我想在Form里用代码加控件
在load事件中创建一个PictureBox控件
然后加入图片，在mouseHover的事件中我想实现
如果控件是PictureBox控件的话就在些控件上创建一个Label控件，并且在上面显示数据，我用 this.Controls
if(this.Controls is PictureBox)
{
}
这种方式判断为什么不行呀？而且我图片上停留的时候根本进不了mouseHover这个事件当中
请高手指教。

1，this.Controls是整个form里面所有控件的集合
2，"而且我图片上停留的时候根本进不了mouseHover这个事件当中"
这个可能因为你没注册事件，在事件浏览器里面找到这个事件，并且点它
3，楼主可能要那种提示效果，往picturebox上拖放一个tooltip控件，然后直接写在picturebox的tooltip属性里面就行

[ 本帖最后由 jedypjd 于 2009-10-3 09:21 编辑 ]

我怎么有点看不懂啊！

我知道this Controls是整个FORM的控件的集合，那我想怎么提取出我鼠标移动到那位置时的控件呢？

this Controls改成sender

感激下，我去试试。

private void Form1_Load(object sender, EventArgs e)
        {
            int x=50,y=50;
            for(int i =0;i<=20;i++)
            {
                if(x<=500)
                {
                    PictureBox pb = new PictureBox();
                    pb.Location = new Point(x, y);
                    pb.Image = Image.FromFile("42032B59-017F-46B4-AC11-8FDF52B40A6D.jpg");
                    pb.Size = Image.FromFile("42032B59-017F-46B4-AC11-8FDF52B40A6D.jpg").Size;
                    this.Controls.Add(pb);
                    pb.Tag = 10;
                    x=x+50;
                }
                else
                {
                    x=50;
                     
                    y=y+50;
                }
                 
            }
        }
 
        private void Form1_Click(object sender, EventArgs e)
        {
            if (sender is PictureBox)
            {
                Label lb = new Label();
                lb.AutoSize = true;
                lb.Text = "aldfjaslkjflasdjflkajksdklfjasdjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj";
                lb.Location = MousePosition;
                this.Controls.Add(lb);
 
            }
        }
这么先生成几个图像，然后在鼠标点击的时候建一个LABEL然后显示出信息，可是我这么写之后点击图片的时候完全没有反应，点击空白的地就可以进行调试