如何在我的 winform 进度条中显示状态？答案

【问题标题】：How do I show status in a progress bar on my winform?如何在我的 winform 进度条中显示状态？
【发布时间】：2013-02-08 08:42:20
【问题描述】：

在将数据从一个表传输到另一个表时，我想要一个进度条来显示我的表单上的状态。我尝试了一些方法，但它不起作用。

if (dataGridView1.RowCount - 1 == no_Of_rows)
{
    progressBar1.Value = 100;
    dataGridView1.Visible = true;
}
else
{
    progressBar1.Value = 50;
    dataGridView1.Visible = false;
}

【问题讨论】：

显示代码并告诉 what 不起作用。
使用 BackgroundWorker，查找类，从那里开始。
if (dataGridView1.RowCount - 1 == no_Of_rows) { progressBar1.Value = 100; dataGridView1.Visible = true; } else { 进度条1.Value = 50; dataGridView1.Visible = false; }
请不要将代码发布为评论。更新您的帖子（或添加答案）并使用代码标签

标签： c# winforms c#-4.0 progress-bar

【解决方案1】：

使用进度条窗口控件

供参考： http://www.codeproject.com/Articles/449594/Progress-Bars-Threads-Windows-Forms-and-You

【讨论】：

【解决方案2】：

这是一个如何使用后台工作程序的示例。

private BackgroundWorker worker;
    public Form1()
    {
        InitializeComponent();


        this.worker = new BackgroundWorker
            {
                WorkerReportsProgress = true
            };
        worker.DoWork += WorkerOnDoWork;
        worker.ProgressChanged += WorkerOnProgressChanged;
        worker.RunWorkerCompleted += delegate
            {
                //Set the value of the progressbar to the maximum value if the work is done
                this.progressBar1.Value = this.progressBar1.Maximum;
            };
        worker.RunWorkerAsync();
    }

    private void WorkerOnProgressChanged(object sender, ProgressChangedEventArgs e)
    {
        //Set the value of the progressbar, or increment it.
        //You can use the e.ProgressPercentage to get the value you set in the DoWork-Method
        //The e.UserState ist a custom-value you can pass from the DoWork-Method to this Method
        this.progressBar1.Increment(1);
    }


    private void WorkerOnDoWork(object sender, DoWorkEventArgs e)
    {
        // Do you stuff here. Here you can tell the backgroundworker to report the progress like.
        this.worker.ReportProgress(5);
        //You can not access properties from here, so if you want to pass a value or something else to the
        //progresschanged-method you have to use e.Argument. 

    }

这是一个 winforms 应用程序。在表单上只有一个名为 progressbar1 的进度条

【讨论】：