Clearly a gap in the market you can exploit there then. *pre-emptive celebratory nipple tassle jiggle* - Sean Ewington "Mind bleach! Send me mind bleach!" - Nagy Vilmos CodeStash - Online Snippet Management | My blog | MoXAML PowerToys | Mole 2010 - debugging made easier

You mean the UserState on the server, right? Either you need to write the service so that it can cope with being run concurrently, or wrap the content of that method with lock(UserState){ ... }. (You don't want to use [Synchronized] because it should be able to run concurrently for different users, even if making it work concurrently for the same one is too hard.) Obviously, the first way is preferred. I'm guessing your method is actually not just a 'GetAllXxx' but instead updates some server state, because there should be no problem with doing multiple gets in parallel, and also you would not need to call that multiple times (the result could be cached). Can you explain a bit more about what the service method is doing and why you need to call it multiple times? I would expect that it would be possible to bundle the requests up into a single service call in some way, reducing network traffic as well as reducing your concurrency issues. But you should still write a robust service regarding concurrency.

You could keep track of the filtered items yourself, i.e. put items in a list whenever your filter is going to return True. Blog: http://windowsclientdevelopment.spaces.live.com FAQs: http://windowspresentationfoundation.wikispaces.com http://windowsmobile.wikispaces.com http://vsto.wikispaces.com

Yep. I am using the ResingAdorner from MSDN sample. It shows up 4 corners on the rectangular user control, using which we can do resizing. Now when I drag & overlap a user control onto another one. The resizing corners of the user control beneath are still visible on the overlapped user control. As if the overlapped user control is transparent. The article you pointed seems to be holding the solution to this problem. But i'll have to first get a hang of this AdornerLayer/ Decorator thing :> Pankaj Chamria, Software Programmer.

Appreciate your reply. Good to know you will have happy users now :)

The article was definitely a nice read. You did not mention that you were working with 2 collections. The fine frequency of update would be causing WPF go bonkers, I sensed that and so provided you the third option. I had faced something similar when WPF was beta. I needed updates as fast as 100ms with plotting on a WPF graph. The app just died away! Microsoft recommendation was wait for the 3.0 release having performance boosting. I settled with DirectX plotting finally. It's great to know you've got things sorted out. Have fun :>

The ListView in WPF is so different to the Forms one. :~ Maybe the problem is how to iterate inside the ListView items. Here it is: GridView grid = source.View as GridView; if (grid == null) { //Sorry, only for GridView views return; } foreach (GridViewColumn col in grid.Columns) { //value of header is col.Header } foreach (Object item in source.Items) { PropertyInfo\[\] dataFields = item.GetType().GetProperties(); int i = 0; foreach (GridViewColumn col in grid.Columns) { try { //Get the name of field displayed on grid string strPath = ((Binding)col.DisplayMemberBinding).Path.Path; //Get the field value object propValue = GetValue(item, source.Items, strPath); //Value of cell is propValue } catch (Exception) { } } } I think it will be easier to export (to excel, pdf or anything) from here.

Pankaj Chamria wrote: Out of all the columns make sure you raise changed events for only those properties that are changing in value. I am changing all the properties. Pankaj Chamria wrote: In case you can afford to render the changes once every 1-2 seconds then following the approach given in the below link will be very useful. It solved my performance and UI hanging problems. Can you post your code for solving this problem?

Thanks a lot for taking time out to post a LINQ query for my requirement. I would try using this after converting it to C#:-) Pankaj Chamria, Software Programmer.

If you are moving the horizontal scrollbar then you don't need to do anything to header because moving X position doesn't affect to Y position. Thanks and Regards, Michael Sync ( Blog: http://michaelsync.net)

Tks for the reply Michael. I tried your suggestion but it is behaving still in the same manner. I think for a hyperlink only http://.... type of urls work. I guess a url like c:/DocumentUpload is not identified by the explorer. Anyone with any other suggestions, pl lemme know! Pankaj Chamria, Software Programmer.

Pankaj C wrote: Tks Navaneeth. Your answer nelped a lot. Welcome. Pankaj C wrote: I will try and implement caching on my collection that binds to the GridView to improve performance. Instead of caching, you could go for custom paging. Caching might show weird results for users browsing site at same time. My Website | Ask smart questions

Hey, tks for your help neways. Pankaj Chamria, Software Programmer.

Yes I have checked my spam folders and blocked lists. Nothing there. As far as ISPs are concerned I access my gmail account from many places, so I dont think ISP is the issue. Can the issue be with g-mail servers. Should I try to change the articles e-mail account to some other e-mail provider. Pankaj Chamria, Software Programmer.