Hi ,

  I am using a XAMDatagrid inside a Combo Box. When more items are there in the XAMDataGrid, & when i click on the scrollbar down button for the first time, drop down is closing. But when we try to open & do the same thing for second time, then its allowing the scrolling. i.e when we click on the scroll bar down button for the first time , the scroll bar is at the top. On click on the down button drop down is closing. But when we open it for 2nd time, scroll bar is not exactly at the top ,then if we click the scroll bar down button, then scrolling is working as expected.

Issue is happening whenever the Scroll bar is at the top most position & try to click on the scroll bar down button, then drop down is closing .