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binding to a nested repeater

Hi,

I have the repeater code below which contains a nested repeater also.

To bind to the first repeater I simply use:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Dim groups As List(Of PaymentGroup) = Nothing

        If Not Page.IsPostBack Then
            groups = HelperReport.ExceptionsForBlankAuthInDate

            rptResults.DataSource = groups
            rptResults.DataBind()

        End If
    End Sub

This works fine.

On the PaymentGroup object however is a property Invoices which is a list(of Invoice)

I need this property to be bound to the nested repeater.

I know I would do this on the itemdatabound method of the top level repeater, but how do I reference the invoice property as I can't put it in a hidden field etc?

I don't want to go back off to the database and get it as it is a report and is likely to not run quickly over time.

Help?!
<asp:Repeater ID="rptResults" runat="server" >                                       
        <ItemTemplate>
        <tr>
            <td>                       
                <%#DataBinder.Eval(Container.DataItem, "DocRef")%>
            </td>
            <td>
                <%#DataBinder.Eval(Container.DataItem, "Payee.Name")%>
            </td>
            <td>
                <%#DataBinder.Eval(Container.DataItem, "PaymentAmount")%>
           </td>                                                     
           <td>
                <%#DataBinder.Eval(Container.DataItem, "ProposedPaymentDate")%>
           </td>                                                     
           <td>
                <%#DataBinder.Eval(Container.DataItem, "DateAuthOut")%>
           </td>                  
           <td>
                <table>
                    <asp:Repeater ID="rptInvoices" runat="server" >                                       
                        <ItemTemplate>
                            <tr>
                                <td>                       
                                    <%#DataBinder.Eval(Container.DataItem, "InvoiceNumber")%>
                                </td>
                                <td>
                                    <%#DataBinder.Eval(Container.DataItem, "InvoiceAmount")%>
                                </td>                                                                                                           
                            </tr>            
                        </ItemTemplate>                            
                    </asp:Repeater>
                </table>
           </td>                                                                                  
        </tr>            
        </ItemTemplate>                            
    </asp:Repeater>

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scm0sml
Asked:
scm0sml
1 Solution
 
Carl TawnSystems and Integration DeveloperCommented:
You are right that you use the ItemDataBound event. What you need to do is grab the item being bound from the arguments passed to the event. You can then use that to bind to the inner repeater:
    Protected Sub rptResults_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.RepeaterItemEventArgs) Handles OuterRepeater.ItemDataBound

        Dim pg As PaymentGroup = CType(e.Item.DataItem, PaymentGroup)

        Dim op As Repeater = CType(e.Item.FindControl("rptInvoices"), Repeater)
        op.DataSource = pg.Invoices        op.DataBind()

    End Sub

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scm0smlAuthor Commented:
perfect!!

thanks for that!
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