On one particular form, or a page, I need to disable the viewstate. Basically, I need to avoid the __ViewState line to be inserted. As when this line is there, is intercept any manual post to the server as if nothing was sent. So, as I am going manual on one particular page, I need to avoid that line to be inserted. I tried using the EnableViewState = False at the initialization of the page but this doesn't change anything. Has anyone had success with that so far?