geting information from Treeview with HierarchicalDataTemplate - silverlight

Question

Good day!
I have such a template:
<common:HierarchicalDataTemplate x:Key="my2ndPlusHierarchicalTemplate" ItemsSource="{Binding Children}">
<StackPanel Margin="0,2,5,2" Orientation="Vertical" Grid.Column="2">
<CheckBox
IsTabStop="False"
IsChecked="False"
Click="ItemCheckbox_Click"
Grid.Column="1"
/>
<TextBlock Text="{Binding Name}" FontSize="16" Foreground="#FF100101" HorizontalAlignment="Left" FontFamily="Verdana" FontWeight="Bold" />
<TextBlock Text="{Binding Description}" FontFamily="Verdana" FontSize="10" HorizontalAlignment="Left" Foreground="#FFA09A9A" FontStyle="Italic" />
<TextBox Width="100" Grid.Column="4" Height="24" LostFocus="TextBox_LostFocus" Name="tbNumber"></TextBox>
</StackPanel>
</common:HierarchicalDataTemplate>
for a Treeview
<controls:TreeView x:Name="tvServices" ItemTemplate="{StaticResource myHierarchicalTemplate}" ItemContainerStyle="{StaticResource expandedTreeViewItemStyle}" Grid.Column="1" Grid.Row="2" Grid.ColumnSpan="3" BorderBrush="#FFC1BCBC" FontFamily="Verdana" FontSize="14">
</controls:TreeView>
I want to know the Name property of each TextBox in Treeview to make validation of each textbox such as:
private void TextBox_LostFocus(object sender, RoutedEventArgs e)
{
tbNumber.ClearValidationError();
if ((!tbNumber.Text.IsZakazNumberValid()) && (tbNumber.Text != ""))
{
tbNumber.SetValidation(MyStrings.NumberError);
tbNumber.RaiseValidationError();
isValid = false;
}
else
{
isValid = true;
}
}
and I wnat to see what check boxes were checked
how can I do it?

Answer 1

I'm not sure I'm clear why you need to know the name.
In this case the sender parameter of the LostFocus event is the TextBox in question. Hence you could use:-
TextBox tb = (TextBox)sender;
Now use this tb variable instead of using tbNumber (which doesn't actually exist because its defined in a template).