I'm connecting to an Odata service that returns the following JSON data structure:

 {
    "Results":[
     { "ActivationDate":"\/Date(1329677323000)\/",
      "CurrentParticipant":{"ExtensionData":{},"DisplayName":"Site Administrator","EmailAddress":"site@abc.com","Id":1,"IsGroup":false,"Name":"Jannie"},
      "DateOfCreation":"\/Date(1329677323000)\/",
      "DueDate":null,
      "HasBeenEscalated":false,
      "HasBeenRouted":false,
      "IsNew":true,
      "Originator":{"ExtensionData":{},"DisplayName":"Site Administrator","EmailAddress":"site@abc.com","Id":1,"IsGroup":false,"Name":"Jannie"},
      "ProcessInstanceId":942,
      "Routes":null,
      "ExtensionData":{},
      "DisplayName":"Lookup - fcBusinessEvent",
      "Id":1631,
      "Name":"LO20Lookup",
      "ProcessGroupId":3,
      "ProcessId":25,
      "TargetUrl":null,
      "Type":3,
      "VersionNumber":"1.0.0.197"
     }],
    "Total":282,
    "Skip":0,
    "Take":1,
    "Count":1,
    "Page":1,
    "Pages":282
   }

My requirements are to display the 'Originator.DisplayName' in a grid column named 'From' with filtering feature enabled.

Using a JQuery template I am able to render the 'Originator.DisplayName'  in the grid into a column with header 'From'.

<script id="rowTemplate" type="text/x-jquery-tmpl">
	<tr>		
		<td>${Originator.DisplayName}</td>		
	</tr>
</script

<script>
	$(function () {
				
		var dSource = new $.ig.JSONPDataSource({
			dataSource: "@base.Url.Action("Tasks", "Pending")",				
			type: "remoteUrl",
			responseDataKey: "Results",				
		});
 
		$("#table").igGrid({
			dataSource: dSource,
			autoGenerateColumns: false,			
			jQueryTemplating : true,			
			rowTemplate: $("#rowTemplate").html(),							
			columns: [
				{
					headerText: "From",
					key: "Originator"					
				}
			],
			features: [
				{
					name: 'Paging',
					pageSize: 10,
					recordCountKey: "Total"					
				},
				{
					name: 'Sorting'
				},
				{
					name: "Filtering",
					mode: 'simple',
					allowFiltering: true,
					caseSensitive: false										
				}
			]
		});
	});
</script>

Now, the problem....

When filtering the 'From' column the OData filter send to the server comes out as:

$filter=indexof(Originator,Admin)%27ge%270%27&$skip=0&$top=10

How can I get the filter to be applied as follow and as indicated in the OData Protocol URI standard.

$filter=indexof(Originator/DisplayName,Admin)%27ge%270%27&$skip=0&$top=10

Please can you advise to going forward, I do not have control over the OData service and I'm stuggling to find any kind of work around. Except for dropping the Infragistics for something like DataTables or JqGrid

Thanks in advance.