Wpf 带有多个ItemTemplateSelector的ItemsControl

我有一个ScrollViewer：

<ScrollViewer x:Name="myScrollViewer">
  <ItemsControl x:Name="myItemsControl" ItemTemplateSelector="{DynamicResource myItemtemplateSelector}" ItemsPanel="{StaticResource myItemsPanel}" />
</ScrollViewer>

---

这条路对吗？

嗯，不，这条线错了：

<Setter Property="ContentTemplate" Value="{DynamicResource SubdisciplineDataTemplateSelector}" />

TemplateSelector

如下所示：

public class MyClass { public bool MyBoolean { get; set; } }

public class ThirdSelector : DataTemplateSelector
{
    private DataTemplateSelector _selector1 = new SubdisciplineDataTemplateSelector();
    private DataTemplateSelector _selector2 = new SubdisciplineDataTemplateSelector2();

    public override DataTemplate SelectTemplate(object item, DependencyObject container)
    {
        var obj = item as MyClass;

        if (obj == null)
            return null;

        if (obj.MyBoolean)
            return _selector1.SelectTemplate(item, container);
        else
            return _selector2.SelectTemplate(item, container);
    }
}

如果您想要/必须保留前两个选择器，请执行此操作。如果你能摆脱它们，就把它们删除，把所有的逻辑带到新的逻辑中去

这是一个通用的解决方案，如果您共享更多的代码和域对象，可能会有一个更适合您的解决方案。

我可能会尝试

public class ThirdSelector : DataTemplateSelector
{
    private DataTemplateSelector _selector1 = new SubdisciplineDataTemplateSelector();
    private DataTemplateSelector _selector2 = new SubdisciplineDataTemplateSelector2();

    public override DataTemplate SelectTemplate(object item, DependencyObject container)
    {
        var obj = item as MyClass;

        if (obj == null)
            return null;

        if (obj.MyBoolean)
            return _selector1.SelectTemplate(item, container);
        else
            return _selector2.SelectTemplate(item, container);
    }
}