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WPF Debounce trick

Sometimes you have to appreciate the power and simplicity that WPF(and by extend XAML has to offer). While having to do a lot of voodoo magic with Reactive Extensions to support debouncing, in WPF it can be reduced to one binding property,  the Delay Binding Property.

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You can use the WPF Delay binding property to debounce binding events. For example following code will debounces the key input until nothing changes for 0.5 seconds:

Text="{Binding UserName,UpdateSourceTrigger=PropertyChanged,Delay=500}"

Sweet!

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