C#中PictureBox异步加载图片 – 性别男、爱好女 – 博客频道 – CSDN.NET

蛮不错的异步加载图片的demo

private void button1_Click(object sender, EventArgs e) { //模拟 String[] st=new String[13]; for (int i = 0; i < 13; i++) {//这里我用的是比较大的图片桌面背景用于测试可以根据自己的实际情况来添加地址可以是url等形式 st[i]=@”D:/备份/桌面背景/”+i+”.jpg”; }//为了节约时间简洁代码创建图片容器时没多做处理 for (int j = 0; j < st.Length; j++) { //创建pictureBox PictureBox pi = new PictureBox(); pi.InitialImage = global::MainForm.Properties.Resources._36_1_;//等待时显示其他图片 pi.Location = new System.Drawing.Point(22, 25); pi.Name = “pictureBox” + j; pi.Size = new System.Drawing.Size(185, 99); pi.TabIndex = 0; pi.TabStop = false; pi.LoadCompleted += new System.ComponentModel.AsyncCompletedEventHandler(this.pictureBox1_LoadCompleted); //图片异步加载完成后的处理事件 pi.LoadCompleted += new AsyncCompletedEventHandler(pictureBox_LoadCompleted); //图片加载时，显示等待光标 pi.UseWaitCursor = true; //采用异步加载方式 pi.WaitOnLoad = false; //开始异步加载 pi.LoadAsync(st[j].ToString()); flowLayoutPanel1.Controls.Add(pi); } }//通用事件 private void pictureBox_LoadCompleted(object sender, AsyncCompletedEventArgs e) {//转换成PictureBox PictureBox pi = (PictureBox)sender; //图片加载完成后，将光标恢复 pi.UseWaitCursor = false; }

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