How to update the UI label value from backend page without refreshing the page?

Hey,
I am working on a project where in xaml page it has a label and by binding the property associate value is showing.
There is an entry field that accepts the value and send to server and in the label value that data is being fetched and showing.
I want that old label value always be updated when the property value is updated at back end or in server without refreshing the whole page.
Help me.