Question

I have an ASPX page where I am uploading an image to server for on a serverside button click event. In my page, it will show the available image if it exists. When I upload an image, it will replace the old one with the new one. Now after uploading also the same image is getting displayed. How can tackle this? I used window.location.reload() javascript function to refresh, but then it is not working. It is posting the page again.

This is my code

    Do UploadImage(studentId,mode);  // Function to upload image     StringBuilder sbc = new StringBuilder();      sbc.Append('<script language='javascript'>');     sbc.Append('alert('Upload process completed successfully!');');     sbc.Append('window.location.reload()');     sbc.Append('</script>');     HttpContext.Current.Response.Write(sbc); 

Answer 1

It’s being cached in the browser. To overcome this – alter the url of the image. This can be done by including a timestamp, version number, or guid in the image file name.