.net没有提供文件夹的拷贝,今天写了一个:
效果如图
private void ultraButton1_Click(object sender, System.EventArgs e) { if(!System.IO.Directory.Exists(txtSourceDirectory.Text)) { MessageBox.Show("源文件夹不存在","",MessageBoxButtons.OK,MessageBoxIcon.Warning); txtSourceDirectory.Focus(); return; } if(!System.IO.Directory.Exists(txtAimDirectory.Text)) { MessageBox.Show("目标文件夹不正确","",MessageBoxButtons.OK,MessageBoxIcon.Warning); txtAimDirectory.Focus(); return ; } cdw.OnCopyFile+=new Nexsmart.MMS.FileManager.Class.CopyDirectoryWorker.CopyFileEventHandler(cdw_OnCopyFile); cdw.WorkOvered+=new Nexsmart.MMS.FileManager.Class.CopyDirectoryWorker.WorkOverEventHandler(cdw_WorkOvered);
cdw.SourceDirectory=this.txtSourceDirectory.Text; cdw.AimDirectory=this.txtAimDirectory.Text; btnControl.Visible=true; btnControl.Text="暂停拷贝";
btnAbort.Visible=true;
this.timer1.Enabled=true; this.timer1.Start(); thread.Start();// }
private void cdw_OnCopyFile(long lngHad, long lngCount, string strShow) { this.pbarDirectory.Maximum=(int)lngCount; this.pbarDirectory.Value=(int)lngHad;
lblShow.Text=strShow;
this.lblCount.Text=Convert.ToString(lngCount/1024)+" KB"; this.lblHad.Text=Convert.ToString(lngHad/1024)+" KB"; }
private void cdw_WorkOvered() { this.pbarDirectory.Value=0; this.pbarDirectory.Visible=false; this.timer1.Stop(); this.lblShow.Text=""; this.Elapse=0; MessageBox.Show("复制完成","",MessageBoxButtons.OK,MessageBoxIcon.Information); }
private void timer1_Tick(object sender, System.EventArgs e) { ++Elapse; lblTime.Text=Elapse.ToString()+" 秒"; }
实现类
public class CopyDirectoryWorker { public delegate void CopyFileEventHandler(long lngHad,long lngCount,string strShow);//定义一个委托 public event CopyFileEventHandler OnCopyFile;//定义一个事件,在Copy文件时触发 public delegate void WorkOverEventHandler();//定义一个委托 public event WorkOverEventHandler WorkOvered;//定义一个事件,在Copy文件完成时触发
public CopyDirectoryWorker() { // // TODO: 在此处添加构造函数逻辑 // }
private string _sourceDirectory; public string SourceDirectory { get { return _sourceDirectory; } set { _sourceDirectory=value; } }
private string _aimDirectory; public string AimDirectory { get { return _aimDirectory; } set { _aimDirectory=value; } }
/// <summary> /// 递归拷贝文件,把源目录下所有文件和文件夹拷贝到目标目录 /// </summary> /// <param name="sourceDirectory">源路径</param> /// <param name="aimDirectory">目标路径</param> public void CopyFiles() { if(!System.IO.Directory.Exists(SourceDirectory)&!System.IO.Directory.Exists(AimDirectory)) // return ; throw new Exception("文件夹不存在");
string strTemp=SourceDirectory.Substring(SourceDirectory.LastIndexOf(@"/")); string strRealAimDirecotry=AimDirectory+strTemp;// System.IO.Path.Combine(aimDirectory,strTemp); if(!System.IO.Directory.Exists(strRealAimDirecotry)) System.IO.Directory.CreateDirectory(strRealAimDirecotry); RecursionCopyFiles(SourceDirectory,strRealAimDirecotry);//调用真正文件夹复制程序
WorkOvered();//触发事件,调用完成复制后的处理程序 }
/// <summary> /// 二进制读取文件,任何文件 /// </summary> private void CopyFile(string SourceFile,string AimFile) { byte[] bytTemp=new byte[4096];//字节数组
long lngHad=0; long lngCount; int z=5000; //源文件流 System.IO.FileStream fsSource=new System.IO.FileStream(SourceFile,System.IO.FileMode.Open,System.IO.FileAccess.Read,System.IO.FileShare.Read,4); //二进制读取器 System.IO.BinaryReader bRead=new System.IO.BinaryReader(fsSource); //定位源文件流的头部 bRead.BaseStream.Seek(0,System.IO.SeekOrigin.Begin); if(fsSource.Position>0) fsSource.Position=0;
lngCount=fsSource.Length;
if(System.IO.File.Exists(AimFile)) System.IO.File.Delete(AimFile);
//目标文件流 System.IO.FileStream fsAim=new System.IO.FileStream(AimFile,System.IO.FileMode.CreateNew,System.IO.FileAccess.Write,System.IO.FileShare.Write,4); //二进制写入器 System.IO.BinaryWriter bWrite=new System.IO.BinaryWriter(fsAim);
while(z>=4096) { z=(int)bRead.Read(bytTemp,0,bytTemp.Length);//读入字节数组,返回读取的字节数量,如果小于4096,则到了文件尾 bWrite.Write(bytTemp,0,bytTemp.Length);//从字节数组写入目标文件流 lngHad+=z; string show="从"+SourceFile+"到"+AimFile; OnCopyFile(lngHad,lngCount,show);//触发事件 来控制主线程 这里是进度条和已完成复制文件字节显示 }
bWrite.Flush();//清理缓存区
bWrite.Close(); bRead.Close();
fsAim.Close(); fsSource.Close();
} /// <summary> /// 递归拷贝文件,把源目录下所有文件和文件夹拷贝到目标目录 /// </summary> /// <param name="sourceDirectory">源路径</param> /// <param name="aimDirectory">目标路径</param> private bool RecursionCopyFiles(string sourceDirectory,string aimDirectory) { if(!System.IO.Directory.Exists(sourceDirectory)&!System.IO.Directory.Exists(aimDirectory))// return false; try { string[] directories=System.IO.Directory.GetDirectories(sourceDirectory); if(directories.Length>0) { foreach(string dir in directories)//递归调用 { RecursionCopyFiles(dir,aimDirectory+dir.Substring(dir.LastIndexOf(@"/")));//attention: "/" cann't instead of "/" } }
if(!System.IO.Directory.Exists(aimDirectory)) { System.IO.Directory.CreateDirectory(aimDirectory);//if not exist the aimDirectory,create it }
string[] files=System.IO.Directory.GetFiles(sourceDirectory);
if(files.Length>0) { foreach(string file in files) { //不需要进度条效果,可以直接使用下一句来拷贝文件 // System.IO.File.Copy(file,aimDirectory+file.Substring(file.LastIndexOf(@"/")));//Copy The File To The Aim string sourceFile=file; string aimFile=aimDirectory+file.Substring(file.LastIndexOf(@"/")); CopyFile(sourceFile,aimFile);//调用文件拷贝函数 } } return true;
} catch { return false; } //Over } }