Object DataSource with Grid View(Asp.net & c# code)

Object DataSource with Grid View(Asp.net & c# code)

Asp.net(code)

<tr>

                        <td>

                            <asp:GridView CellPadding="4" ID="grvCompanyList" AllowPaging="true" PageSize="10"

                                runat="server" AutoGenerateColumns="false" Width="100%" DataSourceID="odsCompany"

                                DataKeyNames="Id" EmptyDataText="No Records Found...">

                                <Columns>

                                    <asp:TemplateField HeaderText="Company Detail">

                                        <ItemTemplate>

                                            <asp:HiddenField ID="hdnId" Value='<%# Eval("Id") %>' runat="server" />

                                           <%-- This is link button click used for edit, id value is taken from the above hidden control--%>

                                            <asp:LinkButton ID="lnkName" runat="server" Text='<%# Eval("Name") %>' OnClick="lnkName_Click"></asp:LinkButton>

                                        </ItemTemplate>

                                    </asp:TemplateField>

                                </Columns>

                            </asp:GridView>

                            <%--IntegenAccounts.Business.CompanyManager is business logic layer--%>

                            <%--GetAllCompaniesPagedBySearchKey & GetTotalCountForAllCompaniesBySearchKey are methods in business logic layer--%>

                            <asp:ObjectDataSource ID="odsCompany" runat="server" TypeName="IntegenAccounts.Business.CompanyManager"

                                SelectMethod="GetAllCompaniesPagedBySearchKey" SelectCountMethod="GetTotalCountForAllCompaniesBySearchKey"

                                MaximumRowsParameterName="maximumRows" StartRowIndexParameterName="startRowIndex"

                                EnablePaging="True">

                                <SelectParameters>

                                    <asp:ControlParameter ControlID="txtSearch" Name="CompanyName" Type="string" />

                                    <asp:Parameter Name="orderBy" Type="string" DefaultValue="Name" />

                                    <asp:Parameter Name="startRowIndex" Type="Int32" />

                                    <asp:Parameter Name="maximumRows" Type="Int32" />

                                </SelectParameters>

                            </asp:ObjectDataSource>

                        </td>

                    </tr>

Code Behind(c#)

        public List<Company> GetAllCompaniesPagedBySearchKey(string CompanyName = default(string), string orderBy = default(string), int startRowIndex = default(int), int maximumRows = default(int))

        {

            if (CompanyName.IsNull())

                return GetAllCompaniesPaged(orderBy, startRowIndex, maximumRows);

            if (string.IsNullOrEmpty(orderBy))

                orderBy = "Id";

            if (startRowIndex < 0)

                throw (new ArgumentOutOfRangeException("startRowIndex"));

            if (maximumRows < 0)

                throw (new ArgumentOutOfRangeException("maximumRows"));

            return (

                    from Company in

                        _DatabaseContext.Companies

                        .DynamicOrderBy(orderBy)

                    where (Company.Name.Contains(CompanyName))

                    select Company

                    )

                    .Skip(startRowIndex)

                    .Take(maximumRows)

                    .ToList();

        }

        public int GetTotalCountForAllCompaniesBySearchKey(string CompanyName = default(string), string orderBy = default(string), int startRowIndex = default(int), int maximumRows = default(int))

        {

            if (CompanyName.IsNull())

                return GetTotalCountForAllCompanies(orderBy, startRowIndex, maximumRows);

            return _DatabaseContext.Companies.Count(Company => Company.Name.Contains(CompanyName));

        }