从面板图片库加载图像到图片框

本文关键字：图像 加载 图片库 | 更新日期: 2023-09-27 18:05:32

我在windows窗体应用程序中创建了一个图片库，将多个图像添加到一个面板中。现在我想将点击后的图像加载到另一个图片框中。有人能帮我吗?

我的代码
OpenFileDialog ofd = new OpenFileDialog();
ofd.Filter = "JPG|*.jpg|JPEG|*.jpeg|PNG|*.png";
ofd.Multiselect = true;
DialogResult dr = ofd.ShowDialog();
if(dr==DialogResult.OK)
{
    int x = 20;
    int y = 20;
    int maxHeight = -1;
    string[] files = ofd.FileNames;
    foreach (string img in files)
    {
        PictureBox pic = new PictureBox();
        pic.Image = System.Drawing.Image.FromFile(img);
        pic.SizeMode = PictureBoxSizeMode.StretchImage;
        pic.Location = new System.Drawing.Point(x, y);
        x += pic.Width + 10;
        maxHeight = Math.Max(pic.Height, maxHeight);
        if(x > this.pnlGallary.Width - 100)
        {
            x = 20;
            y += maxHeight + 10;
        }
        this.pnlGallary.Controls.Add(pic);
    }
}

示例图片在这里

从面板图片库加载图像到图片框

请替换代码如下:

OpenFileDialog ofd = new OpenFileDialog();
ofd.Filter = "JPG|*.jpg|JPEG|*.jpeg|PNG|*.png";
ofd.Multiselect = true;
DialogResult dr = ofd.ShowDialog();
if (dr == DialogResult.OK)
{
    int x = 20;
    int y = 20;
    int maxHeight = -1;
    string[] files = ofd.FileNames;
    foreach (string img in files)
    {
        PictureBox pic = new PictureBox();
        pic.Click += new EventHandler(pictureBox_Click);  // call the custom event for dynamic generated PictureBox
        pic.Image = System.Drawing.Image.FromFile(img);
        pic.SizeMode = PictureBoxSizeMode.StretchImage;
        pic.Location = new System.Drawing.Point(x, y);
        x += pic.Width + 10;
        maxHeight = Math.Max(pic.Height, maxHeight);
        if (x > this.pnlGallary.Width - 100)
        {
            x = 20;
            y += maxHeight + 10;
        }
        this.pnlGallary.Controls.Add(pic);
    }
}

为动态生成的PictureBox添加公共点击事件处理程序，如下所示

void pictureBox_Click(object sender, EventArgs e)
{
    pictureBox1.Image = ((PictureBox)sender).Image;
}
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