Thanks Stefaniya,

That is basically what I did.

In addition to hiding root band columns, I also remove child band identation and set root band row height to 1 pixel.

e.Layout.Bands[0].Indentation = -2;
e.Layout.Bands[0].Override.MinRowHeight = 1;
e.Layout.Bands[0].Override.DefaultRowHeight = 1;
e.Layout.Bands[1].Indentation = 0;
e.Layout.Bands[2].Indentation = 0;

The illusion is perfect :-)

Hi,

I can suggest you to show the sibling bands on the first level as shown in the uploaded sample.

Let me know if this works for you.

Best Regards,

Stefaniya