WajeehaJaved

Code: public void insertUsercert(byte [] cert,string Name) { SqlConnection conn = new SqlConnection(cons); try { conn.Open(); } catch (Exception ex) { MessageBox.Show("Exception" + ex.ToString()); } SqlCommand cmd = new SqlCommand(); SqlParameter cert2 = new SqlParameter("@cert1", System.Data.SqlDbType.VarBinary, cert.Length); cert2.Value = cert; cmd.Parameters.Add(cert2); cmd.CommandText = @"Update [user] Set UserCertificate=@cert1" + "where UserName='" + Name + "'"; //error at the @cert1 cmd.Connection = conn; cmd.ExecuteNonQuery(); conn.Close(); } }