方法或具体代码都可以
就是QQ头像那样，不知道怎么将头像图片存到数据库并取出来
还望大家不吝赐教呀

一般使用的应该是转化成二进制储存  具体等高手付代码吧

存放的二进制数据如下：
                string fullpath = openFileDialog1.FileName;
                FileStream fs = new FileStream(fullpath, FileMode.Open);
                byte[] imagebytes = new byte[fs.Length];
                BinaryReader br = new BinaryReader(fs);
                imagebytes = br.ReadBytes(Convert.ToInt32(fs.Length));

读取如下:
           byte[] imagebytes = null;
            //从数据库中读取出数据赋值给imagebytes  ----
            MemoryStream ms = new MemoryStream(imagebytes);
            Bitmap bmpt = new Bitmap(ms);
            pictureBox1.Image = bmpt;

期间我省略了写入数据库跟从数据库取出数据的代码。因为这个比较简单。

也可以存路径呀！

我做了个数据压缩、编码的示例。
用的是Base64编码 Gzip压缩。

学习.                        

学习学习

不错不错，学习了

存图片进去：
            openFileDialog1.ShowDialog();
            if (openFileDialog1.FileName.Trim() != null)
            {
                openFileDialog1.Filter = "(图片*jpg)|*jpg";
                _fileName = openFileDialog1.FileName;
                FileStream fs = new FileStream(_fileName, FileMode.OpenOrCreate);
                byte[] data = new byte[fs.Length];
                fs.Read(data, 0, data.Length);
                fs.Close();
                try
                {
                    SqlConnection conn = new SqlConnection(ConnStr);
                    conn.Open();
                    SqlCommand com = new SqlCommand("insert into Test(TestID,TestPic,TestName) values(1,@TestPic,'" + _fileName + "')", conn);
                    com.Parameters.Add("TestPic", SqlDbType.Image);
                    com.Parameters["TestPic"].Value = data;
                    int intFalg = com.ExecuteNonQuery();
                    if (intFalg == 1)
                    {
                        MessageBox.Show("保存图片成功");
                    }
                    else
                    {
                        MessageBox.Show("保存图片失败");
                    }
                    conn.Close();
                }
                catch(Exception ex)
                {
                    MessageBox.Show(ex.ToString());
                }

读取图片：
            string sql = "select TestPic from Test where TestID=1";
            SqlConnection conn = new SqlConnection(ConnStr);
            conn.Open();
            SqlCommand cmd = new SqlCommand(sql, conn);
            SqlDataReader dr = cmd.ExecuteReader();
            if (dr.Read())
            {
                byte[] mydata = (byte[])dr[0];
                MemoryStream myStream = new MemoryStream(mydata);
                Bitmap bit = new Bitmap(myStream);
                pictureBox1.Image = bit;
                myStream.Close();
            }
            dr.Close();
            conn.Close();


数据库中存图片时用image类型就可以了   前几天正好做了这个方面的东西    看看吧

楼上的，我按照你的代码执行，出现错误。错误信息：文件“F:\174597.jpg”正由另一进程使用，因此该进程无法访问该文件。怎么解决？