Hi,

I need to create a grid with up to 20 or 30 child bands levels to display read only hierarchical data
I do not want to use ultratree to be able to benefit from ultragrid excel export and print built-in functionnalities.

The issue I have is that when binding the datasource to the grid it is very slow.
I can reproduce the issue with the virtual mode sample

var band = this.ultraDataSource1.Band;
 for (int i = 0; i < 20; i++)
  {
            UltraDataBand childBand = band.ChildBands.Add(i.ToString());
                childBand.Columns.Add("Prime Factors", typeof(string));
                band = childBand;
    }
           
            // Set grid's data source to the ultra data source that we just setup.
            this.ultraGrid1.DataSource = this.ultraDataSource1;

The last line of code is very slow to perfom even if do not have any actual data in the datasource.

Is there any recommandations or workaround to do this.

Thanks in advance