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The keypress event is triggered when a user presses a key on their keyboard. This event can be used to do things like restrict the input that a user can enter, or to show an error message if the user enters an invalid character.   To prevent the keypress event, you can use the preventDefault() method. This method is called on the event object that is passed to the event listener function. The following code shows how to prevent the keypress event from being triggered when a user presses a letter key on the name input field: const nameInput = document . getElementById ( 'fname' ); nameInput. addEventListener ( 'keypress' , function ( event ) { const allowedCharacters = /^[a-zA-Z]+$/ ; if (!allowedCharacters. test (event. key )) { event. preventDefault (); } });   In this code, the allowedCharacters regular expression is used to check if the key that the user pressed is a letter. If the key is not a letter, the prev

  Introduction: In this blog post, we will explore how to convert an image file to a Base64 string in a Blazor application using C#. We'll provide you with a ready-to-use code snippet that you can easily implement and test in your own project.   Code Explanation: The provided code demonstrates a simple Blazor component that allows users to upload an image file and converts it to a Base64 string. Let's go through the important parts of the code:   1. File Upload: The component contains an `<InputFile>` element that enables users to select an image file. When a file is selected, the `HandleFileSelection` method is triggered. < div class ="container">     < h3 > Convert File to Base64 - CodeLSC </ h3 >     < label for ="images" class ="drop-container">         < span class ="drop-title"> Drop files here </ span >         or         < InputFile id ="