我无法让进度条工作!如果我执行以下代码,即使代码被执行,该栏仍然是空的 ReportProgress 似乎没有更新任何东西..:
namespace GPUZ_2
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
GPUZdata test = new GPUZdata
{
};
//invio l'oggetto al thread backgroundworker
backgroundWorker1.RunWorkerAsync(test);
}
private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
//
// e.Argument always contains whatever was sent to the background worker
// in RunWorkerAsync. We can simply cast it to its original type.
//
GPUZdata argumentTest = e.Argument as GPUZdata;
argumentTest.OneValue = 6;
Thread.Sleep(2000);
backgroundWorker1.ReportProgress(50);
argumentTest.TwoValue = 3;
Thread.Sleep(2000);
backgroundWorker1.ReportProgress(100);
//
// Now, return the values we generated in this method.
// Always use e.Result.
//
e.Result = argumentTest;
}
private void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
// Receive the result from DoWork, and display it.
GPUZdata test = e.Result as GPUZdata;
this.Text = test.OneValue.ToString() + " " + test.TwoValue.ToString();
}
private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
{
// Change the value of the ProgressBar to the BackgroundWorker progress.
progressBar1.Value = e.ProgressPercentage;
// Set the text.
this.Text = e.ProgressPercentage.ToString();
}
}
预先感谢您的帮助
最佳答案
要初始化 BackgroundWorker,您必须启用进度报告并连接您的事件处理程序:
// Enable progress reporting
backgroundWorker1.WorkerReportsProgress = true;
// Hook up event handlers
backgroundWorker1.DoWork += backgroundWorker1_DoWork;
backgroundWorker1.RunWorkerCompleted += backgroundWorker1_RunWorkerCompleted;
backgroundWorker1.ProgressChanged += backgroundWorker1_ProgressChanged;
关于c# - backgroundWorker 和 progressChanged 不工作,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/9650908/