A class based on System.Web.UI.HiddenFieldPageStatePersister that supports viewstate and controlstate manipulation even if they are compressed.
If return true ViewState data will be compressed even the
HTTPCompression is applied.Default is false.
Determines whether the response is already compressed.
Loads viewstate and controlstate even if they are previously compressed.
If needed compresses viewstate and controlstate and saves them in hidden fields. Only state greater than 8 KB is compressed.