Hi Thangachan,

There's no way to have a scrollbar on just a single band or a single collection of rows. The scrollbar applies to the entire grid (or to entire scroll region). 

So I'm a little confused by your original question. Are you saying that your grid isn't showing a scrollbar when you expand the child band? If that's the case, then the only explanation is that you must have turned off the scrollbars explicitly by setting the this.ultraGrid1.DisplayLayout.Scrollbars property. 

If you have a vertical scrollbar, then take a look at the very top of the scrollbar. There's a little button there above the scroll arrow that the user can drag to create a RowScrollRegion. There's a similiar button on the left edge of the horizontal scrollbar. 

If you are not seeing these buttons, then once again, it's because your code is turning them off. Turning them off would look something like this: 

this.ultraGrid1.DisplayLayout.MaxRowScrollRegions = 1;

If you want to create a RowScrollRegion in code, you would do something like this: 

this.ultraGrid1.DisplayLayout.RowScrollRegions[0].Split();

Frankly, I'm not really sure that's going to help you with what you are trying to achieve. This isn't going to give you a band-specific scrollbar like you want. But in theory, you could keep the parent row in view in one RowScrollRegion while scrolling the child rows in another. 

Hi,

any update ?

Thanks