How to populate javascript variable with JSON from ViewBag?
Was using this solution for simple objects. But I had some problems getting an array to js objects so I'll just leave what I did here.
C#
@{
using Newtonsoft.Json;
ViewBag.AvailableToday = JsonConvert.SerializeObject(list);
}
js
var availableToday = JSON.parse('@Html.Raw(ViewBag.AvailableToday)');
Client-Side Code:
This is an ajax call to a .Net MVC Controller:
var clientStuff;
$.ajax({
type: 'GET',
url: '@Url.Action("GetStuff", "ControllerName")',
data: {},
dataType: "json",
cache: false,
async: false,
success: function (data) {
clientStuff = data;
},
error: function(errorMsg) {
alert(errorMsg);
}
});
Server-Side Code:
CONTROLLER:
public JsonResult GetStuff()
{
return Json(_manager.GetStuff(), JsonRequestBehavior.AllowGet);
}
MANAGER:
public IEnumerable<StuffViewModel> GetStuff()
{
return _unitofWork.GetStuff();
}
UNIT OF WORK:
public IEnumerable<StuffViewModel> GetStuff()
{
var ds = context.Database.SqlQuery<StuffViewModel>("[dbo].[GetStuff]");
return ds;
}
Unit of Work can be a query to a sproc (as I have done), a repository context, linq, etc. I'm just calling a sproc here for simplicity, although it could be argued that the simplicity lies with Entity Framework and Linq.
In View you can do something like this
@{
var jss = new System.Web.Script.Serialization.JavaScriptSerializer();
var userInfoJson = jss.Serialize(ViewBag.User);
}
in javascript you can use it as
<script>
//use Json.parse to convert string to Json
var userInfo = JSON.parse('@Html.Raw(userInfoJson)');
</script>