Hello,

how can I show a NodeLayout based on the implemented class?

I have a List<IExpression>. When the List is filled, I am using the concrete implmention.

<ig:XamDataTree ItemsSource="{Binding TreeNodes}" NodeLayoutAssigned="XamDataTree_NodeLayoutAssigned">
            <ig:XamDataTree.GlobalNodeLayouts>
                <ig:NodeLayout Key="ExpressionOperatorNode" TargetTypeName="ExpressionOperatorNode">
                    <ig:NodeLayout.ItemTemplate>
                        <DataTemplate>
                            <Label Content="{Binding Data.Label}"/>
                        </DataTemplate>
                    </ig:NodeLayout.ItemTemplate>
                </ig:NodeLayout>

                <ig:NodeLayout Key="ExpressionGroupNode" TargetTypeName="ExpressionGroupNode">
                    <ig:NodeLayout.ItemTemplate>
                        <DataTemplate>
                            <Label Content="{Binding Data.GroupLable}"/>
                        </DataTemplate>
                    </ig:NodeLayout.ItemTemplate>
                </ig:NodeLayout>
                
            </ig:XamDataTree.GlobalNodeLayouts>
        </ig:XamDataTree>

class ExpressionTreeViewModel
    {
        public ExpressionTreeViewModel()
        {
            TreeNodes = new List<IExpressionNode>();

            TreeNodes.Add(
                new ExpressionOperatorNode(ExpressionOperator.Or, new List<IExpressionNode> {
                    new ExpressionGroupNode("Region Group", new List<IExpressionNode>() {
                        new ExpressionOperatorNode(ExpressionOperator.And, new List<IExpressionNode>() {
                            new ExpressionConditionNode(),
                            new ExpressionConditionNode()
                        })
                    })
                }));
        }

        #region +++ Published Properties +++
        public List<IExpressionNode> TreeNodes { get; }
        #endregion +++ Published Properties +++
    }