Exception while rendering report ASP.Net core

vanivk

Hi Team,

Following is the code I have written to render the report. I have a function that returns json string which needs to be generated as a report. But I am facing exception on RenderAsync method. The json string is returned from MongoDB. Anything I am missing?

[MiddlewareFilter(typeof(JsReportPipeline))]
		public IActionResult JsReportView()
		{
			HttpContext.JsReportFeature().Recipe(Recipe.PhantomPdf);
			var viewModel = new dynamicModel();
			var jsonString = viewModel.RetrieveDynamicCollection("1");
			JsReportMVCService.RenderAsync("Report", jsonString);
			return View();
		}

jan_blaha

Please try to start with this example.
https://github.com/jsreport/jsreport-dotnet-example-webapp

vanivk

Hi @jan_blaha,

Thanks for pointing me to the examples. However, I had a question regarding designing reports. As per examples given, I see jsreport required a model defined upfront. Is it possible to design the report without any model defined? As I have a dynamic model, I will only have json string as output from DB. Or if you can suggest any better way.

jan_blaha

It is more a razor/asp.net question than jsreport question.
I am not using razor so not sure.

I would guess you parse the json using json.net into a dynamic object and pass it as dynamic model to the view.
However, as I said, not an expert here.