I use the devExpress controls in a range of my websites. Tonight I was having a problem implementing an ASPxTextBox as a hidden field…the normal hidden field was no good as I am inside an ASPxCallbackPanel and I was losing the value.

Basically, my problem was that my ASPxTextBox was working fine, but as soon as I set Visible=”False”, I can no longer read the variable being stored in it…

The solution – ClientVisible=”False” – simple as that!!