I am getting this error.Both DataSource and DataSourceID are defined on 'GridView1'. Remove one definition

try
        {
            SqlParameter[] check_login_details = new SqlParameter[]
                {
                    new SqlParameter("@usertype","Distributor"),
                    new SqlParameter("@User_details","manit.ashish"),
                    new SqlParameter("@Password","12345"),
                    new SqlParameter("@ErrorResult",SqlDbType.Int),
                };
            check_login_details[3].Direction = ParameterDirection.Output;

            DataSet ds = SqlHelper.GetDataSet(SqlHelper.mainConnectionString, CommandType.StoredProcedure, "UDP_CHECK_USERLOGIN_DETAILS", check_login_details);
            GridView1.DataSource = ds;
            GridView1.DataSourceID = String.Empty;
            GridView1.DataBind();
            ddl_type.SelectedItem.Text = "Select";
            txt_pwd.Text = "";
            txt_uname.Text = "";
        }
        catch (Exception ex)
        {
            lblerror.Text = Convert.ToString(ex);
        }

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false">
                    <Columns>
                        <asp:BoundField HeaderText="loginid" DataField="LOGINID" />
                        <asp:BoundField HeaderText="EMAILID" DataField="EMAILID" />
                    </Columns>
                </asp:GridView>