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Comments by Member 14192762 (Top 2 by date)

Member 14192762 29-Nov-19 15:12pm View    
Thank you for your comment. Finally, I figured out the reason. It was because I had two form tags in my master page by mistake.
Member 14192762 25-Nov-19 9:52am View    
Hi, Thank you for your comment. I have updated the question and include the full code of the web page. By the way, the problem is happening in all the forms in the App, not only this one. Some of the controls, which I faced the problem with it is the Image Button, as you can see that I have tried to use a button instead of it to handle the click event, however this should not be the solution.