Passing Controller variable to JavaScript file in ASP MVC

Question

I am new to ASP MVC I have retrieved some data from database. I want to pass that variable to JavaScript file.

my controller code :

 using (issue_management_systemEntities db = new issue_management_systemEntities())
        {

            var lineInfo = db.line_supervisor.Where(x => x.supervisor_emp_id == 1).FirstOrDefault();
            var mapInfo = db.line_map.Where(y => y.line_id == lineInfo.line_line_id).FirstOrDefault();
            return View();
        }

I want to pass mapInfo.map variable to js file as this

var mapext = 'mapInfo.map'

how can I do that?

If you have `@model mapInfo`, you can try `var mapext = '@Model.map'` (make sure to `return View(mapInfo)` first). Or else assign to a `ViewBag` and use it like `var mapext = '@ViewBag.map'`. — Tetsuya Yamamoto, Oct 10 '18 at 03:41
Possible duplicates of [Asp.net mvc passing a C# object to Javascript](https://stackoverflow.com/questions/8145716/asp-net-mvc-passing-a-c-sharp-object-to-javascript), https://stackoverflow.com/questions/36756829/pass-c-sharp-model-from-view-to-javascript & https://stackoverflow.com/questions/13419676/assigning-the-model-to-a-javascript-variable-in-razor. — Tetsuya Yamamoto, Oct 10 '18 at 03:44

score 0 · Answer 1 · answered Oct 10 '18 at 03:52

Since you're not binding a model to the view, you could store the data in a viewbag;

ViewBag.mapInfo = db.line_map.Where(y => y.line_id == lineInfo.line_line_id).FirstOrDefault();

Then on the script part of your view file;

var mapext = '@ViewBag.mapInfo';

Passing Controller variable to JavaScript file in ASP MVC

1 Answers1