参考选中的图片框

Question

我是 C# 新手，想根据一个轨迹栏值更改一些图片框的大小。 如果我编写下面的代码引用一个特定的图片框（例如 Picturebox1 而不是 PB）它可以工作，但我想对我双击的所有图片框使用一个双击事件。

下面的代码给出了 PB = null。 我得到了选定的图片框名称，但我怎样才能引用这个图片框？

'''

  private void PictureBoxesDoubleClick(object sender, EventArgs e)
        {
            //get the selected Picturebox name
            String PictureBoxName = ((PictureBox)sender).Name;

        //This part doesn't work
        PictureBox PB = (PictureBox)this.Controls[PictureBoxName];

        //Resize the Picture box according to the trackBar Value
        PB.Size = new Size(trackBar1.Value, trackBar1.Value);
        PB.Left = (this.ClientSize.Width - pictureBox1.Width) / 2;
        PB.Top = (this.ClientSize.Height - pictureBox1.Height) / 2;
     }

'''

Which pictureBox was selected? C#

谢谢

Answer 1

这是我在双击两个图片框时使用的常用功能，它工作正常。检查表单中的所有图片框是否也具有通用功能。

private void pictureBox1_DoubleClick(object sender, EventArgs e)
{
    //get the selected Picturebox name
    String PictureBoxName = ((PictureBox)sender).Name;

    PictureBox PB = (PictureBox)this.Controls[PictureBoxName];

    //Resize the Picture box according to the trackBar Value

    PB.Size = new Size(trackBar1.Value*10, trackBar1.Value*10);
    PB.Left = (this.ClientSize.Width - pictureBox1.Width) / 2;
    PB.Top = (this.ClientSize.Height - pictureBox1.Height) / 2;

}