JSON object(s) not binding to Model

Question

Some objects in JSON are not binding to Model.

JS

var filterSet = {
    "Filters":[Object1],
    "FilterSets":[{
        "Filters":[Object2,Object3],
        "FilterSets":[{
            "Filters":[Object4,Object5],
            "FilterSets":[]
        }]
    }]
}
$.ajax({
    url: '/ControllerName/GetData',
    dataType: 'json',
    data: JSON.stringify({
        filterSet: filterSet
    }),
    type: 'POST',
    contentType: 'application/json; charset=utf-8'
}).done(function (result) {
    ...
});

Controller

public JsonResult GetData(FilterSet filterSet)
{
    ....

    return Json(data);
}

Model

public class Filter
{
    public string Field1 { get; set; }
    public string Field2 { get; set; }
    ...

    public Filter()
    {
        ...
    }
}

public class FilterSet
{
    public List<Filter> Filters { get; set; }
    public List<FilterSet> FilterSets { get; set; }

    public FilterSet()
    {
        Filters = new List<Filter>();
        FilterSets = new List<FilterSet>();
    }
}

The Filters list with Object4 and Object5 is bound, but the Filters list with Object1 and the Filters list with Object2 and Object3 are not. Or perhaps they are but are not getting populated with the correct values.

So all Filters siblings of non-empty FilterSets are just empty lists.

It doesn't seem to be the JS object causing this weird issue. I think it's something with the Model. What's missing from the Model? Or what's wrong in general?

possible duplicate of Sending complex JSON objects to Asp.net MVC using jQuery — Agat
– Agat, Commented Nov 4, 2013 at 22:53

Joseph Martinez · Accepted Answer · 2013-11-08 22:59:55Z

1

Renaming the fields solved the issue. Perhaps, the pluralized field name was too close to the class name.

public class FilterSet
{
    public List<Filter> FilterList { get; set; }
    public List<FilterSet> FilterSetList { get; set; }

    public FilterSet()
    {
        FilterList = new List<Filter>();
        FilterSetList = new List<FilterSet>();
    }
}

answered Nov 8, 2013 at 22:59

Joseph Martinez

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1 Comment

Modika Over a year ago

Racking my brains as one bind wasn't working, gave me an idea and renaming one field fixed it....crazy. +1

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