我正在尝试使用以下代码创建动态Treeview。我正在使用用户控件
开启控制负载
TreeViewItem treeviewItems = new TreeViewItem();
treeviewItems.ItemsSource = TreeViewDataSource.DefaultView;
treeviewItems.ItemTemplate = GetHierarchicalData(ID, Desc);
treeViewCntrl.Items.Add(treeviewItems);
public HierarchicalDataTemplate GetHierarchicalData(string id, string desc)
{
HierarchicalDataTemplate hierdatatemp = null;
try
{
hierdatatemp = new HierarchicalDataTemplate(typeof(DataTable));
hierdatatemp.ItemsSource = new Binding(itemSourceBindingName);
FrameworkElementFactory textBlock = new FrameworkElementFactory(typeof(TextBlock));
textBlock.SetBinding(TextBlock.TextProperty, new Binding(desc));
hierdatatemp.VisualTree = textBlock;
}
catch (Exception ex)
{ }
return hierdatatemp;
}
使用此代码,我可以添加一个项目,但它没有正确添加。首先是在下面添加一个空节点,之后会添加项目。
我想要的是项目应该添加而不添加任何空节点,并且在单击父节点时,应该添加子节点。
如何将子节点添加到父节点?
答案 0 :(得分:1)
public TreeViewItem CreateTreeViewItem(string nodeName, string headerText, string ImagePath)
{
TreeViewItem treeViewItem = new TreeViewItem();
try
{
StackPanel stackPanel = new StackPanel();
Label lblHeaderText = new Label();
Image imgFrontIcon;
imgFrontIcon = new Image();
stackPanel.Orientation = Orientation.Horizontal;
if (ImagePath != null && ImagePath != string.Empty)
{
Uri uri = new Uri(@"pack://application:,,," + ImagePath);
BitmapImage bitMapSource = new BitmapImage();
bitMapSource.BeginInit();
bitMapSource.UriSource = uri;
bitMapSource.EndInit();
imgFrontIcon.Source = bitMapSource;
}
lblHeaderText.Content = headerText;
stackPanel.Children.Add(imgFrontIcon);
stackPanel.Children.Add(lblHeaderText);
nodeName = nodeName.Replace("-", "_");
treeViewItem.Name = nodeName;
treeViewItem.Header = stackPanel;
}
catch (Exception ex)
{ }
return treeViewItem
}
答案 1 :(得分:0)
我发现在WPF中使用树视图非常具有挑战性。这篇文章非常有帮助:
http://www.codeproject.com/Articles/26288/Simplifying-the-WPF-TreeView-by-Using-the-ViewMode