我有n个图片框。他们应该动态执行以下事件:
private void pictureBoxMouseHover(object sender, EventArgs e)
{
if (sender is PictureBox)
{
((PictureBox)sender).BorderStyle = BorderStyle.FixedSingle;
}
}
private void pictureBoxMouseLeave(object sender, EventArgs e)
{
if (sender is PictureBox)
{
((PictureBox)sender).BorderStyle = BorderStyle.None;
}
}
private void MainMaster_Load(object sender, EventArgs e)
{
foreach (var control in Controls)
{
if (sender is PictureBox)
{
PictureBox pb=new PictureBox();
pb.Name = sender.ToString();
pb.MouseHover += new System.EventHandler(this.pictureBoxMouseHover);
pb.MouseLeave += new System.EventHandler(this.pictureBoxMouseHover);
}
}
}
我找不到这个错误;请帮帮我。
答案 0 :(得分:2)
dbaseman是对的,你在迭代控件时使用了错误的变量。
但是如果你想将这种行为添加到所有图片框中,那么更好的解决方案是创建自定义图片框,只需将其放在表单上:
public class MyPictureBox : PictureBox
{
protected override void OnMouseHover(EventArgs e)
{
BorderStyle = BorderStyle.FixedSingle;
base.OnMouseHover(e);
}
protected override void OnMouseLeave(EventArgs e)
{
base.OnMouseLeave(e);
BorderStyle = BorderStyle.None;
}
}
创建此类,编译应用程序并将这些自定义图片框从工具箱拖到表单中。当鼠标悬停在图片框上时,它们都将显示边框。
答案 1 :(得分:1)
我认为错误在于:
foreach (var control in Controls)
{
if (sender is PictureBox)
发件人将成为窗口。我认为您打算控制。
foreach (var control in Controls)
{
if (control is PictureBox)