I have built a custom control that is similar to people picker in sharepoint to get the list item details across different lists.? I am loading all the items (user wants to see all items on load) in picker dialog when the user clicks browse button.
It takes 5 to 10 seconds time to load all items and it doesn't display anything like it is loading or doing something. I would like to display a empty picker dialog with please wait option when the user clicks browse button. Any ideas how to acheive this?
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