Modify the demo a bit

Author: sitefinitysteve

demo/app/main-page.ts

@@ -39,4 +39,8 @@ export function onTapTest(args){
 export function onDumpModel(args: any){
     var label = <Label>page.getViewById("modelDumpLabel");
     label.text = JSON.stringify(model.data.getItem(0));
+}
+
+export function onPropertyChanged(args: any){
+    console.log("Property Changed");
 }

demo/app/main-page.xml

@@ -18,7 +18,7 @@
       <Repeater items="{{ data }}">
           <Repeater.itemTemplate>
             <StackLayout class="listitem" >
-              <CheckBox:CheckBox text="{{ text }}" checked="{{ checked }}" fillColor="{{ color }}" tintColor="{{ color }}" />
+              <CheckBox:CheckBox text="{{ text }}" checked="{{ checked }}" fillColor="{{ color }}" tintColor="{{ color }}" propertyChanged="onPropertyChanged" />
             </StackLayout>  
           </Repeater.itemTemplate>
       </Repeater>