Rotating image through data binding

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C#3.0

C#

i have four textboxes and one picturebox. i want to bind data from ms sql database to c# windows form and want to rotate with buttons(previous,next,first,last)for it i have done this code so far. all records are properly coming from database and rotating. i have problem only with image. it is not rotating . like all other records i also want to bind image from database and want to rotate like other records with these buttons(Previous,next,first,last).

using System;
using System.Collections.Generndic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Data.SqlClient;

namespace Picbox_working
{
public partial class Form1 : Form
{
SqlConnection con=new SqlConnection("Data Source=SHREY\\SQLEXPRESS;Initial Catalog=MyRecords;Integrated Security=True");
SqlCommand cmd = new SqlCommand();
DataSet ds = new DataSet();
DataTable dt = new DataTable();
SqlDataAdapter adp = new SqlDataAdapter();

public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{
con.Open();
cmd = new SqlCommand("select * from Add_New_Staff", con);
adp = new SqlDataAdapter(cmd);
adp.Fill(ds);
textBox1.DataBindings.Add("Text", ds.Tables[0], "stid");
textBox2.DataBindings.Add("Text", ds.Tables[0], "sname");
textBox3.DataBindings.Add("Text", ds.Tables[0], "addr");
textBox4.DataBindings.Add("Text", ds.Tables[0], "mobil");
Byte[] data = (Byte[])(ds.Tables[0].Rows[0]["imgdata"]);
MemoryStream mem = new MemoryStream(data);
pictureBox1.Image = Image.FromStream(mem);
}

private void previous_button_Click(object sender, EventArgs e)
{
this.BindingContext[ds.Tables[0]].Position -= 1;
}

private void next_button_Click(object sender, EventArgs e)
{
this.BindingContext[ds.Tables[0]].Position += 1;
}

private void first_button_Click(object sender, EventArgs e)
{
this.BindingContext[ds.Tables[0]].Position = 0; 
}

private void last_button_Click(object sender, EventArgs e)
{
this.BindingContext[ds.Tables[0]].Position = this.BindingContext[ds.Tables[0]].Count - 1;
}

}
}