晚上好,
我刚开始玩 C#,并尝试为在命令行中运行的程序创建 GUI。我已经能够让它运行,但现在我被困在试图为其实现一个进度条。
我已阅读其他帖子,但我无法找到确切的问题或了解如何将解决方案应用于我的问题。
这是我的代码(如果这很混乱,请道歉):
private void MethodToProcess(Object sender, DoWorkEventArgs args)
{
// Set all the strings for passthrough
String USMTPath_Work = USMTPath + USMTArch;
String USMTPath_full = USMTPath_Work + @"\Scanstate.exe";
String USMTFlags_Capture = @"/c /v:13 /o /l:scanstate.log /localonly /efs:copyraw";
String Argument_full = SavePath + XML1 + XML2 + USMTFlags_Capture;
// Test that USMT path is correct
if (USMTPath == null)
{
MessageBox.Show("Error: There is no USMT Path defined.");
return;
}
// Test that Windows folder is correct when offline
/* if (Windows_Path == null)
{
MessageBox.Show("Error: There is no Windows Path to capture.");
return;
} */
// Runs the capture
System.Diagnostics.Process Scanstate = new System.Diagnostics.Process();
Scanstate.StartInfo.FileName = USMTPath_full;
Scanstate.StartInfo.Arguments = Argument_full;
Scanstate.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
Scanstate.StartInfo.WorkingDirectory = USMTPath_Work;
//Scanstate.StartInfo.UseShellExecute = false;
Scanstate.StartInfo.CreateNoWindow = true;
//Scanstate.StartInfo.RedirectStandardOutput = true;
Scanstate.Start();
Scanstate.WaitForExit();
String Str_ExitCode = Scanstate.ExitCode.ToString();
if (Scanstate.ExitCode == 1)
MessageBox.Show("Error: Data has not been captured. Please check the log files for details.");
if (Scanstate.ExitCode == 0)
MessageBox.Show("Success: Data has been captured. For more information, check log files.");
else
{
MessageBox.Show("Error: Unknown error has occurred. Please check the log files for details.");
MessageBox.Show("Error Code: " + Str_ExitCode);
}
Scanstate.Close();
}
基本上,我正在尝试运行进程scanstate.exe。现在,我正在尝试运行 backgroundworker 以便能够检索进度并将其传递给进度条。
private void btnCapture_Click(object sender, EventArgs e)
{
progressBar1.Minimum = 0;
progressBar1.Maximum = 100;
progressBar1.Step = 1;
BackgroundWorker CaptureBG = new BackgroundWorker();
CaptureBG.WorkerReportsProgress = true;
CaptureBG.DoWork += new DoWorkEventHandler(MethodToProcess);
CaptureBG.RunWorkerCompleted +=new RunWorkerCompletedEventHandler(CaptureBG_RunWorkerCompleted);
CaptureBG.ProgressChanged += new ProgressChangedEventHandler(CaptureBG_ProgressChanged);
CaptureBG.RunWorkerAsync();
}
和
private void CaptureBG_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs args)
{
progressBar1.Value = 100;
}
private void CaptureBG_ProgressChanged(object sender, ProgressChangedEventArgs args)
{
progressBar1.Value++;
}
但是,由于进程运行,我要么误解了使用,要么遗漏了一些东西,但我在进度条上没有任何进展。它仅在过程完成后填充。
我究竟做错了什么?一般来说,如果我不确切知道需要多长时间,流程将如何报告进度?
提前致谢