Field names were used in the SQL statement, and the SQLs are tested. The parameter names are same in the page thats passing their values and in the report page and in the SQL statements. Yeah, sure it's something subtle.

Thanks so much Christian. It was really helpful. I thought there could be a better way that I don't know, but looks like there isn't. Off course I'll not use ViewState, probably, I'll use the Session.

Hi Michael, In the MenuItems Click event handler, I did already set the ActiveViewIndex to the appropriate index depending on the MenuItem Click, so that should not be a problem. After I read your suggestions, I used SetActiveView instead of ActiveViewIndex. I did EnableViewState="true" for all of them, I even did EnableCaching="true" for the SqlDataSource. Everything works fine as they used to - Except the GridView disappears with edit, update, cancel, insert button clicks. You need to click on the MenuItem again to see it. I was also thinking that its happening because of the MultiViews. But interestingly, even if I move my GridView out of the MultiView, still does the same. What a puzzle!!! I am confident though that you can give me more clues! Thanks so much. Ekjon

Try like that.. In Page_load if (!Page.IsPostBack){ //Getting the data from database //Bind the data to Gridview // Add this datasource to cache or session (e.g. Cache["mydata"]= dsProject.Table[0]; ) } else{ //Re-bind the gridview with datasource from cache. (e.g. GridView1.DataSource = (DataTable)Cache["mydata"];) } Thanks and Regards, Michael Sync ( Blog: http://michaelsync.net)

Thanks Mike.