At Compile time DefaultValueAttribute will not influence the generated IL and it will not be read to initialize the property to that benefit (see DefaultValue attribute just isn't dealing with my Auto Property). So your DataContext for "video_length_textbox" is about to alone, and also your IncrementingTextBox class does not have https://maxestatesgurgaon.finance.blog/2025/03/28/trump-towers-2-pinnacle-of-gurgaon-luxury/