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Sascha Wuerzburg
95
HierarchicalDataTemplate for xamDataTree
posted

Hello, i'm a wpf professional but new to infragistics. So i have a question about templating the xamdatatreee but i found no answer in the documention.

I understand, that you layout/template the xamdatatree with your fieldlayout-mechanism. But xamdatatree understand <DataTemplate>s too. So i try

<ig:XamDataTree
  ItemsSource="{Binding RootItemListe}"
  ItemTemplate="{StaticResource local_TreeViewItemTemplate}"
  />

and as ItemTemplate i'm using is:

<HierarchicalDataTemplate ItemsSource="{Binding Children}" x:Key="local_TreeViewItemTemplate">
  <TextBlock Text="{Binding MyProperty}" />
</HierarchicalDataTemplate>

That works find but you interpret this HierarchicalDataTemplate only as simple <DataTemplate> (it's the baseclass).

Is it possible that you recognice it as <HierarchicalDataTemplate> with the 'ItemsSource'-Property to generate the Childnodes automaticly? That would be the "normal" way of WPF for me....

Thank you for support,

Sascha

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  • 5595
    Verified Answer
    posted

    Hi,

    DataTree does not support HierarchicalDataTemplate, it has different mechanism to displaying building hierarchical data:

    1. Using Global Layout definition:

    <ig:XamDataTree.GlobalNodeLayouts>

             <ig:NodeLayout Key="MyCollectionProperty" 

                              DisplayMemberPath="MyProperty" 

                              TargetTypeName="MyType"/>
    </ig:XamDataTree.GlobalNodeLayouts>

    2. Using Nested Layout definition:

    <ig:XamDataTree.NodeLayouts>

    <ig:NodeLayout Key=" MyCollectionProperty"

    DisplayMemberPath="MyProperty"

    TargetTypeName="MyType">

    <ig:NodeLayout.NodeLayouts>

    <ig:NodeLayout Key="MyCollectionProperty"

    DisplayMemberPath="MyProperty"

    TargetTypeName="MyType">

    </ig:NodeLayout>

    </ig:NodeLayout.NodeLayouts>

    </ig:NodeLayout>

    </ig:XamDataTree.NodeLayouts>

    Where:

    • MyType is the type of the objects you would like to see at the corresponding level
    • MyProperty is the property you would like to bind treeitem's header to
    • MyCollectionProperty - the property that contains the data items for the corresponding level

     

    HTH,

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