private void button1_Click(object sender, EventArgs e)
{
progressBar1.Value = 0;
string orgFile = textBox1.Text.Trim();
string newFile = textBox2.Text.Trim();
if (System.IO.File.Exists(orgFile))
{
bool copy = true;
if (System.IO.File.Exists(newFile))
{
if (DialogResult.Cancel == MessageBox.Show("新文件已经存在，是不继续复制，新文件即被覆盖", "文件已存在", MessageBoxButtons.OKCancel))
{
copy = false;
}
}
if (copy)
{
FilePair fileObj = new FilePair(orgFile, newFile);
lblMsg.Text = "文件开始复制";
worker.RunWorkerAsync(fileObj);
}
}
else
{
lblMsg.Text = "源文件不存在";
}
}
private void button1_Click(object sender, EventArgs e)
{
progressBar1.Value = 0;
string orgFile = textBox1.Text.Trim();
string newFile= textBox2.Text.Trim();
if(System.IO.File.Exists(orgFile))
{
bool copy = true;
if(System.IO.File.Exists(newFile))
{
if (DialogResult.Cancel == MessageBox.Show("新文件已经存在，是不继续复制，新文件即被覆盖", "文件已存在", MessageBoxButtons.OKCancel))
{
copy = false ;
}
}
if (copy)
{
FilePair fileObj = new FilePair(orgFile, newFile);
lblMsg.Text = "文件开始复制";
worker.RunWorkerAsync(fileObj);
}
}
else
{
lblMsg.Text="源文件不存在";
}
}
void worker_DoWork(object sender, DoWorkEventArgs e)
{
try
{
if (e.Argument != null && e.Argument is FilePair)
{
FilePair obj = (FilePair)e.Argument;
string orgFile = obj.OrgFile;
string newFile = obj.NewFile;
FileStream readFileStream = new FileStream(orgFile, FileMode.Open, FileAccess.Read);
FileStream writeFileStream = new FileStream(newFile, FileMode.Create, FileAccess.Write);
long totalByte = readFileStream.Length;
int buffLength = 1024;
byte[] buff = new byte[buffLength];
long writtenByte = 0;
int everytimeReadByteLength = readFileStream.Read(buff, 0, buffLength);
while (everytimeReadByteLength > 0)
{
writeFileStream.Write(buff, 0, everytimeReadByteLength);
everytimeReadByteLength = readFileStream.Read(buff, 0, buffLength);
writtenByte += everytimeReadByteLength;
int percent = (int)(writtenByte * 100 / totalByte);
worker.ReportProgress(percent);
}
writeFileStream.Close();
readFileStream.Close();
worker.ReportProgress(100);
}
}
catch (Exception ex)
{
worker.ReportProgress(100, ex);
}
}
private void button1_Click(object sender, EventArgs e)
{
progressBar1.Value = 0;
string orgFile = textBox1.Text.Trim();
string newFile= textBox2.Text.Trim();
if(System.IO.File.Exists(orgFile))
{
bool copy = true;
if(System.IO.File.Exists(newFile))
{
if (DialogResult.OK == MessageBox.Show("新文件已经存在，是不继续复制，新文件即被覆盖", "文件已存在", MessageBoxButtons.OKCancel))
{
System.IO.File.Delete(newFile);
}
else
{
copy = false ;
}
}
if (copy)
{
FilePair fileObj = new FilePair(orgFile, newFile);
lblMsg.Text = "文件开始复制";
FileStream readFileStream = new FileStream(orgFile, FileMode.Open, FileAccess.Read);
FileStream writeFileStream = new FileStream(newFile, FileMode.Create, FileAccess.Write);
long totalByte = (int)readFileStream.Length;
int buffLength = 1024;
byte[] buff = new byte[buffLength];
long writtenByte = 0;
int everytimeReadByteLength = readFileStream.Read(buff, 0, buffLength);
while (everytimeReadByteLength > 0)
{
writeFileStream.Write(buff, 0, everytimeReadByteLength);
everytimeReadByteLength = readFileStream.Read(buff, 0, buffLength);
writtenByte += everytimeReadByteLength;
int percent = (int)((writtenByte * 100) / totalByte);
lblMsg.Text = "文件复制已完成" + percent + "%";
progressBar1.Value = percent;
Application.DoEvents();
}
writeFileStream.Close();
readFileStream.Close();
lblMsg.Text = "文件复制已完成";
progressBar1.Value = 100;
}
}
else
{
lblMsg.Text="源文件不存在";
}
}
private void button1_Click(object sender, EventArgs e)
{
progressBar1.Value = 0;
string orgFile = textBox1.Text.Trim();
string newFile = textBox2.Text.Trim();
if (System.IO.File.Exists(orgFile))
{
bool copy = true;
if (System.IO.File.Exists(newFile))
{
if (DialogResult.OK == MessageBox.Show("新文件已经存在，是不继续复制，新文件即被覆盖", "文件已存在", MessageBoxButtons.OKCancel))
{
System.IO.File.Delete(newFile);
}
else
{
copy = false;
}
}
if (copy)
{
FilePair fileObj = new FilePair(orgFile, newFile);
lblMsg.Text = "文件开始复制";
FileStream readFileStream = new FileStream(orgFile, FileMode.Open, FileAccess.Read);
FileStream writeFileStream = new FileStream(newFile, FileMode.Create, FileAccess.Write);
long totalByte = (int)readFileStream.Length;
int buffLength = 1024;
byte[] buff = new byte[buffLength];
long writtenByte = 0;
int everytimeReadByteLength = readFileStream.Read(buff, 0, buffLength);
while (everytimeReadByteLength > 0)
{
writeFileStream.Write(buff, 0, everytimeReadByteLength);
everytimeReadByteLength = readFileStream.Read(buff, 0, buffLength);
writtenByte += everytimeReadByteLength;
int percent = (int)((writtenByte * 100) / totalByte);
lblMsg.Text = "文件复制已完成" + percent + "%";
progressBar1.Value = percent;
Application.DoEvents();
}
writeFileStream.Close();
readFileStream.Close();
lblMsg.Text = "文件复制已完成";
progressBar1.Value = 100;
}
}
else
{
lblMsg.Text = "源文件不存在";
}
}
