Custom validation before uploading files

  •  12-28-2011, 11:03 AM

    Custom validation before uploading files

    Hi,
           What is the best way to
          1) allow users to select the files for upload
          2) do custom validation and allow user to enter additional meta data about the files
         3)  start the file upload
     
         I modified the manual upload sample to do this but sometimes in the function CuteWebUI_AjaxUploader_OnQueueUI(list) - the list shows as empty by the time I want to do the upload  even though the user previously selected files and as a result no upload takes place. It works sometimes and other times does not. Does the list get affected by other postbacks in the page ?  Is there a workaround to prevent the list from becoming empty?
     
    Thanks. 
     
      
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