c# - Update UI control from another thread while the UI is busy for time-consuming work -

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my question how update ui controls (such progressbar) thread while ui thread busy querying database (running time-consuming stored procedure) ?

i checked these questions , still no solution found me.

  1. updating ui continuously while main thread busy
  2. how update gui thread in c#?
  3. run multiple ui threads
  4. cross-thread cross-form. display splash screen progress bar

i know 1 option time-consuming work using backgroundworker , update progressbar using reportprogress method, have problem in option because ui thread responsible instantiate , show form after querying database this:

form2 f2=new form2(); f2.show();

i recommend use backgroundworker , put construction , presentation of form2 object in backgroundworker's runworkercompleted event handler, executes on ui thread when backgroundworker finished. don't try update ui background thread. gui classes not threadsafe.


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