Question

我创建了两个dataGridViews和一个开始按钮，如图所示。

当我按下“开始”按钮时，使用代理MyDel创建了两个线程t1和t2。

实际上，我希望连续填充dataGridView1和dataGridView2。但只有dataGridView2会不断更新。 dataGridView2完成后，dataGridView1开始更新。

有人可以给我建议如何解决这个问题吗？

enter image description here

using System;
using System.Windows.Forms;
using System.Threading;

namespace MultiThreadedDataGridViewDemo
{
    public partial class Form1 : Form
    {
        private delegate void MyDel();

        int count=0;
        int count_1 = 0;

        public Form1()
        {    
            InitializeComponent();

            //Cells are created in dataGridView1 and dataGridView2
            for (int p = 0; p < 37; p++)
            {
                 dataGridView1.Columns.Add("", "");// dynamic cloumn adding
                 dataGridView1.Rows.Add();//dynamic row adding
                 dataGridView1.Columns[p].SortMode = DataGridViewColumnSortMode.NotSortable;//Disables the column header sorting
                 dataGridView1.Columns[p].AutoSizeMode = DataGridViewAutoSizeColumnMode.None;
                 dataGridView1.Columns[p].Width = 70;

                 dataGridView2.Columns.Add("", "");// dynamic cloumn adding
                 dataGridView2.Rows.Add();//dynamic row adding
                 dataGridView2.Columns[p].SortMode = DataGridViewColumnSortMode.NotSortable;//Disables the column header sorting
                 dataGridView2.Columns[p].AutoSizeMode = DataGridViewAutoSizeColumnMode.None;
                 dataGridView2.Columns[p].Width = 70;

            }
        }
        //Method to populate dataGridView1
        public void Method1()
        {
            while (count < 10000)
            {
                for (int i = 0; i < dataGridView1.Rows.Count; i++)
                {
                    for (int k = 0; k < dataGridView1.Columns.Count; k++)
                    {

                        dataGridView1.Rows[i].Cells[k].Value = count;
                    }
                }
                count++;
            }
        }
        //Method to populate dataGridView2           
        public void Method2()
        {
            while (count_1 < 10000)
            {
                for (int i = 0; i < dataGridView2.Rows.Count; i++)
                {
                    for (int k = 0; k < dataGridView2.Columns.Count; k++)
                    {
                        dataGridView2.Rows[i].Cells[k].Value = count_1;
                    }
                }
                count_1++;
            }                  
        }

        //Creates threads to populate dataGridView1 and dataGridView1
        private void btn_Start_Click(object sender, EventArgs e)
        {
                MyDel del_1 = new MyDel(Method1);
                Thread t1 = new Thread(new ThreadStart(del_1));
                t1.Start();

                MyDel del_2 = new MyDel(Method2);
                Thread t2 = new Thread(new ThreadStart(del_2));
                t2.Start();
        }
    }
}

Answer 1

您应该使用BackgroundWorker，并更新其ProgressChanged - 事件中的用户界面，该事件用于访问UI - 主题。使用ReportProgress - 方法，您可以将int percentProgress和object userState发送到链接的ProgressChanged - 方法。使用userState - 对象，您可以传递一个完整的DataGridViewRows列表，并将其ProgressChanged - 方法添加到您的DataGridView。

如何在C＃中使用不同的线程连续填充两个dataGridView？

1 个答案: