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Posted by / 06-Mar-2019 18:47

Wpf progress bar not updating

The Progress Bar is, just like other standard WPF controls, rendered to match the visual style of the operating system.Here on Windows 7, it has a nice animated gradient, as seen on the screenshot.This control is especially used for show progress on automated operations e.g. In this short article, I will explain how to make use of the Progress Bar control for simulating file copy operation from source to the destination path.The above UI defines Progress Bar(in Gray shade), List Boxes represents Source Files to copy to Destination file path.Instead, we update progress by setting a property that we then bind the Progress Bar. When you display a Progress Bar to show progress on some background task, you often know how much work needs to be done and how much of the work has already been done.The Progress Bar below shows that we’ve loaded 5 out of 12 records, so the Progress Bar is 42% full.

This allows us to update WPF UI elements on the thread, which does not own the control to it. In the Text Block ‘txt File Copied’, I am displaying the number of files being copied.

The Button ‘Source Path’ displays all the files to copy in the List Box below ‘Source Path’ Text Block.

When the user clicks on ‘Copy Files’ button, all the files will be copied in the List Box below ‘Target Path’ Text Block.

You could use a simple busy indicator to show that something is happening.

But you may also want to show how much of the operation is complete, giving the user a sense of how much work remains and how fast the work is being done.

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Another approach is to use actual minimum and maximum values from a list of tasks you're performing.