C#将图片存放到SQL SERVER数据库中的方法

第一步： 

/获取当前选择的图片

this.pictureBox1.Image = Image.FromStream(this.openFileDialog1.OpenFile());

//获取当前图片的路径

string path = openFileDialog1.FileName.ToString();

//将制定路径的图片添加到FileStream类中   

FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read);

//通过FileStream对象实例化BinaryReader对象

BinaryReader br = new BinaryReader(fs);

//通过BinaryReader类对象的ReadBytes()方法将FileStream类对象转化为二进制数组

byte[] imgBytesIn = br.ReadBytes(Convert.ToInt32(fs.Length));

第二步  将图片添加到数据库中

//将图片添加到数据库中

string sql="insert into pic values(@pic)";

SqlParameter[] param = new SqlParameter[] { new SqlParameter("@pic", imgBytesIn) };

DBHelper.GetExecuteQuery(sql, param);

第三步 将图片从数据库中取出

//将图片从数据库中取出

string sql="select * from pic where id=0";

SqlDataReader reader = DBHelper.GetExecuteReader(sql, null);

MemoryStream mss = null;

if (reader.Read())

{

  byte[] bytes = (byte[])reader["pic"];

  mss = new MemoryStream(bytes);

}

this.pictureBox2.Image = Image.FromStream(mss);