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We get a numeric percentage which moves the bar along and incremental movements.

The cancel is similar because we do the opposite of the initiation code above by hiding the controls and informing the user of the stop action.

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this article shows how to do GUI processing and background work in WPF using C# with an eye on progress and the ability to cancel.

hi all - on a windows form i have a combobox called currency, it is populated by a tableadapter called exchangerate which is turn populated by a dataset called mydataset.

We cannot access that data once the thread is running and must get the data to to the Do Work process.

if i look at the update to the combobox, they are not reflected until i exit and restart the app - then they're fine.

further down the formload i've tried am i missing something silly to have the values in the combobox change and refresh at the time of the update to the database?

The first thing we do is darken the button which launched the process so the user doesn’t click it twice.

Then we make the cancel button and the progress bar visible to the user as the process is about to begin.

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