Hi Andi,

    I tried you solution. I found interesting property for Webgrid "NeedHeightResize" on client side and I used it this way :

function WebExplorerPane1_OnAfterCollapse() {
    var oWebGrid = ISGetObject("WebGrid1");
    oWebGrid.NeedHeightResize = true;
}
function WebExplorerPane1_OnAfterExpand() {
    var oWebGrid = ISGetObject("WebGrid1");
    oWebGrid.NeedHeightResize = true;
}

It works fine for empty WebGrid, but unfortunately after executing search and collapsing parameters panel a receive something like this (window_bars.png). This is pobably a bug with WebGrid behaviour.

It could be acceptable solution without problem with bars. Do you know how to solve problem with bars.

Problem with bars appears always when we use WebGrid in WebExplorerPane. It doesn't matter if I tray to resize it or not . 

 Thank you in advance.

Regards,

Mariusz

Glenn, 

Thank you for you answer, but it isn't so simple. I presented simplest case in my solution. My real scenerio must have posibility to invalidate some cache from different page. Clearing cache suggested by you works only if I am on this page now and ISDataSource1 exists. I am trying to use CacheKeyDependency as it was designed by Microsoft. MSDN cachekeydependency

In ma scenario

I create cache in global.ascx

            Cache.Insert("CacheKey",DateTime.Now);

then I configure cache for table on Page1.aspx  attachement1.png. ISDataSource1 CacheKeyDependency is set to "CacheKey"

After that I'm going to Page2.aspx  and changing  cache under "CacheKey"

 Cache.Insert("CacheKey",DateTime.Now); <- Here we have new date than previous one.

Table cache on Page1.aspx should invalidate by itself on first load this page.

Regards,

Mariusz