Hey Mike,

I put together a small sample that uses the same amount of code that you use and I am unable to reproduce the problem.  I tried using the release of version 9.2 and the release version of 10.3

Here is the only code that I used.

public partial class VirtualizeRecordTest : Window
    {
        public BindingList<Person> bindingList = new BindingList<Person>();
        public VirtualizeRecordTest()
        {
            InitializeComponent();
            this.Loaded += new RoutedEventHandler(VirtualizeRecordTest_Loaded);
        }

        void VirtualizeRecordTest_Loaded(object sender, RoutedEventArgs e)
        {
            this.XamGrid1.RecordContainerGenerationMode = Infragistics.Windows.Controls.ItemContainerGenerationMode.Virtualize;
           
            for (int i = 0; i <= 10000; i++)
            {
                Person p = new Person(){Age = i,JobTitle="Title "+i,Name="Name " + i.ToString(), Salary= i*100};
                bindingList.Add(p);
            }
            XamGrid1.DataSource = bindingList;

        }
    }

in xaml.....

    <Grid>
        <igDP:XamDataGrid x:Name="XamGrid1"/>
    </Grid>

Person is just a simple object.  Nothing special. 

 I go up and down with the scrollbar and nothing seems to happen in my sample.  So, do you have an exact sample that reproduces the issue?  Maybe I can take a look at that and debug it.  If you can, please attach the sample to the next thread. 

I will be waiting for your reply.

Hello,

I noticed your post has not yet been answered. I apologize for that.

Have you tried a newer version? We are up to version 2010.3. We did have a bug concerning virtualization that was fixed.

Sincerely,