We have to show hierarchical data so we have selected XamGrid v13.2 which have child bands. While scrolling parent grid, inner grid headers are also moving they are not freeze (i.e. inner grid row header is not fixed), so we have used TemplateColumnLayout & added XamGrid in it to have separate scroll bar for inner grid.
According to Item Source of inner grid (MaxHeight=500 & MinHeight=25) we have to keep dynamic height of inner grid. So in loaded event of XamGrid we have set height dynamically, but we are seeing extra space as shown in below snapshot.
We are facing below issues –
1. How to remove extra space as shown in below snapshot?
2. If Item Source of inner grid is null or have 0 records we are seeing Expansion Indicator in parent grid because of TemplateColumnLayout. We have to set visibility of expansion indicator dynamically. How we can set expansion indicator visibility dynamically?

If parent xamgrid contains more no. of columns and rows we are seeing issue like on row expansion inner grid vertical scroll bar is working fine but when we are going to scroll row for parent grid using vertical scrollbar of Parent grid then screen gets hang.

Can you please let us know about the issue? .Please find the attachments.