Neuerstellung

scr/FSI.BT.IR.Organization.Web/Helper.cs

@@ -0,0 +1,30 @@
+using Microsoft.AspNetCore.Mvc.Rendering;
+using Microsoft.AspNetCore.Mvc.ViewEngines;
+using Microsoft.AspNetCore.Mvc.ViewFeatures;
+using Microsoft.AspNetCore.Mvc;
+
+namespace FSI.BT.IR.Organization.Web;
+
+public class Helper
+{
+    public static string RenderRazorViewToString(Controller controller, string viewName, object model = null)
+    {
+        controller.ViewData.Model = model;
+        using (var sw = new StringWriter())
+        {
+            IViewEngine viewEngine = controller.HttpContext.RequestServices.GetService(typeof(ICompositeViewEngine)) as ICompositeViewEngine;
+            ViewEngineResult viewResult = viewEngine.FindView(controller.ControllerContext, viewName, false);
+
+            ViewContext viewContext = new ViewContext(
+                controller.ControllerContext,
+                viewResult.View,
+                controller.ViewData,
+                controller.TempData,
+                sw,
+                new HtmlHelperOptions()
+            );
+            viewResult.View.RenderAsync(viewContext);
+            return sw.GetStringBuilder().ToString();
+        }
+    }
+}