriter();
        view.Render(vctx, html);
        return html.GetStringBuilder().ToString();
    }

In calling class:

    internal void AddPartialViewToControl(HtmlGenericControl ctrl, int? insertAt = null, object model)
    {
        var lit = new LiteralControl { Text = MvcHelper.RenderPartial("~/Views/Shared/_MySharedView.cshtml", model};
        if (insertAt == null)
        {
            ctrl.Controls.Add(lit);
            return;
        }
        ctrl.Controls.AddAt(insertAt.Value, lit);
    }