how to find stackpanel control inside of an datatemplate of a listbox in windows phone 7

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WinMobile

Hi,

I want to add buttons to each item of a listbox "Tripslist" dynamically
For this i had created a 2 stack panels in a listbox data template.
1st stackpanel "DataRecords" used for displaying data records those are taken from a webservice.
Inside DataRecords stackpanel i had added another stackpanel "stkbuttons" .
The xaml tags for this is as shown below:

<StackPanel>
        <ListBox x:Name="TripList" Height="465" HorizontalAlignment="Left" VerticalAlignment="Top" Width="456" removed="White" Foreground="Blue">
           <ListBox.ItemTemplate>
             <DataTemplate>
                <Border BorderBrush="Black" BorderThickness="0,1,0,1">
                    <StackPanel x:Name="DataRecords" Orientation="Vertical" Width="456">
                This is for showing data records...
                  </StackPanel>
                  <StackPanel x:Name="stkbuttons"  Orientation="Vertical">                                                                                    This is to add buttons...
                                        </StackPanel>
</StackPanel>
                              </Border>
                                
                            </DataTemplate>
                        </ListBox.ItemTemplate>
                    </ListBox>
                </StackPanel>

To this stkbuttons stackpanel i am trying to add buttons dynamically based on criteria as shown below.

private void AddButtons()
       {
           for(int i=0; i<TripList.Items.Count;i++)
           {
               TripsList listitem =(TripsList) TripList.Items[i];
               if (string.Compare(listitem.TripAccept, "Accepted") == 0)
               {
                   Button btnClick = new Button();
                   btnClick.Content = "accept trip";
                   btnClick.Background = new SolidColorBrush(Colors.Green);this.TripList.ItemContainerGenerator.ContainerFromIndex(2) as ListBoxItem;
                   StackPanel mySpDataRecords = SearchVisualTree(TripList, "DataRecords");
                   if (mySpDataRecords != null)
                   {
                       StackPanel mySpButtons = SearchVisualTree(mySpDataRecords, "stkbuttons");
                   }
               }
           }
       }

Definition for SearchVisualTree() is as shown below:

private StackPanel SearchVisualTree(DependencyObject targetElement, string controlName)
       {
           var count = VisualTreeHelper.GetChildrenCount(targetElement);
           if (count == 0)
               return null;

           for (int i = 0; i < count; i++)
           {
               var child = VisualTreeHelper.GetChild(targetElement, i);
               if (child is StackPanel)
               {
                   StackPanel targetItem = (StackPanel)child;

                   if (targetItem.Name == controlName)
                   {
                       return targetItem;
                   }
               }
               else
               {
                   SearchVisualTree(child, controlName);
               }
           }
           return null;
       }

While excuting the below statement

StackPanel mySpDataRecords = SearchVisualTree(TripList, "DataRecords");

From below statement in SearchVisualtree()

var child = VisualTreeHelper.GetChild(targetElement, i);

Then i am getting children count as 1 and child as

{System.Windows.Controls.ScrollViewer}

So due to this the it comes from if condition as

if (child is StackPanel)

and from the for loop in SearchVisualTree() method.

Please let me know the solution for this.