将TreeViewItem标记传递给事件处理程序c#
好的,下面是我的代码,到目前为止,我正在尝试向自定义文件浏览器添加菜单。现在我正在开发一个新的文件夹按钮,但最终我想在菜单中添加更多的项目。我的问题是如何首先将标记从项传递到菜单\u MouseLeftClick事件处理程序。提前谢谢你的帮助我是新来的提前谢谢将TreeViewItem标记传递给事件处理程序c#,c#,wpf,treeview,C#,Wpf,Treeview,好的,下面是我的代码,到目前为止,我正在尝试向自定义文件浏览器添加菜单。现在我正在开发一个新的文件夹按钮,但最终我想在菜单中添加更多的项目。我的问题是如何首先将标记从项传递到菜单\u MouseLeftClick事件处理程序。提前谢谢你的帮助我是新来的提前谢谢 using System.Windows; using System.Windows.Controls; using System.IO; using System.Collections.Generic; using System;
using System.Windows;
using System.Windows.Controls;
using System.IO;
using System.Collections.Generic;
using System;
namespace TreeViewWithMenu
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
//Create Objects and Handlers
InitializeComponent();
PopTree();
SetMenu();
this.treeView.MouseRightButtonDown += TreeView_MouseRightButtonDown;
this.menu.MouseLeftButtonDown += Menu_MouseLeftButtonDown;
}
private void TreeView_MouseRightButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
//Make Folder Visable
this.menu.Visibility = Visibility.Visible;
}
private void SetMenu()
{
//Set Menu for new Folder
MenuItem MeItem = new MenuItem();
MeItem.Header = "New Folder";
MeItem.Tag = "New Folder";
menu.Items.Add(MeItem);
menu.Visibility = Visibility.Hidden;
}
private void Menu_MouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
//Create New FOlder
Directory.CreateDirectory("");
}
internal void PopTree()
{
//Populate Tree
List<string> CleanDirs = new List<string>();
string [] Dirs = Directory.GetDirectories(Environment.GetFolderPath(Environment.SpecialFolder.Desktop));
string temp;
foreach (string dir in Dirs)
{ temp = SplitPath(dir); CleanDirs.Add(temp.ToUpper()); }
foreach(var ShowIn in CleanDirs)
{
TreeViewItem TreeViewDirectory = new TreeViewItem();
TreeViewDirectory.Tag = ShowIn;
TreeViewDirectory.Header = ShowIn;
TreeViewDirectory.Focusable = true;
this.treeView.Items.Add(TreeViewDirectory);
}
}
private string SplitPath(string path)
{
string[] temp = path.Split('\\');
return temp[temp.Length - 1];
}
}
使用System.Windows;
使用System.Windows.Controls;
使用System.IO;
使用System.Collections.Generic;
使用制度;
命名空间树视图WithMenu
{
///
///MainWindow.xaml的交互逻辑
///
公共部分类主窗口:窗口
{
公共主窗口()
{
//创建对象和处理程序
初始化组件();
PopTree();
SetMenu();
this.treeView.MouseRightButtonDown+=treeView\u MouseRightButtonDown;
this.menu.MouseLeftButtonDown+=menu\u MouseLeftButtonDown;
}
私有void树查看_MouseRightButtonDown(对象发送器,System.Windows.Input.MouseButtonEventArgs e)
{
//使文件夹可见
this.menu.Visibility=可见性.Visibility;
}
私有void SetMenu()
{
//设置新文件夹的菜单
MenuItem MeItem=新MenuItem();
MeItem.Header=“新建文件夹”;
MeItem.Tag=“新建文件夹”;
菜单项添加(MeItem);
menu.Visibility=Visibility.Hidden;
}
私有无效菜单\u MouseLeftButtonDown(对象发送器,System.Windows.Input.MouseButtonEventArgs e)
{
//创建新文件夹
Directory.CreateDirectory(“”);
}
内部void PopTree()
{
//填充树
List CleanDirs=新列表();
字符串[]Dirs=Directory.GetDirectories(Environment.GetFolderPath(Environment.SpecialFolder.Desktop));
字符串温度;
foreach(Dirs中的字符串dir)
{temp=SplitPath(dir);CleanDirs.Add(temp.ToUpper());}
foreach(在CleanDirs中显示的变量)
{
TreeView项目TreeView目录=新建TreeView项目();
TreeViewDirectory.Tag=ShowIn;
TreeViewDirectory.Header=ShowIn;
TreeViewDirectory.Focusable=true;
this.treeView.Items.Add(TreeViewDirectory);
}
}
专用字符串拆分路径(字符串路径)
{
字符串[]temp=path.Split('\\');
返回温度[温度长度-1];
}
}
}
`使用
SelectedItem
属性从TreeView
访问当前选定的项目,该项目应与您右键单击的项目相同
private void TreeView_MouseRightButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
if (treeView.SelectedItem == null)
return;
var selectedTag = ((TreeViewItem)treeView.SelectedItem).Tag;
// do something with the tag
}
不要手动添加控件(TreeViewItem)。
将集合用作视图模型
从treeView ItemsSource属性绑定到集合。
使用DataTemplate将视图模型上的relavent属性绑定到TreeViewItem控件上的依赖项属性
所有羽化都应该来自Xaml文件