同时显示四个图片框中的四张图片

Question

我想使用(打开文件对话框和

)在四个图片框中同时显示四个图像

菜单条)在c#中，我用这段代码打印图片，但不正确

private void fileToolStripMenuItem_Click(object sender, EventArgs e)
    {
        string str = null;
        string str2 = null;
        Bitmap img,img2;
        int n=1;
        OpenFileDialog opendialog1 = new OpenFileDialog();
        opendialog1.InitialDirectory = "D:\frames";
        opendialog1.Filter = "Image File|*.bmp;";
        opendialog1.Title = " Open Image file";
        if (opendialog1.ShowDialog() == DialogResult.OK)
        {  
            img = new Bitmap(opendialog1.FileName);
            pictureBox1.Image = img;
            str = opendialog1.FileName;
            string name = (n++).ToString().PadLeft(4, '0');
            img2 = new Bitmap("D:\frames"+name+".bmp");
            pictureBox2.Image = img2;
            str2 = opendialog1.FileName;
            name = (n++).ToString().PadLeft(4, '0');
            img2 = new Bitmap("D:\frames" + name + ".bmp");
            pictureBox3.Image = img2;
            str2 = opendialog1.FileName;
            name = (n++).ToString().PadLeft(4, '0');
            img2 = new Bitmap("D:\frames" + name + ".bmp");
            pictureBox4.Image = img2;
            str2 = opendialog1.FileName;
        }

我需要一个方法来显示四个图像在四个图片框在同一时间

Answer 1

您的变量名为name, str, str2, img2和n都是多余的，你想要实现的。

试试这个:

 private void fileToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Bitmap img;
            OpenFileDialog opendialog1 = new OpenFileDialog();
            opendialog1.InitialDirectory = "D:\frames";
            opendialog1.Filter = "Image File|*.bmp;";
            opendialog1.Title = " Open Image file";
            if (opendialog1.ShowDialog() == DialogResult.OK)
            {
                img = new Bitmap(opendialog1.FileName);
                pictureBox1.Image = img;
                img = new Bitmap("D:\frames\0001.bmp");
                pictureBox2.Image = img;
                img = new Bitmap("D:\frames\0002.bmp");
                pictureBox3.Image = img;
                img = new Bitmap("D:\frames\0003.bmp");
                pictureBox4.Image = img;
            }
        }

您甚至可以去掉img变量，直接分配图片框图像:

pictureBox1.Image = new Bitmap(opendialog1.FileName);
pictureBox2.Image = new Bitmap("D:\frames\0001.bmp");
pictureBox3.Image = new Bitmap("D:\frames\0002.bmp");     
pictureBox4.Image = new Bitmap("D:\frames\0003.bmp");