Redraw / Refresh / Clean up controls

Question

Hi I'm working on a Pocket PC application in C#. I have a listbox and on SelectedIndexChanged a lot of things are set in motion (loading data and so on...) Problem is that the listbox wont collaps untill the process described above is finished. This looks very unprofessional. Does some one knows how I can refresh or redraw the listbox control so that it collaps first and then the underlying process is started. I know its eyecandy but's important ! Thank you ! Kind regards ShAdOwHuNtEr

shadowhunter2k3 · Answer

Hi Thanks for the feedback... I'm afraid BeginUpdate and EndUpdate are not available in the Compact Framework. Any other ideas ? Kind regards ShAdOwHuNtEr

shimtanny · Answer

Hi Maybe it helps to call .BeginUpdate() and .EndUpdate(). ListBox lb = new ListBox(); lb.BeginUpdate(); // doing the hard work... lb.EndUpdate(); After calling .BeginUpdate() nothing will change on the ListBox surface. After calling .EndUpdate() the changes will be applied to the surface. Cheers Simon