Dynamic Gridview VIEWSTATE lost on postback

[K B]

Hi, I have a gridview where I do the databind on a dropdownlist
selection event, and create the rows dynamically during the rowdatabound
event. When I click the SAVE button to capture user changes, the grid is
lost. I can see that this is a VIEWSTSATE issue but I don't know how to
fix it.

How do I keep viewstate for the gridview. It is not loaded on page load,
but on a click event. An example or some details would be much
appreciated. I've tried searching but still don't understand how to do
this.

Thanks,
Kit