javascript,.net,asp.net-mvc,razor,icollection , How to iterate over @Model.ICollection in Java Script function?
How to iterate over @Model.ICollection in Java Script function?
Question:
Tag: javascript,.net,asp.net-mvc,razor,icollection
I have a @Model.LoginCoordinates
where LoginCoordinates
is ICollection<Coordinates>
.
The Coordinates
class:
public class Coordinates {
public int Id { get; set; }
public double Latitude { get; set; }
public double Longitude { get; set; }
}
Inside the view in I have:
<script>
function f(){
for (var i = 0, n = @Model.LoginCoordinates.Count; i < n; i++) {
alert(i);//works fine, I just wanted to check if the loop works at all
}
}
</script>
It works fine, but instead of that I would like to display all the do:
<script>
function f(){
for (var i = 0, n = @Model.LoginCoordinates.Count; i < n; i++) {
var latitute = @Model.LoginCoordinates[i].Latitude;
var longituted = @Model.LoginCoordinates[i].Longitude;
}
}
</script>
But I cannot access i
element of the LoginCoordinates
because it is ICollection
. Also I believe foreach is impossible at it is c# object.
Question: how to iterate over ICollection
inside JavaScript
?
EDIT
This above is SSCCE, the real code is;
var map;
function InitializeMap() {
alert('works');
var lat = @Model.LoginCoordinates.First().Latitude;
var lon = @Model.LoginCoordinates.First().Longitude;
var latlng = new google.maps.LatLng(lat, lon);
var mapOptions =
{
zoom: 16,
center: latlng,
mapTypeId: google.maps.MapTypeId.ROADMAP,
disableDefaultUI: true
};
map = new google.maps.Map(document.getElementById("map"), mapOptions); //this breaks the script
}
window.addEventListener('load', InitializeMap);
Answer:
This should do it using JsonConvert
from newtonsoft.json
<script>
var coordinatesJson='@Html.Raw(JsonConvert.Serialize(Model.LoginCoordinates.ToArray())'
var coordinates=JSON.parse(coordinatesJson);
//you now have coordinates as javascript object
var map;
function InitializeMap() {
// could loop over if needed
for(var coords in coordinates) {
// do something with coords
}
</script>
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