Error retriving the image from database and display image in picturebox

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C#

ASP.NET

SQL-Server

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Dear All ,

I have one textbox1 and one picturebox , i need to retrive the image from database and display this image in picturebox.

my code is given below....

private void textBox1_TextChanged(object sender, EventArgs e)
       {
             if (textBox1.TextLength == 4)
               {
                   SqlConnection ConnCMS = new SqlConnection();
                   string SqlConnectionString;
                   SqlConnectionString = "Server=10.1.1.28; Database=cms;uid=sa; pwd=samesame;";
                   ConnCMS.ConnectionString = SqlConnectionString;
                   SqlCommand cmdSelect = new SqlCommand("select FingerImage from EmployeeFinger where EmployeeNo=@ID", ConnCMS);
                   cmdSelect.Parameters.Add("@ID", SqlDbType.NVarChar).Value = textBox1.Text;
                   SqlDataAdapter sqlDA = new SqlDataAdapter(cmdSelect);
                   DataSet ds = new DataSet();
                   sqlDA.Fill(ds, "EmployeeFinger");
                   int c = ds.Tables["EmployeeFinger"].Rows.Count;
                   if (c > 0)
                   {
                       Byte[] byteBLOBData = new Byte[0];
                       byteBLOBData = (Byte[])(ds.Tables["EmployeeFinger"].Rows[0]["FingerImage"]);
                       MemoryStream stmBLOBData = new MemoryStream(byteBLOBData);
                       pictureBox1.Image = Image.FromStream(stmBLOBData);

                   }
                   ConnCMS.Close();
               }
           }

but its give me the Error "Parameter is not valid" at the last line pictureBox1.Image = Image.FromStream(stmBLOBData);

please help me

thanks