backgroudWork使用案例

标签：oid   文件   sop   还需   +=   使用   mount   文件的   注意   

#region 删除垃圾文件过程

/// <summary>
/// 删除垃圾文件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btn_delete_Click(object sender, EventArgs e)
{

//开启后台查询线程，即引发新线程的事件，同时提供事件参数
//注意backgroundWork中的DoWork事件，并编写事件处理程序,
//并提供事件数据，因为后台线程是无法直接访问主线程的数据的，
//同时还需要编写backgroundWork中的RunWorkerCompleted事件处理程序，
//以通知前端主线程

string doWorkArguments = cmb_fileFolderDerectory.Text;
backgroundWorker1.RunWorkerAsync(doWorkArguments);

//开启处理进程条
this.progressBar1.Visible = true;
timer1.Interval = 100;
this.timer1.Tick += new EventHandler(Timer1_Tick);
timer1.Start();


}

/// <summary>
/// 用计时器体现查询进度表，非真实进度，仅是对用户的提示，因后台查询进度暂无法计算衡量
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Timer1_Tick(object sender, EventArgs e)
{

if (!finishedFlag)
{
if (progressBar1.Value == progressBar1.Maximum)
{
progressBar1.Value = 1;
}
else
{
this.progressBar1.Value++;
}

}
else
{
this.timer1.Stop();

}

}

/// <summary>
/// 删除文件的后台进程
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
FilesOperate f = new FilesOperate();
int deleteFilesAmount = f.DeleteUserFile(e.Argument.ToString());

}

private void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{

this.finishedFlag = true;
//完成后进程条不可见
this.progressBar1.Visible = false;
MessageBox.Show("删除垃圾文件" + this.deleteFilesAmount + "个", "删除提示");
}

#endregion

backgroudWork使用案例

标签：oid   文件   sop   还需   +=   使用   mount   文件的   注意   

原文地址：https://www.cnblogs.com/windy3417/p/14122753.html