C#使用ListView更新数据出现闪烁解决办法

2021-04-18 16:25

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在使用vs自动控件ListView控件时候，更新里面的部分代码时候出现闪烁的情况

如图：

技术分享图片

解决以后：

技术分享图片

解决办法使用双缓冲：添加新类继承ListView 对其重写

 1 public class DoubleBufferListView : ListView
 2     {
 3         public DoubleBufferListView()
 4         {
 5             SetStyle(ControlStyles.DoubleBuffer |
 6               ControlStyles.OptimizedDoubleBuffer |
 7               ControlStyles.AllPaintingInWmPaint, true);
 8             UpdateStyles();
 9         }
10     }

新建一个DemoTest测试

1.添加一个DoubleBufferListView的实例

 　　　　　　DoubleBufferListView doubleBufferListView1= new DoubleBufferListView();
            // 
            // doubleBufferListView1
            // 
            this.doubleBufferListView1.Font = new System.Drawing.Font("微软雅黑", 10.5F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
            this.doubleBufferListView1.FullRowSelect = true;
            this.doubleBufferListView1.HideSelection = false;
            this.doubleBufferListView1.Location = new System.Drawing.Point(50, 37);
            this.doubleBufferListView1.Name = "doubleBufferListView1";
            this.doubleBufferListView1.Size = new System.Drawing.Size(400, 191);
            this.doubleBufferListView1.TabIndex = 2;
            this.doubleBufferListView1.UseCompatibleStateImageBehavior = false;
            this.doubleBufferListView1.View = System.Windows.Forms.View.Details;

2.将其添加到form窗体里面

 this.Controls.Add(this.doubleBufferListView1);

3.给添加列

        doubleBufferListView1.Clear();
            doubleBufferListView1.Columns.Add("Action", 80, System.Windows.Forms.HorizontalAlignment.Left);
            doubleBufferListView1.Columns.Add("value", 80, System.Windows.Forms.HorizontalAlignment.Right);
            doubleBufferListView1.Columns.Add("Action", 80, System.Windows.Forms.HorizontalAlignment.Left);
            doubleBufferListView1.Columns.Add("value", 80, System.Windows.Forms.HorizontalAlignment.Left);

4.随便添加点内容

         string[] listViewData = new string[4];
            listViewData[0] = "Action";
            listViewData[1] = "1";
            listViewData[2] = "Action";
            listViewData[3] = "1";
            ListViewItem lvItem = new ListViewItem(listViewData, 0);
            doubleBufferView1.Items.Add(lvItem);

5.点击按钮开始运行

 private void button1_Click(object sender, EventArgs e)
        {
            Thread th = new Thread(PlayGame);
            if (state == false)
            {
                state = true;
                button1.Text = "停止";
                th.IsBackground = true;
                th.Name = "新线程";
                th.Start();
            }
            else
            {
                state = false;
                button1.Text = "开始";

            }
        }
        private void PlayGame()
        {
            Random r = new Random();
            while (state)
            {
                string temp = r.Next(0, 10).ToString();
                label1.Text = temp;
                this.doubleBufferListView1.Items[0].SubItems[1].Text = temp;
            }
        }

6.运行对比图：

左侧是解决闪屏后，右侧是自带的ListView效果

技术分享图片