How to check idle time
I am have created a method for the KeyUp event for a TextBlock, which
filters contacts. All this works fine.
Now, instead of filtering on every KeyUp event, I want to check if the
user is idle for 1-1.5 secs. before triggering the filter method.
I am absolutely new to C#, so I do not even know how to approach this
problem. How can I achieve this?
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