如何将已知图像存入到数据库中，以及如何从数据库中取出图像
我是新手，还请详细一点，谢谢各位了

[解决办法]
Response.BinaryWrite(company.Logo);
[解决办法]
1. openFileDialog 控件 如何打开图形文件 并得到Image格式的文件

openFileDialog1.ShowDialog();
string str = openFileDialog1.FileName; //图片的路径
pictureBox1.Image = Image.FromFile(str);//图像转换Image并用PictureBox控件显示

2.如何把 pictureBox1.Image 中Image对象转换成byte[]

Image image = this.pictureBox1.Image;
MemoryStream ms = new MemoryStream();
BinaryFormatter bf = new BinaryFormatter();
bf.Serialize(ms, (object)image);
ms.Close();
byte[] bytes = ms.ToArray();

3.如何把一个数据库文件Object转化成Image类型
(1) 读取数据库：
SqlConnection conn = DbHelp.RerurnConn();
SqlCommand comm = new SqlCommand("select imageico from GoodMessage where id=1", conn);
SqlDataReader read = comm.ExecuteReader();
if (read.Read())
return read["imageico"]; //返回Object对象

(2) Object 转化 Image类型

byte[] bytes = (byte[])obj1; //obj1 从（1）中得到的Object
MemoryStream ms1 = new MemoryStream(bytes, 0, bytes.Length);
BinaryFormatter bf1 = new BinaryFormatter();
object obj = bf1.Deserialize(ms1);
ms1.Close();
this.pictureBox2.Image = (Image)obj;