Problem with scrolling

[Andrew]

Hello,

I have found a problem with scrolling.

My program:

<Grid.RowDefinitions>
     <RowDefinition Height="*" />
     <RowDefinition Height="*" />
</Grid.RowDefinitions>

<telerik:RadGridView Grid.Row="0" Margin="10" x:Name="rg1" />
<telerik:RadGridView Grid.Row="1" Margin="10" x:Name="rg2" />

public class Item
{
     public int Column1 { get; set; }
     public int Column2 { get; set; }
     public string Column3 { get; set; }
     public string Column4 { get; set; }
     public string Column5 { get; set; }
     public string Column6 { get; set; }
     public string Column7 { get; set; }
     public string Column8 { get; set; }
     public string Column9 { get; set; }
     public string Column10 { get; set; }
}

Dictionary<int, Item> data1 = new Dictionary<int, Item>();
Dictionary<int, Item> data2 = new Dictionary<int, Item>();

public MainPage()
{
     InitializeComponent();

     rg1.SelectionChanged += new EventHandler<SelectionChangeEventArgs>(rg1_SelectionChanged);
     rg1.SelectionMode = System.Windows.Controls.SelectionMode.Single;
     rg1.SelectionUnit = Telerik.Windows.Controls.GridView.GridViewSelectionUnit.FullRow;

     SortDescriptor sd = new SortDescriptor();
     sd.Member = "Column2";
     sd.SortDirection = System.ComponentModel.ListSortDirection.Ascending;
     rg1.SortDescriptors.Add(sd);

     SetColumns();
     LoadData();
}

void rg1_SelectionChanged(object sender, SelectionChangeEventArgs e)
{
     Random rand = new Random();

     data2.Clear();
     for (int i = 0; i < 10; i++)
     {
          Item it = new Item();
          it.Column1 = i;
          it.Column2 = rand.Next();
          data2.Add(i, it);
     }

     try
     {
          rg2.ItemsSource = data2.Values;
          rg2.Rebind();
     }
     catch (Exception ex)
     {
          MessageBox.Show(ex.Message);
     }
}

private void SetColumns()
{
     rg1.AutoGenerateColumns = false;
     rg2.AutoGenerateColumns = false;

     GridViewDataColumn column1 = new GridViewDataColumn();
     column1.Header = "Column1";
     column1.UniqueName = "Column1";
     rg1.Columns.Add(column1);

     GridViewDataColumn column2 = new GridViewDataColumn();
     column2.Header = "Column2";
     column2.UniqueName = "Column2";
     rg1.Columns.Add(column2);

     GridViewDataColumn column3 = new GridViewDataColumn();
     column3.Header = "Column3";
     column3.UniqueName = "Column3";
     rg1.Columns.Add(column3);

     GridViewDataColumn column4 = new GridViewDataColumn();
     column4.Header = "Column4";
     column4.UniqueName = "Column4";
     rg1.Columns.Add(column4);

     GridViewDataColumn column5 = new GridViewDataColumn();
     column5.Header = "Column5";
     column5.UniqueName = "Column5";
     rg1.Columns.Add(column5);

     GridViewDataColumn column6 = new GridViewDataColumn();
     column6.Header = "Column6";
     column6.UniqueName = "Column6";
     column6.Width = 130;
     column6.TextWrapping = TextWrapping.Wrap;
     rg1.Columns.Add(column6);

     GridViewDataColumn column7 = new GridViewDataColumn();
     column7.Header = "Column7";
     column7.UniqueName = "Column7";
     column7.Width = 130;
     column7.TextWrapping = TextWrapping.Wrap;
     rg1.Columns.Add(column7);

     GridViewDataColumn column8 = new GridViewDataColumn();
     column8.Header = "Column8";
     column8.UniqueName = "Column8";
     column8.Width = 130;
     column8.TextWrapping = TextWrapping.Wrap;
     rg1.Columns.Add(column8);

     GridViewDataColumn column9 = new GridViewDataColumn();
     column9.Header = "Column9";
     column9.UniqueName = "Column9";
     column9.Width = 130;
     column9.TextWrapping = TextWrapping.Wrap;
     rg1.Columns.Add(column9);

     GridViewDataColumn column10 = new GridViewDataColumn();
     column10.Header = "Column10";
     column10.UniqueName = "Column10";
     rg1.Columns.Add(column10);


     GridViewDataColumn column33 = new GridViewDataColumn();
     column33.Header = "Column1";
     column33.UniqueName = "Column1";
     rg2.Columns.Add(column33);

     GridViewDataColumn column34 = new GridViewDataColumn();
     column34.Header = "Column2";
     column34.UniqueName = "Column2";
     rg2.Columns.Add(column34);


     Telerik.Windows.Data.GroupDescriptor gd = new Telerik.Windows.Data.GroupDescriptor();
     gd.Member = "Column2";
     gd.DisplayContent = "Column2";

     rg2.GroupDescriptors.Add(gd);
}

private void LoadData()
{
     Random rand = new Random();

     data1.Clear();
     for (int i = 0; i < 100; i++)
     {
          Item it = new Item();
          it.Column1 = i;
          it.Column2 = rand.Next();
          it.Column3 = "ad sdf sfef esfsf eawda wd awd awdawdawdawd awd asddaaaaaaaaaaaaaaaaaaa efefs daawwwwwwwwwwwwwwwwwwwwwwwwwww wewewewewewewe";
          it.Column4 = "asdasda aef hyjdtyjawdad dwd  ddddddddddddd";
          it.Column5 = "asda w adawdwd awd dawdawd awdawda dw adawda awd";
          it.Column6 = "aaaaaaaaaaaaa addddddddddddddddddddddddddddd";
          it.Column7 = "asd dddddddddddddddddd ddd";
          it.Column8 = "asd ddddawd aw ad yyjgyujy uj thdrgdrg drg drg";
          it.Column9 = "asdasd asda sdasd asd dwe fefsefsef ppppppppppppppppppppppppppppp";
          it.Column10 = "asdad yj,vb,vb,vb, vb cb  cvb cvbcvbcvbc cvbcvb";
          data1.Add(i, it);
     }

     rg1.ItemsSource = data1.Values;
     rg1.Rebind();

     foreach (var item in data1)
     {
          rg1.SelectedItems.Add(data1[int.Parse(item.Key.ToString())]);
          break;
     }
}

Select last visible row and then use right arrow key to change selected cell. After few moves the upper grid looses focus (bottom grid has it).