如何使用C＃.NET以编程方式清除回收站

本文概述

清洁回收站
完成课程

无论是什么原因, 至少出于学习目的(或者在你正在维护应用程序的设计中), 用于清理回收站的此代码片段确实非常有用且易于实现。循序渐进, 只需几分钟, 你就可以准备清洁回收站。
清洁回收站首先, 在类顶部包含对useop语句的对InteropServices的引用, 以便稍后在类中使用DllImport方法。

using System.Runtime.InteropServices; using System.Windows.Forms; // As we are using windows forms, we use this namespace to create a dialog to confirm our action

我们将创建一个枚举变量, 该变量将包含我们的clear函数期望作为参数的代码。

enum RecycleFlags : uint { SHRB_NOCONFIRMATION = 0x00000001, // Don't ask confirmationSHRB_NOPROGRESSUI = 0x00000002, // Don't show any windows dialogSHRB_NOSOUND = 0x00000004 // Don't make sound, ninja mode enabled :v}

然后, 我们将创建清除回收站的函数, 我们需要导入Shell32.dll, 因此为了在.dll中使用SHEmptyRecycleBin函数, 我们在System.Runtime.InteropServices命名空间之前添加了该函数, 现在你只需要声明它。

[DllImport("Shell32.dll", CharSet = CharSet.Unicode)]static extern uint SHEmptyRecycleBin(IntPtr hwnd, string pszRootPath, RecycleFlags dwFlags);

既然已经声明了SHEmptyRecycleBin方法, 我们就可以使用它最终清理回收站。我们将添加一个触发功能的按钮, 并使用以下代码创建一个确认对话框, 最后清理回收站。

// On click event of the buttonprivate void button1_Click(object sender, EventArgs e){DialogResult result; result = MessageBox.Show("Are you sure you want to delete all the items in recycle bin", "Clear recycle bin", MessageBoxButtons.YesNo); // If accepted, continue with the cleaningif (result == DialogResult.Yes){try{// Execute the method with the required parametersuint IsSuccess = SHEmptyRecycleBin(IntPtr.Zero, null, RecycleFlags.SHRB_NOCONFIRMATION); MessageBox.Show("The recycle bin has been succesfully recycled !", "Clear recycle bin", MessageBoxButtons.OK, MessageBoxIcon.Information); }catch (Exception ex){// Handle exceptionsMessageBox.Show("The recycle bin couldn't be recycled" + ex.Message, "Clear recycle bin", MessageBoxButtons.OK, MessageBoxIcon.Stop); }}}

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完成课程这是你班级的样子, 请注意, 这是一个空的winforms项目, 假定你只有一个带有button1标识符的按钮, 并且在单击该按钮时会清理回收站：

using System; using System.Windows.Forms; using System.Runtime.InteropServices; namespace EmptyRecycleBin{public partial class Form1 : Form{enum RecycleFlags : int{SHRB_NOCONFIRMATION = 0x00000001, // Don't ask for confirmationSHRB_NOPROGRESSUI = 0x00000001, // Don't show progressSHRB_NOSOUND = 0x00000004 // Don't make sound when the action is executed}[DllImport("Shell32.dll", CharSet = CharSet.Unicode)]static extern uint SHEmptyRecycleBin(IntPtr hwnd, string pszRootPath, RecycleFlags dwFlags); public Form1(){InitializeComponent(); }private void Form1_Load(object sender, EventArgs e){}private void button1_Click(object sender, EventArgs e){DialogResult result; result = MessageBox.Show("Are you sure you want to delete all the items in recycle bin", "Clear recycle bin", MessageBoxButtons.YesNo); // If accepted, continue with the cleaningif (result == DialogResult.Yes){try{// Execute the method with the required parametersuint IsSuccess = SHEmptyRecycleBin(IntPtr.Zero, null, RecycleFlags.SHRB_NOCONFIRMATION); MessageBox.Show("The recycle bin has been succesfully recycled !", "Clear recycle bin", MessageBoxButtons.OK, MessageBoxIcon.Information); }catch (Exception ex){// Handle exceptionsMessageBox.Show("The recycle bin couldn't be recycled" + ex.Message, "Clear recycle bin", MessageBoxButtons.OK, MessageBoxIcon.Stop); }}}}}

【如何使用C＃.NET以编程方式清除回收站】玩得开心！