Access XAML object from code

Question

Hello

I created a UserControl in WPF:

In Xaml:

<UserControl x:Class="OutlookPanel.MailRelation"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Height="300" Width="300"
    xmlns:graph="clr-namespace:MyPanel"
>
 <DockPanel>
<graph:Graph Name="theGraph" NodesBindingPath="ChildNodes"
               NodeTemplateSelector="{StaticResource nodeTemplateSelector}">
..
 </DockPanel>
</UserControl>

I cs:

object theThing = e.Parameter;
                    ((MailRelation)sender).theGraph.CenterObject = theThing;

This last sentence does not work as theGraph is not accessible. Any idea why i can access theGraph ?

Thanks

John

Answer 1

Probably because that property is private. Provide a public getter and you should be able to get it. In your code, add something like

 public Graph TheGraph  { get { return theGraph; } }

Answer 2

Name="theGraph"

should be

x:Name="theGraph"

from http://msdn.microsoft.com/en-us/library/ms752059.aspx

x:Name: Specifies a run-time object name for the instance that exists in run-time code after an object element is processed. You use x:Name for cases of naming elements where the equivalent WPF framework-level Name property is not supported. This happens in certain animation scenarios.