c#找Panel父容器内的所有控件

/// <summary>
        /// 通过panel找Lable和img 
        /// </summary>
        /// <param name="p">panel</param>
        /// <param name="type">1移上 2移出</param>
        public void PanelFindLableAndImg(Panel p, int type)
        {
            foreach (var item in p.Controls)
            {
                if (item is Label)
                {
                    Label lb = (Label)item;
                    if (type == 1)
                    {
//鼠标移上去 变白色
                        lb.ForeColor = Color.White;
                    }
                    else
                    {
//移除去 变自定义颜色
                        lb.ForeColor = Color.FromArgb(32, 31, 53);
                    }
                }
                if (item is PictureBox)
                {
                    PictureBox pb = (PictureBox)item;
                    if (type == 1)
                    {
//移上去换图
                        pb.Image = Image.FromFile(@"../../UIimg/13/bai_sanjiao.gif");
                    }
                    else
                    {
//移出去换图
                        pb.Image = Image.FromFile(@"../../UIimg/13/hei_sanjiao.gif");
                    }
                }
            }
        }

if (item is PictureBox)  //这里判断   把PictureBox换成你的控件类型

PictureBox pb = (PictureBox)item;   // 并且把item转成你的控件类型