Added a fix for issue #18 If the current node isn't published, the preview is run in the context of the homepage, but the nodeId is appended onto the querystring, so if you did need some contextual information from the node, you should be able to work it out

Author: mattbrailsford

src/Our.Umbraco.DocTypeGridEditor/Web/UI/App_Plugins/DocTypeGridEditor/Js/doctypegrideditor.controllers.js

@@ -54,8 +54,11 @@
 
         $scope.setPreview = function (model) {
             if ("enablePreview" in $scope.control.editor.config && $scope.control.editor.config.enablePreview) {
-                var nodeId = $routeParams.id;
-                dtgeResources.getEditorMarkupForDocTypePartial(nodeId, model.id, $scope.control.editor.alias, model.dtgeContentTypeAlias, model.value, $scope.control.editor.config.viewPath, $scope.control.editor.config.previewViewPath)
+                dtgeResources.getEditorMarkupForDocTypePartial(editorState.current.id, model.id,
+                    $scope.control.editor.alias, model.dtgeContentTypeAlias, model.value,
+                    $scope.control.editor.config.viewPath,
+                    $scope.control.editor.config.previewViewPath,
+                    editorState.current.published)
                     .success(function(htmlResult) {
                         if (htmlResult.trim().length > 0) {
                             $scope.preview = htmlResult;

src/Our.Umbraco.DocTypeGridEditor/Web/UI/App_Plugins/DocTypeGridEditor/Js/doctypegrideditor.resources.js

@@ -34,8 +34,8 @@
                     'Failed to retrieve datatypes'
                 );
             },
-            getEditorMarkupForDocTypePartial: function (nodeId, id, editorAlias, contentTypeAlias, value, viewPath, previewViewPath) {
-                var url = "/" + nodeId +"?dtgePreview=1";
+            getEditorMarkupForDocTypePartial: function (nodeId, id, editorAlias, contentTypeAlias, value, viewPath, previewViewPath, published) {
+                var url = "/" + (published ? nodeId : "") + "?dtgePreview=1" + (published ? "" : "&nodeId=" + nodeId);
                 return $http({
                     method: 'POST',
                     url: url,