公司代码阅读笔记 记于 2013-09-23

标签: `代码` `C#` `WPF`



**遍历文件夹下任意类型的文件**



```cs

    Loaded += delegate {

    

        var arr = "*.png|*.jpg|*.jpeg|*.gif".Split('|').SelectMany(filter => new DirectoryInfo(Environment.GetFolderPath(Environment.SpecialFolder.MyPictures)).GetFiles(filter, SearchOption.AllDirectories)).ToArray();



    };

```



---



```cs



using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

using System.Windows.Threading;



namespace CFileWall

{

    /// 

    /// LoadingUserControl.xaml 的交互逻辑

    /// 

    public partial class LoadingUserControl : UserControl

    {

        public event EventHandler LoadingCompleted;



        public LoadingUserControl()

        {

            InitializeComponent();

            Loaded += new RoutedEventHandler(LoadingUserControl_Loaded);

        }



        void LoadingUserControl_Loaded(object sender, RoutedEventArgs e)

        {

            //启动新的线程加载文件

            new System.Threading.Thread(new System.Threading.ParameterizedThreadStart(delegate

            {

                int index = 1;

                if (App.Files == null) return;

                foreach (var file in App.Files)

                {

                    this.Dispatcher.Invoke((Action)delegate

                    {

                        Console.WriteLine(index);



                        textBlock_LoadingTips.Text = index.ToString() + @"/" + App.Files.Length.ToString();

                        loadingProgress.Value = (double)index / App.Files.Length * 100;

                    }, null);



                    System.Threading.Thread.Sleep(100);



                    index++;

                }

                if (LoadingCompleted != null)

                {

                    this.Dispatcher.BeginInvoke((Action)delegate

                    {

                        DispatcherTimer dt = new DispatcherTimer();

                        dt.Interval = TimeSpan.FromSeconds(1);

                        dt.Tick += delegate

                        {

                            dt.Stop();

                            LoadingCompleted(this, null);

                        };

                        dt.Start();

                    }, null);

                }

            })).Start();

        }

    }

}





```



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