private void btnAdd_Click(object sender, MouseButtonEventArgs e)
{
if (_ViewFullName.IsNullOrEmpty())
{
FormCommon.ShowErr("必须将属性“_ViewFullName”设置为当前画面的全称！");
return;
}
if (this._DefaultDirectory.IsNullOrEmpty())
{
FormCommon.ShowErr("必须设置属性“_DefaultDirectory”！");
return;
}
var op = new System.Windows.Forms.OpenFileDialog();
op.RestoreDirectory = true;
var result = op.ShowDialog();
if (result == System.Windows.Forms.DialogResult.OK)
{
SourceFile = op.FileName;
//this._Text = this._Content;
this.IsEnabled = true;
var arge = new MyUploadEventArge(BeforeAttarchUploadRoutedEvent, this);
arge._SourceFileInfo = new FileInfo(op.FileName);
RaiseEvent(arge);
ThdCopyFile = new Thread(new ThreadStart(RunCopyFile));
// 将子线程管理起来，便宜在画面关闭后将子线程停止
ThreadManager._AddThread(_ViewFullName, ThdCopyFile);
// 开始下载
this.IsEnabled = false;
ThdCopyFile.Start();
}
}
/// <summary>
/// 复制文件
/// </summary>
/// <param name="sourceFile">源文件路径</param>
/// <param name="ToFile">目的文件路径</param>
/// <param name="TranSize">传输大小</param>
/// <param name="progressBar1">ProgressBar控件</param>
private void CopyFile(string sourceFile, string ToFile, int TranSize)
{
if (sourceFile.IsNullOrEmpty())
{
FormCommon.ShowErr("未指定源文件！");
return;
}
// 实例化源文件FileStream类
FileStream FormerOpenStream;
// 实例化目标文件FileStream类
FileStream ToFileOpenStream;
try
{
FormerOpenStream = new FileStream(sourceFile, FileMode.Open, FileAccess.Read);//以只读方式打开源文件
}
catch (IOException ex)
{
MessageBox.Show(ex.Message);
return;
}
try
{
FileStream fileToCreate = new FileStream(ToFile, FileMode.Create); //创建目的文件，如果已存在将被覆盖
fileToCreate.Close(); //关闭所有fileToCreate的资源
fileToCreate.Dispose(); //释放所有fileToCreate的资源
}
catch (IOException ex)
{
MessageBox.Show(ex.Message);
return;
}
ToFileOpenStream = new FileStream(ToFile, FileMode.Append, FileAccess.Write);//以写方式打开目的文件
//根据一次传输的大小，计算最大传输个数. Math.Ceiling 方法 (Double),返回大于或等于指定的双精度浮点数的最小整数值。
int max = Convert.ToInt32(Math.Ceiling((Double)FormerOpenStream.Length / (Double)TranSize));
int currentVal = 0;
//progressBar1.Maximum = max;//设置进度条的最大值
int FileSize; //每次要拷贝的文件的大小
if (TranSize < FormerOpenStream.Length) //如果分段拷贝，即每次拷贝内容小于文件总长度
{
byte[] buffer = new byte[TranSize]; //根据传输的大小，定义一个字节数组，用来存储传输的字节
int copied = 0; //记录传输的大小
int tem_n = 1; //设置进度栏中进度的增加个数
while (copied <= ((int)FormerOpenStream.Length - TranSize))
{
FileSize = FormerOpenStream.Read(buffer, 0, TranSize); //从0开始读到buffer字节数组中，每次最大读TranSize
FormerOpenStream.Flush(); //清空缓存
ToFileOpenStream.Write(buffer, 0, TranSize); //向目的文件写入字节
ToFileOpenStream.Flush(); //清空缓存
ToFileOpenStream.Position = FormerOpenStream.Position; //是源文件的目的文件流的位置相同
copied += FileSize; //记录已经拷贝的大小
currentVal += tem_n; //增加进度栏的进度块
Application.Current.Dispatcher.Invoke((Action)(() =>
{
lblPercent.Content = (currentVal * 100 / max).ToString() + "%";
}));
}
int leftSize = (int)FormerOpenStream.Length - copied; //获取剩余文件的大小
FileSize = FormerOpenStream.Read(buffer, 0, leftSize); //读取剩余的字节
FormerOpenStream.Flush();
ToFileOpenStream.Write(buffer, 0, leftSize); //写入剩余的部分
ToFileOpenStream.Flush();
}
else //如果整体拷贝，即每次拷贝内容大于文件总长度
{
byte[] buffer = new byte[FormerOpenStream.Length];
FormerOpenStream.Read(buffer, 0, (int)FormerOpenStream.Length);
FormerOpenStream.Flush();
ToFileOpenStream.Write(buffer, 0, (int)FormerOpenStream.Length);
ToFileOpenStream.Flush();
}
FormerOpenStream.Close();
ToFileOpenStream.Close();
Application.Current.Dispatcher.Invoke((Action)(() =>
{
lblPercent.Content = "100%";
var fileInfo = new FileInfo(ToFile);
_AttachmentList.Add(fileInfo);
MyTimer.SetTimeout(1000, () =>
{
lblPercent.Content = "";
CreateSmallImg(fileInfo, _AttachmentList.Count - 1);
});
this.IsEnabled = true;
var arge = new MyUploadEventArge(AftervUploadRoutedEvent, this);
arge._SourceFileInfo = new FileInfo(sourceFile);
arge._TargetFileInfo = new FileInfo(ToFile);
RaiseEvent(arge);
}));
}
