에 treeviewitem로 treeviewitem 캐스팅 할 수 없습니다, 및 클래스가 있습니다으로 myTree의내가 웹 서비스 ASMX있어 WPF
Country[] items = new MyService().GetListOfCountries();
structureTree.ItemsSource = items;
코드 : 나는 그것이 트 리뷰 WPF를 MZ에 결합
Country
public string Name {get;set;}
public string Code {get;set;}
public List<Area> Areas {get;set;}
Area
public string Name {get;set;}
public string Code {get;set;}
public List<Regions> Provinces {get;set;}
Provinces
public string Name {get;set;}
public string Code {get;set;}
는 :
:<UserControl x:Class="ObjectsAndZonesSimpleTree"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
<Grid>
<StackPanel Name="stackPanel1">
<GroupBox Header="Choose" Height="354" Name="groupBox1" Width="Auto">
<TreeView Name="structureTree" SelectedItemChanged="structureTree_SelectedItemChanged" Grid.Row="0" Grid.Column="0" ItemsSource="{Binding}" Height="334" ScrollViewer.VerticalScrollBarVisibility="Visible" ScrollViewer.HorizontalScrollBarVisibility="Visible" Width="Auto" PreviewMouseRightButtonUp="structureTree_PreviewMouseRightButtonUp" FontFamily="Verdana" FontSize="12" BorderThickness="1" MinHeight="0" Padding="1" Cursor="Hand" Margin="-1">
<TreeView.Resources>
<HierarchicalDataTemplate DataType="{x:Type MyService:Country}"
ItemsSource="{Binding Path=ListOfRegions}">
<StackPanel Orientation="Horizontal">
<TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text="{Binding Path=Name}"/>
</StackPanel>
</HierarchicalDataTemplate>
<HierarchicalDataTemplate DataType="{x:Type MyService:Region}"
ItemsSource="{Binding Path=Provinces}">
<StackPanel Orientation="Horizontal">
<TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text="{Binding Path=Name}"/>
</StackPanel>
</HierarchicalDataTemplate>
<DataTemplate DataType="{x:Type MyService:Province}"
ItemsSource="{Binding Path=ListOfCities}">
<StackPanel Orientation="Horizontal">
<TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text="{Binding Path=Name}"/>
</StackPanel>
</DataTemplate>
</TreeView.Resources>
</TreeView>
</GroupBox>
</StackPanel>
</Grid>
</UserControl>
이
나에게 널을 제공합니다
오류가 발생합니다. 비 정적 필드, 메서드 또는 속성 'System.Windows.Controls.ItemContainerGenerator.ContainerFromItem (object)'에 대한 개체 참조가 필요합니다. – user278618
정확한 코드를 게시 할 수 있습니까? 'TreeView.ItemContainerGenerator'를 시도한 것처럼 들리지만,'treeTree.ItemContainerGenerator'를 사용하여 특정 트리에서 접근해야합니다. – JustABill