CRM 2015 Filtering Sample

json-filter-item-collection.cs

public class JsonFilterItemCollection : FilterItemCollection
{
  ...

  protected override void OnInitialising(string filename)
  {
    using (var reader = File.OpenText(filename))
    {
      var settings = new JsonSerializerSettings();
          settings.ContractResolver = new CamelCasePropertyNamesContractResolver();
      this.Filter = JsonConvert.DeserializeObject<Filter>(reader.ReadToEnd(), settings);
    }
  }
}