Hello Robert,

To get a rows that expanded by user, I think you get little bit missing. you should use ChildExpanded. You can try this code :

<script type="text/javascript">
        function OnClientCellDblClick(id, args) {
            var grid = ISGetObject(id);
            var rt = grid.RootTable;
            var rc = rt.GetRowsCount();
            var noneExpanded = true;
            for (i = 0; i < rc; i++) {
                var r = rt.GetRow(i);
                
                if (r.ChildExpanded == true) {
                    alert('Row ' + i + ' is expanded');
                    noneExpanded = false;
                }
            }
            if (noneExpanded==true) alert('No rows are expanded');
        }
        function OnClientGroupExpand(id) {
            alert('group expanded');
        }
 

 Would you like to tell me that I am right or not ?

Hope this helps.

Riendy

You're right, Riendy, it's the ChildExpanded property that I need - it works fine.  The help could be clearer about this; as I understand "expanded", child rows are shown when the parent is expanded and not when the parent is collapsed. So for the Expanded property "Gets or sets a value that indicates whether the row is expanded" should read "... whether the row's parent is expanded".  The ChildExpanded text is "Determines whether the Child Rows of current row is expanded" should read "... whether this row is expanded". 

Anyway, thanks for your help.