Merge pull request #102 from MayaKirova/master

Fix for bug #230041

Author: mpavlinov

package.json

@@ -22,7 +22,7 @@
     "grunt-contrib-uglify": "",
     "grunt-contrib-watch": "",
     "jshint-stylish": "",
-    "protractor": "",
+    "protractor": "4.0.14",
     "protractor-istanbul-plugin": "",
     "http-server": "",
     "bower": "",

src/igniteui-angular.js

@@ -431,9 +431,18 @@
 	$.ig.angular.igHierarchicalGrid.bindEvents = $.ig.angular.igHierarchicalGrid.bindEvents ||
 			function (scope, element, attrs) {
 		var unbinder;
-		/* rebind data source on changes */
+		// rebind data source on changes
 		unbinder = scope.$watch(attrs.source, function (newValue) {
-			$(element).igHierarchicalGrid("option", "dataSource", newValue);
+			var ds = scope.$eval(attrs.source), grid = element.data("igHierarchicalGrid");
+
+			if (ds !== grid.options.dataSource) {
+				//Setting a timeout 0 pushes the slow databind event to the end of the stack, letting the digest cycle finish, improving the overall responsivness of the page
+				setTimeout(function () {
+					$(element).igHierarchicalGrid("option", "dataSource", newValue);
+				}, 0);
+				return;
+			}
+			
 		}, true);
 		markWatcher(scope, "igHierarchicalGrid", attrs);
 		element.one("$destroy", function () {
@@ -756,4 +765,4 @@
 			module.directive(control, igniteElementDirectiveConstructor);
 		}
 	}
-}(angular, jQuery));
+}(angular, jQuery));