C# 图片存入SQL Server数据库

　　　　　　　OpenFileDialog openfiledialog1 = new OpenFileDialog();

            if (openfiledialog1.ShowDialog() == DialogResult.OK)

            {

                textBox1.Text = openfiledialog1.FileName;//文件路径

            }



            string imageName = DateTime.Now.ToString("yyyymmddhhMMss");//生成文件名到数据库



            

            FileStream fs = new FileStream(textBox1.Text, FileMode.Open);

            BinaryReader br = new BinaryReader(fs);

            Byte[] byData = br.ReadBytes((int)fs.Length);//生成二进制流

            fs.Close();

            //将图片转化为二进制流,存入数据库

            string conn = "server=.;database=ImageDB;Uid=sa;Pwd=1234 ";

            SqlConnection myconn = new SqlConnection(conn);

            myconn.Open();

            string str = "insert into ImageFile (ImageName,ImageContext) values(@name,@file)";

            SqlCommand mycomm = new SqlCommand(str, myconn);

            mycomm.Parameters.Add("@file", SqlDbType.Binary, byData.Length);

            mycomm.Parameters["@file"].Value = byData;



            mycomm.Parameters.Add("@name", SqlDbType.NVarChar,50);

            mycomm.Parameters["@name"].Value = imageName;

            mycomm.ExecuteNonQuery();//将二进制流写入数据库，对应数据库IMAGE类型

            myconn.Close();



            //将二进制流转化为IMAGE

            str = "select top 1 ImageContext from ImageFile where ImageName='" + imageName + "'";

            myconn = new SqlConnection(conn);

            SqlDataAdapter sda = new SqlDataAdapter(str, conn);

            DataSet myds = new DataSet();

            myconn.Open();

            sda.Fill(myds);

            myconn.Close();

            Byte[] Files = (Byte[])myds.Tables[0].Rows[0]["ImageContext"];

            MemoryStream ms = new MemoryStream(Files);

            Image i = Image.FromStream(ms);

            pictureBox1.Image = i;//绑定到pictureBox1控件上