Application like "Explorer": on the left TreeView, and by clicking on the directory on the left in the ListView should display the file name, extension and size. I stumbled upon some example in the internet, tried to do it for my own, but the data stubbornly did not want to be displayed. Help me please.
using System; using System.IO; using System.Windows; using System.Windows.Controls; namespace lab1 { public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } private object dummyNode = null; public string SelectedImagePath { get; set; } private void Window_Loaded(object sender, RoutedEventArgs e) { foreach (string s in Directory.GetLogicalDrives()) { TreeViewItem item = new TreeViewItem(); item.Header = s; item.Tag = s; item.FontWeight = FontWeights.Normal; item.Items.Add(dummyNode); item.Expanded += new RoutedEventHandler(folder_Expanded); folders.Items.Add(item); } } void folder_Expanded(object sender, RoutedEventArgs e) { TreeViewItem item = (TreeViewItem)sender; if (item.Items.Count == 1 && item.Items[0] == dummyNode) { item.Items.Clear(); try { foreach (string s in Directory.GetDirectories(item.Tag.ToString())) { TreeViewItem subitem = new TreeViewItem(); subitem.Header = s.Substring(s.LastIndexOf("\\") + 1); subitem.Tag = s; subitem.FontWeight = FontWeights.Normal; subitem.Items.Add(dummyNode); subitem.Expanded += new RoutedEventHandler(folder_Expanded); item.Items.Add(subitem); } } catch (Exception) { } } } private void folders_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e) { TreeView tree = (TreeView)sender; TreeViewItem temp = ((TreeViewItem)tree.SelectedItem); if (temp == null) return; SelectedImagePath = ""; string temp1 = ""; string temp2 = ""; while (true) { temp1 = temp.Header.ToString(); if (temp1.Contains(@"\")) { temp2 = ""; } SelectedImagePath = temp1 + temp2 + SelectedImagePath; if (temp.Parent.GetType().Equals(typeof(TreeView))) { break; } temp = ((TreeViewItem)temp.Parent); temp2 = @"\"; } try { DirectoryInfo dir = new DirectoryInfo(SelectedImagePath); FileInfo[] content = dir.GetFiles(); foreach (FileInfo f in content) { MyFile file = new MyFile(); file.Name = f.Name; file.Extension = f.Extension; file.Length = f.Length.ToString(); ((System.Collections.ArrayList)files.Resources["fileArray"]).Add(file); } } catch (Exception) { } } } } <Window x:Class="lab1.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:col="clr-namespace:System.Collections;assembly=mscorlib" xmlns:local="clr-namespace:lab1" mc:Ignorable="d" Title="MainWindow" Height="350" Width="525" Loaded="Window_Loaded"> <Grid> <Grid.RowDefinitions> <RowDefinition/> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition/> <ColumnDefinition/> </Grid.ColumnDefinitions> <TreeView Grid.Column="0" x:Name="folders" SelectedItemChanged="folders_SelectedItemChanged" Width="Auto" Background="#FFFFFFFF" BorderBrush="#FFFFFFFF" Foreground="#FFFFFFFF"/> <ListView Grid.Column="1" x:Name="files" ItemsSource="{DynamicResource ResourceKey='fileArray'}"> <ListView.View> <GridView> <GridViewColumn Header="Name" Width="70" DisplayMemberBinding="{Binding Path=fileName}"></GridViewColumn> <GridViewColumn Header="Type" Width="70" DisplayMemberBinding="{Binding Path=fileExtension}"></GridViewColumn> <GridViewColumn Header="Size" Width="70" DisplayMemberBinding="{Binding Path=fileLength}"></GridViewColumn> </GridView> </ListView.View> <ListView.Resources> <col:ArrayList x:Key="fileArray"></col:ArrayList> </ListView.Resources> </ListView> </Grid> </Window> namespace lab1 { class MyFile { public string Name { get; set; } public string Extension { get; set; } public string Length { get; set; } } } 