嘗試讀取和解碼大文件時，C＃GUI凍結

Question

我已經開發了一個GUI Winforms來讀取和解碼CSV文件並將其保存為Excel和CSV格式。 我在datagridview中顯示解碼的數據。 一切正常，但由於某些怪異的原因，GUI由於大文件而凍結，或者天氣可能很冷。 它仍會執行其應做的操作，但顯示（軟件未響應）。 我也使用過線程和后台工作，但仍然沒有希望。 這是代碼。 請分享任何幫助

 public delegate void UpdatingTable();
    private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
    {
        Invoke(new UpdatingTable(DecodingData));
    }


    private void cnvrtB_Click(object sender, EventArgs e)
    {
        progressBar1.Enabled = true;
        progressBar1.Visible = true;
        saveB.Visible = true;
        cnvrtB.Enabled = false;
        label5.Visible = true;
        backgroundWorker1.RunWorkerAsync();
        //DecodingThread = new Thread(new ThreadStart(StartDecoding));
        //DecodingThread.IsBackground = true;

        //if (!(DecodingThread.IsAlive) || DecodingThread == null)
        //{
        //    progressBar1.Enabled = true;
        //    progressBar1.Visible = true;
        //    saveB.Visible = true;
        //    cnvrtB.Enabled = false;
        //    label5.Visible = true;
        //    Thread.Sleep(2000);
        //    DecodingThread.Start();
        //}
        //else if (DecodingThread.IsAlive)
        //{
        //    progressBar1.Enabled = true;
        //    progressBar1.Visible = true;
        //    saveB.Visible = true;
        //    cnvrtB.Enabled = false;
        //    label5.Visible = true;
        //    DecodingThread.Resume();
        //}           

    }


    private void StartDecoding()
    {
        Thread.Sleep(1000);
        Invoke(new UpdatingTable(DecodingData));
    }
    public void DecodingData()
    {
        try
        {
            //delete old records                
            records.Clear();

            //get records from converter
            if (VersionNumber == 1)
            {
                records.AddRange(LogEventDecode.getRecords());

            }
            else if (VersionNumber == 0)
            {
                records.AddRange(LogEventDecode.getRecordsOld());
            }

            //create datatable for records
            table = new System.Data.DataTable("data");
            //create columns
            table.Columns.Add("Time", typeof(System.DateTime));
            table.Columns.Add("Date", typeof(System.DateTime));
            table.Columns.Add("dt", typeof(System.DateTime));
            table.Columns.Add("User", typeof(System.String));
            table.Columns.Add("SourceInformation", typeof(System.String));
            table.Columns.Add("SourceType", typeof(System.String));
            table.Columns.Add("SourceCondition", typeof(System.String));
            table.Columns.Add("securityLevel", typeof(System.String));
            table.Columns.Add("AdditionalInformation", typeof(System.String));
            table.Columns.Add("RubCondition", typeof(System.String));

            //populate datatable
            foreach (LogRecord r in records)
            {
                DataRow row = table.NewRow();
                row["Time"] = r.Time;
                row["Date"] = r.Date;
                row["dt"] = r.dt;
                row["User"] = r.User;
                row["SourceInformation"] = r.SourceInformation;
                row["SourceType"] = r.SourceType;
                row["SourceCondition"] = r.SourceCondition;
                row["securityLevel"] = r.SecurityLevel;
                row["AdditionalInformation"] = r.AdditionalInformation;
                row["RubCondition"] = r.RubCondition;
                table.Rows.Add(row);
                //DecodingCount++;
                //label5.Text = "Decoded" + DecodingCount + " out of Total Logs " + records.Count;
            }
            view = new DataView(table);

            //bind to grid                

            //DecodingThread.Abort();
        }
        catch
        {
            MessageB.Show("Please make sure you have Imported the File \nOR\n The imported file is not corrupted.", "File Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            cnvrtB.Enabled = true;
        }

    }

    private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
    {
        logRecordBindingSource.DataSource = view;


        cnvrtB.Enabled = true;

        progressBar1.Visible = false;
        progressBar1.Enabled = false;
        label5.Visible = false;
    }

給定的示例同時顯示了線程和后台方法

謝謝

Answer 1

根據MSDN ，不要在后台工作人員中調用Invoke ，這是Invoke作用：

在擁有控件的基礎窗口句柄的線程上執行委托。

因此，您的后台工作人員正在控件（即GUI）線程上執行代碼