1

我正在尝试在我的工作进行时显示一些加载屏幕。我的工作是一次将一个文件从一个单元格移动到另一个单元格，代码运行良好。但when i am trying to move a group of files the loading screen is coming and after job its stuck for 20-30 seconds

我找到了解决方案：its because after all the files are moved to the next column, my control is going to dataGridView1_DataBindingComplete 所以发生的事情是网格单元根据我的状况给出颜色，当我完全移除dataGridView1_DataBindingComplete它的工作时..但我也需要给出颜色..请告诉我如何处理这种情况。

代码：

    private void button3_Click(object sender, EventArgs e)
    {
        Hide();
        bool done = false;
        ThreadPool.QueueUserWorkItem((x) =>
        {
            using (var splashForm = new Form4())
            {
                splashForm.Show();
                while (!done)
                    Application.DoEvents();
                splashForm.Close();
            }
        });

        move(); // this is my function to move all files from one column to another
        done = true;
        Show();

    }

           private void dataGridView1_DataBindingComplete(object sender, DataGridViewBindingCompleteEventArgs e)
    {
        string strVal = ini.ReadValue("Action", "Doc-Controller");

        bool authenticated = true;
        string textboxGroupName1 = ini.ReadValue("Action", "Fabricator");
        if (authenticated == UserInCustomRole(textboxGroupName1))
        {

            foreach (DataGridViewRow row in dataGridView1.Rows)
            {
                string fName1 = System.IO.Path.GetFileNameWithoutExtension(row.Cells[2].Value.ToString());
                string fName2 = System.IO.Path.GetFileNameWithoutExtension(row.Cells[3].Value.ToString());
                if (!string.IsNullOrEmpty(fName1) && !string.IsNullOrEmpty(fName2))
                {
                    var f1 = GetValue(fName1.ToCharArray()[fName1.Length - 2]) * 16 + GetValue(fName1.ToCharArray()[fName1.Length - 1]);
                    var f2 = GetValue(fName2.ToCharArray()[fName2.Length - 2]) * 16 + GetValue(fName2.ToCharArray()[fName2.Length - 1]);
                    //if (System.IO.Path.GetFileName(fName1) != System.IO.Path.GetFileName(fName2))
                    if (f1 > f2)
                    {
                        //MessageBox.Show(fName1);
                        DataGridViewCellStyle style = new DataGridViewCellStyle();
                        style.BackColor = Color.Yellow;
                        row.Cells[2].Style = style;
                    }
                    else if (f2 > f1)
                    {
                        //MessageBox.Show(fName1);
                        DataGridViewCellStyle style = new DataGridViewCellStyle();
                        style.BackColor = Color.Yellow;
                        row.Cells[3].Style = style;
                    }

                    if (f1 == f2)
                    {
                        DataGridViewCellStyle style = new DataGridViewCellStyle();
                        style.BackColor = Color.Plum;
                        row.Cells[3].Style = style;
                        row.Cells[2].Style = style;
                    }
                }
            }

        }

        if (authenticated == UserInCustomRole(strVal))
        {
            foreach (DataGridViewRow row in dataGridView1.Rows)
            {
                string fName1 = System.IO.Path.GetFileNameWithoutExtension(row.Cells[3].Value.ToString());
                string fName2 = System.IO.Path.GetFileNameWithoutExtension(row.Cells[4].Value.ToString());
                if (!string.IsNullOrEmpty(fName1) && !string.IsNullOrEmpty(fName2))
                {
                    var f1 = GetValue(fName1.ToCharArray()[fName1.Length - 2]) * 16 + GetValue(fName1.ToCharArray()[fName1.Length - 1]);
                    var f2 = GetValue(fName2.ToCharArray()[fName2.Length - 2]) * 16 + GetValue(fName2.ToCharArray()[fName2.Length - 1]);
                    //if (System.IO.Path.GetFileName(fName1) != System.IO.Path.GetFileName(fName2))
                    if (f1 > f2)
                    {
                        //MessageBox.Show(fName1);
                        DataGridViewCellStyle style = new DataGridViewCellStyle();
                        style.BackColor = Color.Yellow;
                        row.Cells[3].Style = style;
                    }
                    else if (f2 > f1)
                    {
                        //MessageBox.Show(fName1);
                        DataGridViewCellStyle style = new DataGridViewCellStyle();
                        style.BackColor = Color.Yellow;
                        row.Cells[4].Style = style;
                    }

                    if (f1 == f2)
                    {
                        DataGridViewCellStyle style = new DataGridViewCellStyle();
                        style.BackColor = Color.Plum;
                        row.Cells[4].Style = style;
                        row.Cells[3].Style = style;
                    }
                }
            }
        }
    }

    private int GetValue(char ch)
    {
        if (ch >= 48 && ch <= 57)
            return ch - 48;
        else if (ch >= 65 && ch <= 90)
            return ch - 65 + 10;
        else
            return 0;
    }
4

2 回答 2

0

为了帮助您了解全局，这里概述了解决问题的一种方法。这仅使用 ONE BackgroundWorker，并注意对话框正在由主 UI 线程显示，因为它是从 ProgressChanged() 事件显示的：

Button Click Handler
    Disable the Button
    Build a List of the Work to be done
    Pass List to RunWorkerAsync

DoWork Handler
    Cast e.Argument back to your List
    Call ReportProgress() with -1 as the param
    Iterate over the List and Do the Work
        ...after you move each file...
        Call ReportProgress() and pass the percentage complete as the first parameter,
            with the data to update the grid with in the second parameter
            *You can pass anything you want out in the second parameter, like a Custom Class

ProgressChanged Handler
    If e.ProgressPercent is -1 Then
        Display your Dialog
    Else
        Cast e.UserState to your progress structure and update the grid accordingly

RunWorkerCompleted Handler
    Close your dialog
    Re-enable the Button
于 2014-12-09T20:33:41.787 回答
-1

当他的一个孩子还活着时，您无法关闭线程。对于我们来说，它是您的 Form4。

尝试将 IsBackGround 设置为 true。即使他的一个孩子还活着，它也会让你的线程死掉：

private void button3_Click(object sender, EventArgs e)
{
    Thread thd = new Thread(new ThreadStart(SomeThread));
    thd.IsBackground = true;
    thd.Start();
    movement();
    dataGridView1.Refresh();
    thd.Abort();
}
于 2014-12-09T15:16:56.767 回答