I am using igGrid as a Directive; basically your online sample i.e., Have you checked to see if your WebAPI is properly returning data - well I believe that is really the question "properly returning data"; and well my JSON object does contain data using the dataService.js  your example file found online, see below.

<ig-grid id="homesGrid"
data-source="homes"
width="100%"

auto-commit="true"
auto-generate-columns="false"
event-rendered="homesGridRendered">
<columns>
<column key="CommunityName" header-text="Address" data-type="string"></column>
</columns>
<features>
<feature name="Sorting"
event-column-sorted="homesGridColumnSorted"></feature>
<feature name="Selection"
event-row-selection-changed="homesGridRowSelectionChanged"></feature>
<feature name="Paging"
page-size="5"
event-page-size-changed="homesGridPageSizeChanged"
event-page-index-changed="homesGridPageSelectionChanged"></feature>
</features>
</ig-grid>

app.factory('dataService',

['$http', '$q',
function($http, $q){

'use strict';

var svc = {

getAll: function(){

var deferred = $q.defer();

$http.get("http://localhost:81/sfhl_api/").success(deferred.resolve).error(deferred.reject);

return deferred.promise;
},
};

return svc;

}]);

AND YOUR masterDetailCtrl:

dataService.getAll().then(function (homes) {
var x2 = [{ "CommunityName": "c1" }];

$scope.homes = homes;
}, function (error) {
$scope.error = error;
});

Hello Jeff,

Are you getting any errors when you run the page? Can you check the console for errors? You can do so by opening the dev tools (F12) and switching to the console then refresh the page.

Hello Jeff,

I'm attaching a sample which demonstrates the igGrid + Angular + WebAPI combination.

Hope this helps,
Martin Pavlov
Infragistics, Inc. 

Hello Jeff,

I am following to see if the sample Martin has provided has resolved this matter.

Please let me know if I may be of further assistance with this matter.

Hello, the example was very helpful. Is it possible to realize inline editing/updating, delete etc. features in a project like this? 

When I enable the updating behavior...how can I tell it which webAPI method to use for updating etc?