Looking for a solution with an ASP.NET UpdatePanel that contains multiple images. I am trying to trigger some javascript code after the UpdatePanel is refreshed, but only after all images have finished loading. I attempted using add_endRequest as a callback function, but it doesn't ensure the images are fully loaded before executing. Any ideas on how to delay the function execution until all images are loaded?
It is important to handle the load event of each image individually and keep track of their loading progress.
You need to count the total number of images, listen for their load events, keep a record of when each one finishes loading (such as by incrementing a global JavaScript variable), and execute the "finished loading all images" function once all images have been loaded.
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