I'm looking for a way to render a C# class object to javascript. For instance this class definition:
public class Foo
{
public string Bar1 { get; set; }
public string Bar2 { get; set; }
}
should render (an object of class Foo with values filled) as:
foo:
{
bar1: 'bar1value',
bar2: 'bar2value'
}
I know my way around reflection, but before reinventing the wheel all over again I was wondering if there are any libraries already doing these kind of things.
This might do what you want: http://json.codeplex.com/
There's an example as well: http://james.newtonking.com/projects/json/help/
If I recall, JSON demands quotes for key names (though probably tolerates a lack thereof), but I wasn't sure about Javascript, so I tested it with the following HTML, which seems to be usable in Chrome, IE, and Firefox.
<html>
<body>
<script type="text/javascript">
o = { "a":1, "b":2 };
alert(o.a +" " +o.b) ;
</script>
</body>
</html>
Hopefully, you'll be able to use such syntax directly (RFC 4627 says that JSON is a subset of Javascript).
You can serialize your object to JSON.
See my answer here : Any way to pass an object from c# code behind to javascript?
You're probably trying to pass a C# object to the view through post.
[HttpPost]
public JsonResult GetDataController(
string param1,
string param2)
{
var myFoo = new Foo
{
Bar1 = "Param1 is: " + param1,
Bar2 = "Param2 is: " + param2
};
return Json(myFoo);
}
And now, on your view, request the object through ajax:
$.ajax({
type: 'POST',
datetype: 'json',
url: '@Url.Action("GetDataController")',
data: {
param1: "line1",
param2: "line2"
},
success: function (data, textStatus, xhr) {
alert("I've received this JSOn object:\n\n" + data);
},
error: function (xhr, textStatus, errorThrow) {
alert("Error while requesting JSON");
}
Dim RegisteredUsers As New List(Of Person)()
RegisteredUsers.Add(New Person With {.PersonID = 1, .Name = "Bryon Hetrick", .Registered = True})
RegisteredUsers.Add(New Person With {.PersonID = 2, .Name = "Nicole Wilcox", .Registered = True})
RegisteredUsers.Add(New Person With {.PersonID = 3, .Name = "Adrian Martinson", .Registered = False})
RegisteredUsers.Add(New Person With {.PersonID = 4, .Name = "Nora Osborn", .Registered = False})
Dim serializer As New JavaScriptSerializer()
Dim serializedResult = serializer.Serialize(RegisteredUsers)
' Produces string value of:
' [
' {"PersonID":1,"Name":"Bryon Hetrick","Registered":true},
' {"PersonID":2,"Name":"Nicole Wilcox","Registered":true},
' {"PersonID":3,"Name":"Adrian Martinson","Registered":false},
' {"PersonID":4,"Name":"Nora Osborn","Registered":false}
' ]
Dim deserializedResult = serializer.Deserialize(Of List(Of Person))(serializedResult)
' Produces List with 4 Person objects
