利用BackgroundWorker控件实现进度条的进度

private void frmImportFiles_Load(object sender, EventArgs e)
        {
            //调用bgwAnalysis的RunWorkerAsync方法，用来引发DoWork事件
                this.bgwAnalysis.RunWorkerAsync();
        }


private void bgwAnalysis_DoWork(object sender, DoWorkEventArgs e)
        {
            BackgroundWorker worker = sender as BackgroundWorker;
            //在DoWork中调用自定义函数，并将引发DoWork事件的sender传递出去
            Method(worker);
        }

//控制进度条
private void bgwAnalysis_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            this.pbAnalysisFiles.Value = this.pbAnalysisFiles.Width*e.ProgressPercentage/100;
        }

private void bgwAnalysis_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {
            if (e.Error != null)
            {
                MessageBox.Show(e.Error.Message, "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            else if (e.Cancelled)
            {
                MessageBox.Show("取消操作！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                return;
            }
            else
            {
                //进度完成后的处理
            }
       }