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hey this is left Technical and in this video Iamp;#39;m going to show you how you can restrict numbers for a textbox input so we want to make sure that the user only inputs number values nothing more so weamp;#39;re going to click on the text box here and generate a key press event handler for the key press event and make sure itamp;#39;s registered and uh in the key press event handler we want to have this if statement in here and what it says is it says if uh the key being pressed is not a number we want to handle the um the event and what what I mean by handling the event is that mean we will no longer proceed with further operations all the base functionality of this uh event all the base functionality raised by this event will be bypassed so this event is handled nothing more will nothing like the text values wonamp;#39;t be updated or anything when the key is pressed so thatamp;#39;s what handled is um that just means that if itamp;#39;s a number donamp;#39;t do anything o