WPF实现简单的文件浏览界面
使用WPF编写文件浏览界面，做的比较简单。因为没有找到合适的第三方库，所以自己手动写一个简单的先试试。没有使用XAML，纯C#代码实现。主要使用的控件Grid， TreeView， ListView，GridSplitter。
使用了两个简单的文件夹图标，使用了Binding，（这个我也不是特别熟，但是勉强用上了），编写了几个简单的类。参考了网上的一些资料和书籍，先总结如下：
01、ImagedTreeViewItem类，继承自TreeViewItem
using System;
using System.Windows;
using System.Windows.Input;
using System.Windows.Controls;
using System.Windows.Media;
namespace LocalFileManager
{
///
/// 简单的Item类，选中和不被选中用两种图标表示
/// 内置一个StackPanel，包括一个TextBlock显示文本，图片
///
public class ImagedTreeViewItem : TreeViewItem
{
TextBlock text;
Image img;
ImageSource srcSelected, srcUnselected;
///
/// Constructor makes stack with image and text
///
public ImagedTreeViewItem()
{
StackPanel stack = new StackPanel();
stack.Orientation = Orientation.Horizontal;
Header = stack;
img = new Image();
img.VerticalAlignment = VerticalAlignment.Center;
img.Margin = new Thickness(0, 0, 2, 0);
stack.Children.Add(img);
text = new TextBlock();
text.VerticalAlignment = VerticalAlignment.Center;
stack.Children.Add(text);
}
///
/// Public porperty for text and images
///
public string Text
{
get { return text.Text; }
set { text.Text = value; }
}
public ImageSource SelectedImage
{
get { return srcSelected; }
set
{
srcSelected = value;
if(IsSelected)
{
img.Source = srcSelected;
}
}//end of set
}//end of public Imagesource SelectedItem
public ImageSource UnselectedImage
{
get { return srcUnselected; }
set
{
srcUnselected = value;
if(!IsSelected)
{
img.Source = srcUnselected;
}
}//end of set
}//end of public ImageSource UnselectedImage
///
/// Event override to set image
///
///
protected override void OnSelected(RoutedEventArgs e)
{
base.OnSelected(e);
img.Source = srcSelected;
}
protected override void OnUnselected(RoutedEventArgs e)
{
base.OnUnselected(e);
img.Source = srcUnselected;
}
}
}
02、文件夹列表item，继承自ImagedTreeViewItem
using System;
using System.IO;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Controls;
using System.Windows.Media.Imaging;
namespace LocalFileManager
{
///
/// 文件夹列表item，继承自ImagedTreeViewItem
///
public class DirectoryTreeViewItem : ImagedTreeViewItem
{
DirectoryInfo dir;
//Constructor requires DirectoryInfo object
public DirectoryTreeViewItem(DirectoryInfo pDir)
{
this.dir = pDir;
Text = pDir.Name;
SelectedImage = new BitmapImage(new Uri("pack://application:,,/img/OPEN.BMP"));
UnselectedImage = new BitmapImage(new Uri("pack://application:,,/img/CLOSED.BMP"));
}
///
/// public property to obtain DirectoryInfo
///
public DirectoryInfo DirInfo
{
get { return dir; }
}
///
/// public mathod to populate wtih items
///
public void Populate()
{
DirectoryInfo[] dirs;
try
{
dirs = dir.GetDirectories();
}
catch
{
return;
}
foreach(DirectoryInfo dirChild in dirs)
{
Items.Add(new DirectoryTreeViewItem(dirChild));
}
}
///
/// event override to populate subitem
///
///
protected override void OnExpanded(RoutedEventArgs e)
{
base.OnExpanded(e);
foreach(object obj in Items)
{
DirectoryTreeViewItem item = obj as DirectoryTreeViewItem;
item.Populate();
}
}
}
}
03、路径树，继承自TreeView
using System;
using System.IO;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Controls;
using System.Windows.Media.Imaging;
namespace LocalFileManager
{
///
/// 路径树，继承自TreeView
///
public class DirectoryTreeView : TreeView
{
///
/// Constructor builds
///
public DirectoryTreeView()
{
RefreshTree();
}
public void RefreshTree()
{
BeginInit();
Items.Clear();
//Obtain the disk drivers
DriveInfo[] drivers = DriveInfo.GetDrives();
foreach(DriveInfo drive in drivers)
{
char chDrive = drive.Name.ToUpper()[0];
DirectoryTreeViewItem item = new DirectoryTreeViewItem(drive.RootDirectory);
//display ...
if(chDrive != 'A' && chDrive != 'B' && drive.IsReady && drive.VolumeLabel.Length > 0)
{
item.Text = string.Format("{0} ({1})", drive.VolumeLabel, drive.Name);
}
else
{
item.Text = string.Format("{0} ({1})", drive.DriveType, drive.Name);
}
Items.Add(item);
if(chDrive != 'A' && chDrive != 'B' && drive.IsReady)
{
item.Populate();
}
}
EndInit();
}
}
}
04、文件信息类，自定义了几个需要显示的文件的属性
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace LocalFileManager
{
///
/// 自定义的文件信息类，用于绑定到ListViewItem中
///
public class FileInfoDemo
{
string strFileName;
string strFileType;
string strFileSize;
string _lastModifyTime;
string _filePath;
///
/// 文件名
///
public string FileName
{
get { return strFileName; }
set { strFileName = value; }
}
///
/// 文件类型
///
public string FileType
{
get { return strFileType; }
set { strFileType = value; }
}
///
/// 文件大小
///
public string Size
{
get { return strFileSize; }
set { strFileSize = value; }
}
///
/// 最后一次修改时间
///
public string LastModifyTime
{
get { return _lastModifyTime; }
set { _lastModifyTime = value; }
}
///
/// 文件所在路径
///
public string FilePath
{
get { return _filePath; }
set { _filePath = value; }
}
}
}
05、主界面
ListView lvFileInfo = new ListView();
public LocalFileManager()
{
Title = "LocalFileManager";
//网格布局
Grid grid = new Grid();
Content = grid;
//定义3列
ColumnDefinition coldef = new ColumnDefinition();
coldef.Width = new GridLength(50, GridUnitType.Star);
grid.ColumnDefinitions.Add(coldef);
coldef = new ColumnDefinition();
coldef.Width = GridLength.Auto;
grid.ColumnDefinitions.Add(coldef);
coldef = new ColumnDefinition();
coldef.Width = new GridLength(50, GridUnitType.Star);
grid.ColumnDefinitions.Add(coldef);
//定义文件夹树
DirectoryTreeView mainTree = new DirectoryTreeView();
mainTree.SelectedItemChanged += MainTree_SelectedItemChanged;
grid.Children.Add(mainTree);
Grid.SetColumn(mainTree, 0);
//分隔条
GridSplitter splite = new GridSplitter();
splite.Width = 6;
splite.ResizeBehavior = GridResizeBehavior.PreviousAndNext;
grid.Children.Add(splite);
Grid.SetColumn(splite, 1);
//全局ListView
lvFileInfo = new ListView();
grid.Children.Add(lvFileInfo);
Grid.SetColumn(lvFileInfo, 2);
//定义字段，绑定到文件信息类中
GridView myview = new GridView();
lvFileInfo.View = myview;
GridViewColumn mycolun = new GridViewColumn();
mycolun.Header = "文件名";
mycolun.Width = 80;
mycolun.DisplayMemberBinding = new Binding("FileName");
myview.Columns.Add(mycolun);
mycolun = new GridViewColumn();
mycolun.Header = "类型";
mycolun.Width = 80;
mycolun.DisplayMemberBinding = new Binding("FileType");
myview.Columns.Add(mycolun);
mycolun = new GridViewColumn();
mycolun.Header = "大小";
mycolun.Width = 80;
mycolun.DisplayMemberBinding = new Binding("Size");
myview.Columns.Add(mycolun);
mycolun = new GridViewColumn();
mycolun.Header = "最后修改";
mycolun.Width = 80;
mycolun.DisplayMemberBinding = new Binding("LastModifyTime");
myview.Columns.Add(mycolun);
mycolun = new GridViewColumn();
mycolun.Header = "路径";
mycolun.Width = 80;
mycolun.DisplayMemberBinding = new Binding("FilePath");
myview.Columns.Add(mycolun);
//右键菜单添加测试
ContextMenu myContext = new ContextMenu();
MenuItem myMUItem = new MenuItem();
myMUItem.Header = "下载";
myMUItem.Name = "Menu01";
myContext.Items.Add(myMUItem);
myMUItem = new MenuItem();
myMUItem.Header = "查看";
myMUItem.Name = "FileLook";
myMUItem.Click += FileLook_Click;
myContext.Items.Add(myMUItem);
myMUItem = new MenuItem();
myMUItem.Header = "刷新";
myMUItem.Name = "Menu03";
myContext.Items.Add(myMUItem);
myMUItem = new MenuItem();
myMUItem.Header = "重命名";
myMUItem.Name = "Menu04";
myContext.Items.Add(myMUItem);
myMUItem = new MenuItem();
myMUItem.Header = "新建文件夹";
myMUItem.Name = "Menu05";
myContext.Items.Add(myMUItem);
lvFileInfo.ContextMenu = myContext;
}06、当文件夹选择改变时，调用事件查找选择的文件夹下的文件，并显示到ListView中
///
/// 文件夹树改变时，查找文件夹下是否存在文件，如果存在，则显示
///
///
///
private void MainTree_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs完成代码请见：https://download.csdn.net/download/kakaluote81/10418964
水平有限，欢迎指正批评。