ProgressBar Example 2 in WPF

Sometimes expressing the progressing of progress bar in a fraction is not appropriate or efficient since we don’t know how long it will take. 

In this case, the indeterminate progress bar can be used efficiently, where an animation lets the user know that something is happening, while indicating that the running time can't be determined.

For this, we have to set the property IsIndeterminate of control ProgressBar to true.

ProgressBarExample2.xaml

UI Display: