Hi, Is this going to change any time soon ?  as I really want just one template that I can reuse.

Marcus

There are no other way to do this easier?

Thanks for that. I was affraid that would be the case.

I am using the MVVM pattern so am wanting to bind the view to the viewmodel with out that much code behind.

Cheers

Marcus

Hi,

Yes, our control works in a different way. If your number of levels in the hierarchy is finite, you could define the template for this number of levels as follows:

       <igTree:XamWebTree.HierarchicalItemTemplate>
            <ig:HierarchicalDataTemplate ItemsSource="{Binding NextLevelCollection}">
                <DataTemplate>
                    <TextBlock Text="{Binding CurrentLevelData}" />
                </DataTemplate>
                <ig:HierarchicalDataTemplate.HierarchicalItemTemplate>
                    <ig:HierarchicalDataTemplate ItemsSource="{Binding NextLevelCollection}">
                        <DataTemplate>
                            <TextBlock Text="{Binding CurrentLevelData}" />
                        </DataTemplate>
                        <ig:HierarchicalDataTemplate.ItemTemplate>
                            <DataTemplate>
                                <TextBlock Text="{Binding CurrentLevelData}" />
                            </DataTemplate>
                        </ig:HierarchicalDataTemplate.ItemTemplate>
                    </ig:HierarchicalDataTemplate>
                </ig:HierarchicalDataTemplate.HierarchicalItemTemplate>
            </ig:HierarchicalDataTemplate>
        </igTree:XamWebTree.HierarchicalItemTemplate>

this is for example a 3-level hierarchy. Repeat the nested HierarchicalDataTemplates for each level of hierarchy you have.

If you don't know the depth of your hierarchy, then you will need to set the Template and the ItemsSource correspondingly at runtime (which you are probably doing already for the ItemsSource), which will be something like the following:

            DataTemplate tpl = (DataTemplate)this.Resources["MyDataTemplate"]; ;

            HierarchicalDataTemplate treeItemTemplate = new HierarchicalDataTemplate();
            treeItemTemplate.Template = tpl;
            treeItemTemplate.ItemTemplate = tpl;

            navigationTree.ItemsSource = testItemsRoot.TestNavigationItems;
            if (testItemsRoot.TestNavigationItems != null && testItemsRoot.TestNavigationItems.Count > 0)
                navigationTree.HierarchicalItemTemplate = treeItemTemplate;

            List<XamWebTreeItem> parents = navigationTree.XamWebTreeItems.ToList(), parentstmp = new List<XamWebTreeItem>();
            ObservableCollection<TestNavigation> testItems = testItemsRoot.TestNavigationItems;
            while (parents.Count() > 0)
            {
                parentstmp = new List<XamWebTreeItem>();
                foreach (XamWebTreeItem i in parents)
                {
                    if (((TestNavigation)i.Data).TestNavigationItems == null || ((TestNavigation)i.Data).TestNavigationItems.Count == 0)
                        continue;

                    i.ItemsSource = ((TestNavigation)i.Data).TestNavigationItems;
                    i.HierarchicalItemTemplate = treeItemTemplate;

                    parentstmp.AddRange(i.XamWebTreeItems.ToList());
                }
                parents = parentstmp;
            }

where testItemsRoot is my data source and TestNavigation is my data object type.

Hi,

This still dosent work for me as it the same as I wrote above. I get the root level and the just child nodes below. My tree can be any number of levels deep.

I would have thought that it would use the same template at all levels if the ItemsSource was bound.

My xaml:

<igTree:XamWebTree x:Name="mytree" ItemsSource="{Binding TNodes}">

<igTree:XamWebTree.HierarchicalItemTemplate>

<ig:HierarchicalDataTemplate ItemsSource="{Binding Children}">

<DataTemplate>

<TextBlock Text="{Binding name}" />

</DataTemplate>

<ig:HierarchicalDataTemplate.ItemTemplate>

<DataTemplate>

<TextBlock Text="{Binding name}" />

</DataTemplate>

</ig:HierarchicalDataTemplate.ItemTemplate>

</ig:HierarchicalDataTemplate>

</igTree:XamWebTree.HierarchicalItemTemplate>

</igTree:XamWebTree>

 TNodes is and ObserableCollection of type node that have a "name" public property and a public Collection called "Children" containing child node objects.

If i use the MS tree it works fine I define a single Template and set the ItemsSource to the Children and it then uses that template for all nodes. Does your control work differently.

Marcus