Question

I have a cshtml page with a partial view. I have an ajax call in that same view retrieving json data based off separate url. I need to pass in the json data into partial. How to do this?

Answer 1

You could have a controller action taking the view model and passing this view model to the partial view:

public ActionResult SomeAction(MyViewModel model)
{
    return View(model);
}

and then once you retrieve the JSON data you could invoke this controller action passing the model:

// TODO: The JSON data could come from anywhere
var jsonData = { foo: 'bar' };
$.ajax({
    url: '@Url.Action("SomeAction")',
    type: 'POST',
    contentType: 'application/json',
    data: JSON.stringify(jsonData),
    success: function(result) {
        // Now update the partial:
        $('#someId').html(result);
    }    
});