Hello tomas,

You can use the BusyIndicator if you don't want the users to be able to interact with the application while loading:

http://demos.telerik.com/silverlight/#BusyIndicator/FirstLook

or the ProgressBar's indeterminate mode (IsIndeterminate property) if you do:

http://demos.telerik.com/silverlight/#ProgressBar/FirstLook

Hopefully this is what you are looking for,

Sincerely yours,
Miroslav
the Telerik team

Thank you, but this is not what I am looking for.

I would like to show something like

2 of 50 documents converted (4 % finished)

How can I achieve this?

Thank you very much.

tom

Hello tomas,

The ProgressBar can be as part of the view, say:


The text can be a simple TextBlock that you updated together with the value of the ProgressBar when needed.

Sincerely yours,
Miroslav
the Telerik team

Hello Miroslav.

Yes, I know. But what I dont know is how to receive the status of finished, remains status from web service.

I think I must use more then one tread on the client to update the UI.

Do you have some common patter how to solve this?

Thanks Tom

Hi tomas,

All web requests in Silverlight are asynchronous, so the UI thread should not normally be blocked by a service call unless you are explicitly joining a thread.

Once you have established a session progress updates could happen in two ways:

- Polling - by constantly invoking a web method that returns the progress
- Push - by using a duplex service that will notify the Silverlight client once there is an update.

This talk has more information:

http://blogs.msdn.com/b/silverlightws/archive/2010/04/04/mix-2010-talk-what-s-new-in-wcf-in-silverlight-4.aspx

and a sample project:

http://blogs.msdn.com/b/silverlightws/archive/2009/09/30/having-a-pollingduplex-service-and-any-other-wcf-service-in-the-same-website-causes-silverlight-calls-to-be-slow.aspx

Please note that using a duplex service is essentially client -> server polling under the hood  and it may not scale very well.

Kind regards,
Miroslav
the Telerik team