passing an object as a parameter in ObjectDataSource

Question

I have a ObjectDataSource on a page which I am using to populated a GridView.  The SelectMethod of the ObjectDataSource accepts a single parameter of TypeclsPerformSearchCriteria.

The problem I am having is that I have effectively hacked the ObjectDataSource to get it to behave properly and I was wondering if there was perhaps a more elegant way to achieve what I'm after.

The aspx script:

        <asp:ObjectDataSource ID="PerformSearchDataSource" runat="server" OldValuesParameterFormatString="original_{0}"

            SelectMethod="PerformSearchTo_OnlyResultsData" TypeName="CurrentAccountsWebServiceCalls">

            <SelectParameters>

                <asp:ControlParameter ControlID="txtPageNo" Name="p_PageNo" DefaultValue="0" Type="Int32" />

                <asp:ControlParameter ControlID="ddlOrderByOption" Name="p_OrderByOption" DefaultValue="1"

                    Type="Int32" />

                <asp:ControlParameter ControlID="elbAccountType" PropertyName="EnumeratorValue" Name="p_AccountType"

                    DefaultValue="1" />

                <asp:ControlParameter ControlID="txtResultsPerPage" Name="p_ResultsPerPage" DefaultValue="10"

                    Type="Int32" />

                <asp:ControlParameter ControlID="chkPackagedAccountOnlyTick" Name="p_chkPackagedAccountOnlyTick"

                    Type="Int32" />

                <asp:ControlParameter ControlID="ddlOrderByOption" Name="p_BestBuyOption" Type="Int32" />

            </SelectParameters>

        </asp:ObjectDataSource>

And that seems to required to pick up changes on the controls but then I effectively scrap the values in the code behind:

Protected Sub PerformSearchDataSource_Selecting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.ObjectDataSourceSelectingEventArgs) Handles PerformSearchDataSource.Selecting

        Dim SearchCriteria As CurrentAccountsWebService.clsPerformSearchCriteria



        Try

            SearchCriteria = New CurrentAccountsWebService.clsPerformSearchCriteria



            SearchCriteria.PageNo = CInt(txtPageNo.Text)

            SearchCriteria.OrderByOption = CType(Me.ddlOrderByOption.SelectedValue, CurrentAccountsWebService.OrderByOption)

            SearchCriteria.AccountType = CType(Me.elbAccountType.EnumeratorValue, CurrentAccountsWebService.AccountTypes)

            SearchCriteria.ResultsPerPage = CInt(txtResultsPerPage.Text)

            SearchCriteria.PackagedAccountOnlyTick = CInt(chkPackagedAccountOnlyTick.Checked)

            SearchCriteria.BestBuyOption = CType(ddlBestBuyOption.SelectedValue, CurrentAccountsWebService.BestBuyOption)



            e.InputParameters.Clear()



            e.InputParameters("p_Criteria") = SearchCriteria



        Catch ex As Exception

            Throw

        End Try

    End Sub

As I said this code does what I need it to, only it feels a tad "Hacky" if anyone suggest a more elegant solution I'd be greatfull.

Regards

Paul

Answer 1

Shameless bump.

Answer 2

You'll need to post it at http://forums.asp.net for quicker and better responses, where ASP.NET experts live in.

ASP.NET Forums » General ASP.NET » Data Presentation Controls Forum

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