C# 操作文件夹、文件

Form

 namespace FileProperties

 {

     public partial class Form1 : Form

     {

         private string currentFolderPath;

         public Form1()

         {

             InitializeComponent();

         }

         protected void ClearAllFields()

         {

             listBoxFolders.Items.Clear();

             listBoxFiles.Items.Clear();

             textBoxFolder.Text = "";

             textBoxFolder.Text = "";

             textBoxFileName.Text = "";

             textBoxCreationTime.Text = "";

             textBoxLastAccessTime.Text = "";

             textBoxLastWriteTime.Text = "";

             textBoxFileSize.Text = "";

         }

         protected void DisplayFileInfo(string fileFullName)

         {

             FileInfo theFile = new FileInfo(fileFullName);

             if (!theFile.Exists)

                 throw new FileNotFoundException("File not found: " + fileFullName);

             textBoxFileName.Text = theFile.Name;

             textBoxCreationTime.Text = theFile.CreationTime.ToLongTimeString();

             textBoxLastAccessTime.Text = theFile.LastAccessTime.ToLongDateString();

             textBoxLastWriteTime.Text = theFile.LastWriteTime.ToLongDateString();

             textBoxFileSize.Text = theFile.Length + " bytes";

             // enable move, copy, delete buttons

             textBoxNewPath.Text = theFile.FullName;

             textBoxNewPath.Enabled = true;

             buttonCopyTo.Enabled = true;

             buttonDelete.Enabled = true;

             buttonMoveTo.Enabled = true;

         }

         protected void DisplayFolderList(string folderFullName)

         {

             DirectoryInfo theFolder = new DirectoryInfo(folderFullName);

             if (!theFolder.Exists)

                 throw new DirectoryNotFoundException("Folder not found: "

                     + folderFullName);

             ClearAllFields();

             DisableMoveFeatures();

             textBoxFolder.Text = theFolder.FullName;

             currentFolderPath = theFolder.FullName;

             // list all subfolders in folder

             foreach (DirectoryInfo nextFolder in theFolder.GetDirectories())

                 listBoxFolders.Items.Add(nextFolder.Name);

             // list all files in folder

             foreach (FileInfo nextFile in theFolder.GetFiles())

                 listBoxFiles.Items.Add(nextFile.Name);

         }

         protected void OnDisplayButtonClick(object sender, EventArgs e)

         {

             try

             {

                 string folderPath = textBoxInput.Text;

                 DirectoryInfo theFolder = new DirectoryInfo(folderPath);

                 if (theFolder.Exists)

                 {

                     DisplayFolderList(theFolder.FullName);

                     return;

                 }

                 FileInfo theFile = new FileInfo(folderPath);

                 if (theFile.Exists)

                 {

                     DisplayFolderList(theFile.Directory.FullName);

                     int index = listBoxFiles.Items.IndexOf(theFile.Name);

                     listBoxFiles.SetSelected(index, true);

                     return;

                 }

                 throw new FileNotFoundException("There is no file or folder with "

                     + "this name: " + textBoxInput.Text);

             }

             catch (Exception ex)

             {

                 MessageBox.Show(ex.Message);

             }

         }

         void DisableMoveFeatures()

         {

             textBoxNewPath.Text = "";

             textBoxNewPath.Enabled = false;

             buttonCopyTo.Enabled = false;

             buttonDelete.Enabled = false;

             buttonMoveTo.Enabled = false;

         }

         protected void OnListBoxFilesSelected(object sender, EventArgs e)

         {

             try

             {

                 string selectedString = listBoxFiles.SelectedItem.ToString();

                 string fullFileName = Path.Combine(currentFolderPath, selectedString);

                 DisplayFileInfo(fullFileName);

             }

             catch (Exception ex)

             {

                 MessageBox.Show(ex.Message);

             }

         }

         protected void OnListBoxFoldersSelected(object sender, EventArgs e)

         {

             try

             {

                 string selectedString = listBoxFolders.SelectedItem.ToString();

                 string fullPathName = Path.Combine(currentFolderPath, selectedString);

                 DisplayFolderList(fullPathName);

             }

             catch (Exception ex)

             {

                 MessageBox.Show(ex.Message);

             }

         }

         protected void OnUpButtonClick(object sender, EventArgs e)

         {

             try

             {

                 string folderPath = new FileInfo(currentFolderPath).DirectoryName;

                 DisplayFolderList(folderPath);

             }

             catch (Exception ex)

             {

                 MessageBox.Show(ex.Message);

             }

         }

         protected void OnDeleteButtonClick(object sender, EventArgs e)

         {

             try

             {

                 string filePath = Path.Combine(currentFolderPath,

                     textBoxFileName.Text);

                 string query = "Really delete the file\n" + filePath + "?";

                 if (MessageBox.Show(query,

                     "Delete File?", MessageBoxButtons.YesNo) == DialogResult.Yes)

                 {

                     File.Delete(filePath);

                     DisplayFolderList(currentFolderPath);

                 }

             }

             catch (Exception ex)

             {

                 MessageBox.Show("Unable to delete file. The following exception"

                     + " occurred:\n" + ex.Message, "Failed");

             }

         }

         protected void OnMoveButtonClick(object sender, EventArgs e)

         {

             try

             {

                 string filePath = Path.Combine(currentFolderPath,

                     textBoxFileName.Text);

                 string query = "Really move the file\n" + filePath + "\nto "

                     + textBoxNewPath.Text + "?";

                 if (MessageBox.Show(query,

                     "Move File?", MessageBoxButtons.YesNo) == DialogResult.Yes)

                 {

                     File.Move(filePath, textBoxNewPath.Text);

                     DisplayFolderList(currentFolderPath);

                 }

             }

             catch (Exception ex)

             {

                 MessageBox.Show("Unable to move file. The following exception"

                     + " occurred:\n" + ex.Message, "Failed");

             }

         }

         protected void OnCopyButtonClick(object sender, EventArgs e)

         {

             try

             {

                 string filePath = Path.Combine(currentFolderPath,

                     textBoxFileName.Text);

                 string query = "Really copy the file\n" + filePath + "\nto "

                     + textBoxNewPath.Text + "?";

                 if (MessageBox.Show(query,

                     "Copy File?", MessageBoxButtons.YesNo) == DialogResult.Yes)

                 {

                     File.Copy(filePath, textBoxNewPath.Text);

                     DisplayFolderList(currentFolderPath);

                 }

             }

             catch (Exception ex)

             {

                 MessageBox.Show("Unable to copy file. The following exception"

                     + " occurred:\n" + ex.Message, "Failed");

             }

         }

     }

 }

Designer

 namespace FileProperties

 {

     partial class Form1

     {

         /// <summary>

         /// Required designer variable.

         /// </summary>

         private System.ComponentModel.IContainer components = null;

         /// <summary>

         /// Clean up any resources being used.

         /// </summary>

         /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>

         protected override void Dispose(bool disposing)

         {

             if (disposing && (components != null))

             {

                 components.Dispose();

             }

             base.Dispose(disposing);

         }

         #region Windows Form Designer generated code

         /// <summary>

         /// Required method for Designer support - do not modify

         /// the contents of this method with the code editor.

         /// </summary>

         private void InitializeComponent()

         {

             this.groupBox5 = new System.Windows.Forms.GroupBox();

             this.label14 = new System.Windows.Forms.Label();

             this.textBoxNewPath = new System.Windows.Forms.TextBox();

             this.buttonDelete = new System.Windows.Forms.Button();

             this.buttonCopyTo = new System.Windows.Forms.Button();

             this.buttonMoveTo = new System.Windows.Forms.Button();

             this.label3 = new System.Windows.Forms.Label();

             this.textBoxLastAccessTime = new System.Windows.Forms.TextBox();

             this.textBoxLastWriteTime = new System.Windows.Forms.TextBox();

             this.label6 = new System.Windows.Forms.Label();

             this.label1 = new System.Windows.Forms.Label();

             this.label5 = new System.Windows.Forms.Label();

             this.textBoxCreationTime = new System.Windows.Forms.TextBox();

             this.textBoxFileSize = new System.Windows.Forms.TextBox();

             this.label7 = new System.Windows.Forms.Label();

             this.label8 = new System.Windows.Forms.Label();

             this.label2 = new System.Windows.Forms.Label();

             this.label4 = new System.Windows.Forms.Label();

             this.buttonDisplay = new System.Windows.Forms.Button();

             this.textBoxFolder = new System.Windows.Forms.TextBox();

             this.buttonUp = new System.Windows.Forms.Button();

             this.textBoxInput = new System.Windows.Forms.TextBox();

             this.textBoxFileName = new System.Windows.Forms.TextBox();

             this.groupBox2 = new System.Windows.Forms.GroupBox();

             this.listBoxFiles = new System.Windows.Forms.ListBox();

             this.listBoxFolders = new System.Windows.Forms.ListBox();

             this.groupBox1 = new System.Windows.Forms.GroupBox();

             this.groupBox5.SuspendLayout();

             this.groupBox2.SuspendLayout();

             this.groupBox1.SuspendLayout();

             this.SuspendLayout();

             //

             // groupBox5

             //

             this.groupBox5.Controls.Add(this.label14);

             this.groupBox5.Controls.Add(this.textBoxNewPath);

             this.groupBox5.Controls.Add(this.buttonDelete);

             this.groupBox5.Controls.Add(this.buttonCopyTo);

             this.groupBox5.Controls.Add(this.buttonMoveTo);

             this.groupBox5.Location = new System.Drawing.Point(, );

             this.groupBox5.Name = "groupBox5";

             this.groupBox5.Size = new System.Drawing.Size(, );

             this.groupBox5.TabIndex = ;

             this.groupBox5.TabStop = false;

             this.groupBox5.Text = "Move, Delete or Copy File";

             //

             // label14

             //

             this.label14.Location = new System.Drawing.Point(, );

             this.label14.Name = "label14";

             this.label14.Size = new System.Drawing.Size(, );

             this.label14.TabIndex = ;

             this.label14.Text = "New Location";

             //

             // textBoxNewPath

             //

             this.textBoxNewPath.Location = new System.Drawing.Point(, );

             this.textBoxNewPath.Name = "textBoxNewPath";

             this.textBoxNewPath.Size = new System.Drawing.Size(, );

             this.textBoxNewPath.TabIndex = ;

             //

             // buttonDelete

             //

             this.buttonDelete.Location = new System.Drawing.Point(, );

             this.buttonDelete.Name = "buttonDelete";

             this.buttonDelete.Size = new System.Drawing.Size(, );

             this.buttonDelete.TabIndex = ;

             this.buttonDelete.Text = "Delete";

             this.buttonDelete.Click += new System.EventHandler(this.OnDeleteButtonClick);

             //

             // buttonCopyTo

             //

             this.buttonCopyTo.Location = new System.Drawing.Point(, );

             this.buttonCopyTo.Name = "buttonCopyTo";

             this.buttonCopyTo.Size = new System.Drawing.Size(, );

             this.buttonCopyTo.TabIndex = ;

             this.buttonCopyTo.Text = "Copy To";

             this.buttonCopyTo.Click += new System.EventHandler(this.OnCopyButtonClick);

             //

             // buttonMoveTo

             //

             this.buttonMoveTo.Location = new System.Drawing.Point(, );

             this.buttonMoveTo.Name = "buttonMoveTo";

             this.buttonMoveTo.Size = new System.Drawing.Size(, );

             this.buttonMoveTo.TabIndex = ;

             this.buttonMoveTo.Text = "Move To";

             this.buttonMoveTo.Click += new System.EventHandler(this.OnMoveButtonClick);

             //

             // label3

             //

             this.label3.Location = new System.Drawing.Point(, );

             this.label3.Name = "label3";

             this.label3.Size = new System.Drawing.Size(, );

             this.label3.TabIndex = ;

             this.label3.Text = "Creation time";

             //

             // textBoxLastAccessTime

             //

             this.textBoxLastAccessTime.Enabled = false;

             this.textBoxLastAccessTime.Location = new System.Drawing.Point(, );

             this.textBoxLastAccessTime.Name = "textBoxLastAccessTime";

             this.textBoxLastAccessTime.Size = new System.Drawing.Size(, );

             this.textBoxLastAccessTime.TabIndex = ;

             //

             // textBoxLastWriteTime

             //

             this.textBoxLastWriteTime.Enabled = false;

             this.textBoxLastWriteTime.Location = new System.Drawing.Point(, );

             this.textBoxLastWriteTime.Name = "textBoxLastWriteTime";

             this.textBoxLastWriteTime.Size = new System.Drawing.Size(, );

             this.textBoxLastWriteTime.TabIndex = ;

             //

             // label6

             //

             this.label6.Location = new System.Drawing.Point(, );

             this.label6.Name = "label6";

             this.label6.Size = new System.Drawing.Size(, );

             this.label6.TabIndex = ;

             this.label6.Text = "Last modification time";

             //

             // label1

             //

             this.label1.Location = new System.Drawing.Point(, );

             this.label1.Name = "label1";

             this.label1.Size = new System.Drawing.Size(, );

             this.label1.TabIndex = ;

             this.label1.Text = "Enter name of folder to be examined and click Display";

             //

             // label5

             //

             this.label5.Location = new System.Drawing.Point(, );

             this.label5.Name = "label5";

             this.label5.Size = new System.Drawing.Size(, );

             this.label5.TabIndex = ;

             this.label5.Text = "Last access time";

             //

             // textBoxCreationTime

             //

             this.textBoxCreationTime.Enabled = false;

             this.textBoxCreationTime.Location = new System.Drawing.Point(, );

             this.textBoxCreationTime.Name = "textBoxCreationTime";

             this.textBoxCreationTime.Size = new System.Drawing.Size(, );

             this.textBoxCreationTime.TabIndex = ;

             //

             // textBoxFileSize

             //

             this.textBoxFileSize.Enabled = false;

             this.textBoxFileSize.Location = new System.Drawing.Point(, );

             this.textBoxFileSize.Name = "textBoxFileSize";

             this.textBoxFileSize.Size = new System.Drawing.Size(, );

             this.textBoxFileSize.TabIndex = ;

             //

             // label7

             //

             this.label7.Location = new System.Drawing.Point(, );

             this.label7.Name = "label7";

             this.label7.Size = new System.Drawing.Size(, );

             this.label7.TabIndex = ;

             this.label7.Text = "File Size";

             //

             // label8

             //

             this.label8.Location = new System.Drawing.Point(, );

             this.label8.Name = "label8";

             this.label8.Size = new System.Drawing.Size(, );

             this.label8.TabIndex = ;

             this.label8.Text = "Folders";

             //

             // label2

             //

             this.label2.Location = new System.Drawing.Point(, );

             this.label2.Name = "label2";

             this.label2.Size = new System.Drawing.Size(, );

             this.label2.TabIndex = ;

             this.label2.Text = "Files";

             //

             // label4

             //

             this.label4.Location = new System.Drawing.Point(, );

             this.label4.Name = "label4";

             this.label4.Size = new System.Drawing.Size(, );

             this.label4.TabIndex = ;

             this.label4.Text = "File name";

             //

             // buttonDisplay

             //

             this.buttonDisplay.Location = new System.Drawing.Point(, );

             this.buttonDisplay.Name = "buttonDisplay";

             this.buttonDisplay.Size = new System.Drawing.Size(, );

             this.buttonDisplay.TabIndex = ;

             this.buttonDisplay.Text = "Display";

             this.buttonDisplay.Click += new System.EventHandler(this.OnDisplayButtonClick);

             //

             // textBoxFolder

             //

             this.textBoxFolder.Enabled = false;

             this.textBoxFolder.Location = new System.Drawing.Point(, );

             this.textBoxFolder.Name = "textBoxFolder";

             this.textBoxFolder.Size = new System.Drawing.Size(, );

             this.textBoxFolder.TabIndex = ;

             //

             // buttonUp

             //

             this.buttonUp.Location = new System.Drawing.Point(, );

             this.buttonUp.Name = "buttonUp";

             this.buttonUp.Size = new System.Drawing.Size(, );

             this.buttonUp.TabIndex = ;

             this.buttonUp.Text = "Up";

             this.buttonUp.Click += new System.EventHandler(this.OnUpButtonClick);

             //

             // textBoxInput

             //

             this.textBoxInput.Location = new System.Drawing.Point(, );

             this.textBoxInput.Name = "textBoxInput";

             this.textBoxInput.Size = new System.Drawing.Size(, );

             this.textBoxInput.TabIndex = ;

             //

             // textBoxFileName

             //

             this.textBoxFileName.Enabled = false;

             this.textBoxFileName.Location = new System.Drawing.Point(, );

             this.textBoxFileName.Name = "textBoxFileName";

             this.textBoxFileName.Size = new System.Drawing.Size(, );

             this.textBoxFileName.TabIndex = ;

             //

             // groupBox2

             //

             this.groupBox2.Controls.Add(this.textBoxLastAccessTime);

             this.groupBox2.Controls.Add(this.textBoxCreationTime);

             this.groupBox2.Controls.Add(this.textBoxLastWriteTime);

             this.groupBox2.Location = new System.Drawing.Point(, );

             this.groupBox2.Name = "groupBox2";

             this.groupBox2.Size = new System.Drawing.Size(, );

             this.groupBox2.TabIndex = ;

             this.groupBox2.TabStop = false;

             this.groupBox2.Text = "Details of Selected File";

             //

             // listBoxFiles

             //

             this.listBoxFiles.Location = new System.Drawing.Point(, );

             this.listBoxFiles.Name = "listBoxFiles";

             this.listBoxFiles.Size = new System.Drawing.Size(, );

             this.listBoxFiles.TabIndex = ;

             this.listBoxFiles.SelectedIndexChanged += new System.EventHandler(this.OnListBoxFilesSelected);

             //

             // listBoxFolders

             //

             this.listBoxFolders.Location = new System.Drawing.Point(, );

             this.listBoxFolders.Name = "listBoxFolders";

             this.listBoxFolders.Size = new System.Drawing.Size(, );

             this.listBoxFolders.TabIndex = ;

             this.listBoxFolders.SelectedIndexChanged += new System.EventHandler(this.OnListBoxFoldersSelected);

             //

             // groupBox1

             //

             this.groupBox1.Controls.Add(this.groupBox5);

             this.groupBox1.Controls.Add(this.label6);

             this.groupBox1.Controls.Add(this.label5);

             this.groupBox1.Controls.Add(this.label3);

             this.groupBox1.Controls.Add(this.textBoxFileSize);

             this.groupBox1.Controls.Add(this.label7);

             this.groupBox1.Controls.Add(this.textBoxFileName);

             this.groupBox1.Controls.Add(this.label4);

             this.groupBox1.Controls.Add(this.textBoxFolder);

             this.groupBox1.Controls.Add(this.groupBox2);

             this.groupBox1.Location = new System.Drawing.Point(, );

             this.groupBox1.Name = "groupBox1";

             this.groupBox1.Size = new System.Drawing.Size(, );

             this.groupBox1.TabIndex = ;

             this.groupBox1.TabStop = false;

             this.groupBox1.Text = "Contents of folder";

             //

             // Form1

             //

             this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);

             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;

             this.ClientSize = new System.Drawing.Size(, );

             this.Controls.Add(this.label1);

             this.Controls.Add(this.label8);

             this.Controls.Add(this.label2);

             this.Controls.Add(this.buttonDisplay);

             this.Controls.Add(this.buttonUp);

             this.Controls.Add(this.textBoxInput);

             this.Controls.Add(this.listBoxFiles);

             this.Controls.Add(this.listBoxFolders);

             this.Controls.Add(this.groupBox1);

             this.Name = "Form1";

             this.Text = "FilePropertiesAndMovement Sample";

             this.groupBox5.ResumeLayout(false);

             this.groupBox5.PerformLayout();

             this.groupBox2.ResumeLayout(false);

             this.groupBox2.PerformLayout();

             this.groupBox1.ResumeLayout(false);

             this.groupBox1.PerformLayout();

             this.ResumeLayout(false);

             this.PerformLayout();

         }

         #endregion

         private System.Windows.Forms.GroupBox groupBox5;

         private System.Windows.Forms.Label label14;

         private System.Windows.Forms.TextBox textBoxNewPath;

         private System.Windows.Forms.Button buttonDelete;

         private System.Windows.Forms.Button buttonCopyTo;

         private System.Windows.Forms.Button buttonMoveTo;

         private System.Windows.Forms.Label label3;

         private System.Windows.Forms.TextBox textBoxLastAccessTime;

         private System.Windows.Forms.TextBox textBoxLastWriteTime;

         private System.Windows.Forms.Label label6;

         private System.Windows.Forms.Label label1;

         private System.Windows.Forms.Label label5;

         private System.Windows.Forms.TextBox textBoxCreationTime;

         private System.Windows.Forms.TextBox textBoxFileSize;

         private System.Windows.Forms.Label label7;

         private System.Windows.Forms.Label label8;

         private System.Windows.Forms.Label label2;

         private System.Windows.Forms.Label label4;

         private System.Windows.Forms.Button buttonDisplay;

         private System.Windows.Forms.TextBox textBoxFolder;

         private System.Windows.Forms.Button buttonUp;

         private System.Windows.Forms.TextBox textBoxInput;

         private System.Windows.Forms.TextBox textBoxFileName;

         private System.Windows.Forms.GroupBox groupBox2;

         private System.Windows.Forms.ListBox listBoxFiles;

         private System.Windows.Forms.ListBox listBoxFolders;

         private System.Windows.Forms.GroupBox groupBox1;

     }

 }

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