Working with Resource Groups
A resource group is a set of resources (images and sounds) for a UI. By creating a resource group for a UI, you can preload the items for the UI before the page is displayed or rendered.
To create a resource group:
Set the items in the resource group within the Locals section of a UI using the ResourceGroup.Resources property. For example:
<Locals> <ResourceGroup Name="Resources"> <Resources> <Sound Name="MySound" Source="http://www.website.com/soundfile.wav" /> <Image Name="MyImage" Source="http://www.website.com/imagefile.jpg" /> </Resources> </ResourceGroup> </Locals>
Use the Acquire method in the Rules section to load the items from the resource group. For example:
<Rule> <Actions> <Invoke Target="[Resources.Acquire]" /> </Actions> </Rule>
To get progress information, use the AcquisitionStatus property. This status applies to the group as a whole—the status does not reach "Done" until every item in the group has been loaded.
<Rule> <Conditions> <Equality Source="[Resources.AcquisitionStatus]" Value="Done" /> </Conditions> <Actions> ... </Actions> </Rule>
To refer to an item in the resource group, such as to display or play it, use the following format:
ResourceGroupName.#ResourceName!ResourceType
ResourceType can be "Image" or "Sound".
For example:
<Rule> <Conditions> ... </Conditions> <Actions> <PlaySound Sound="[Resources.#MySound!Sound]" /> </Actions> </Rule>
Sample Explorer
- Markup > Resource Group
See Also