The title says it all! :)
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The title says it all! :)
When you enable ViewState for a control, there is a hashed text value that is being transported to and fro the server, hidden, in your page's source.
So the answer to your question would be, whatever the limit is on the size of your POST DATA for your browser, and factors involved with your web server.
Mendhak .... many thanks!
OneSource