Hello,

Based on the above suggestions you probably could use something like the following:

public Form1()
{
    InitializeComponent();
    ultraGrid1.MouseWheel += new MouseEventHandler(ultraGrid1_MouseWheel);
}

void ultraGrid1_MouseWheel(object sender, MouseEventArgs e)
{
    if (e.Delta < 0)
    {
      // Determine how exactly you would like to scroll the UltraGrid.If you are using the code below you will scroll 10 rows up/down
    
        ultraGrid1.DisplayLayout.RowScrollRegions[0].ScrollPosition += 7;
    }
    else
    {
        
       ultraGrid1.DisplayLayout.RowScrollRegions[0].ScrollPosition -= 7;
    }
}

 Please if you have any questions do not hesitate to ask me.
Regards