GridView should pass the GridViewDataSet, not the List to it's knockout binding (fix)

Author: exyi

src/Framework/Framework/Controls/GridView.cs

@@ -536,7 +536,9 @@ protected override void AddAttributesToRender(IHtmlWriter writer, IDotvvmRequest
             var mapping = userColumnMappingService.GetMapping(itemType!);
             var mappingJson = JsonConvert.SerializeObject(mapping);
 
-            var dataBinding = TryGetKnockoutForeachingExpression(unwrapped: true).NotNull("GridView does not support DataSource={resource: ...} at this moment.");
+            var dataBinding =
+                (GetDataSourceBinding() as IValueBinding ?? throw new DotvvmControlException(this, "GridView does not support DataSource={resource: ...} at this moment."))
+                    .GetKnockoutBindingExpression(this, unwrapped: true);
             writer.AddKnockoutDataBind("dotvvm-gridviewdataset", $"{{'mapping':{mappingJson},'dataSet':{dataBinding}}}");
             base.AddAttributesToRender(writer, context);
         }

src/Tests/ControlTests/ResourceDataContextTests.cs

@@ -95,8 +95,6 @@ public async Task Repeater()
                         <span class=name data-id={resource: Id}>{{resource: Name}}</span>
 
                         <span>{{value: _parent.CommandData}}</span>
-
-                        <dot:Button Click={command: _root.TestMethod(Name)} />
                     </dot:Repeater>
                "
             );

src/Tests/ControlTests/testoutputs/ResourceDataContextTests.Repeater.html

@@ -15,11 +15,9 @@
 		<div>
 			<span class="name" data-id="1">One</span>
 			<span data-bind="text: CommandData"></span>
-			<input onclick="dotvvm.postBack(this,[&quot;Customers/[0]&quot;],&quot;VoomVIgRFCWNqBr4&quot;,&quot;&quot;,null,[],[],undefined).catch(dotvvm.log.logPostBackScriptError);event.stopPropagation();return false;" type="button" value="">
 			-------------------
 			<span class="name" data-id="2">Two</span>
 			<span data-bind="text: CommandData"></span>
-			<input onclick="dotvvm.postBack(this,[&quot;Customers/[1]&quot;],&quot;VoomVIgRFCWNqBr4&quot;,&quot;&quot;,null,[],[],undefined).catch(dotvvm.log.logPostBackScriptError);event.stopPropagation();return false;" type="button" value="">
 		</div>
 	</body>
 </html>