How to load image from SQL Server into picture box?

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C#

hi everybody.
i want place a user image into picturebox when user login.its done in windows application using c#.
here is my code:

SqlCommand cmd1 = new SqlCommand("SELECT * FROM forstepb WHERE id =" + id + "", conn);

     SqlDataAdapter adap = new SqlDataAdapter(cmd1);
     DataSet ds1 = new DataSet();
     adap.Fill(ds1,"forstepb");// all work fine
     Byte[] byteBLOBData = new Byte[0];// code is skip in that line
     byteBLOBData = (Byte[])(ds1.Tables[0].Rows[0]["passimg"]);
     MemoryStream stmBLOBData = new MemoryStream(byteBLOBData);
     pictureBox1.Image = Image.FromStream(stmBLOBData);

how can i use in that situation.
pls...