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ListView of UserControls, how to access UserControls on Page Command

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ListView
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Patrick
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Patrick asked on 18 Oct 2013, 02:23 PM
Hi,
 I have a Radlistview of my own UserControls.

 Inside the RadListview i have some paging buttons. Either when the ItemCommand is fired (and it equals("Page")) or when the PageIndexChanged event is fired, i need to access my UserControls on this page.

The why: currently, each of my user controls have a Save button. That works fine. however, my client would now like all of my user controls to be saved when they hit any of the paging buttons.
How can i do that? I can't figure out how to access my DataItems (UserControlClass) from within either the PageIndexChanged or ItemCommand Events - partly because the paging buttons are themselves not a Usercontrol.

<telerik:RadListView ID="lvWorkGroups" runat="server"
        DataKeyNames="ID, Name"
        OnItemDataBound="lvWorkGroups_ItemDataBound"
        onneeddatasource="lvWorkGroups_NeedDataSource"
        AllowPaging="True" PageSize="1"
        ItemPlaceholderID="PlaceHolder1"
         onpageindexchanged="lvWorkGroups_PageIndexChanged"
         onpagesizechanged="lvWorkGroups_PageSizeChanged"
         ondatabound="lvWorkGroups_DataBound"
          onitemcommand="lvWorkGroups_ItemCommand">
         
        <LayoutTemplate>
                <asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder>
 
                <div class="workGroup2" style="text-align:center">
                    <div style="margin:auto;">
                        <asp:Button runat="server" ID="btnFirst" CommandName="Page" CommandArgument="First"
                            Text="First" Enabled="<%#Container.CurrentPageIndex > 0 %>" CausesValidation="false"></asp:Button>
                        <asp:Button runat="server" ID="btnPrev" CommandName="Page" CommandArgument="Prev"
                            Text="Prev" Enabled="<%#Container.CurrentPageIndex > 0 %>" CausesValidation="false"></asp:Button>
                        <span style="vertical-align: middle; line-height:22px; display:inline-block;">Page
                            <%#Container.CurrentPageIndex + 1 %>
                            of
                            <%#Container.PageCount %></span>
                        <asp:Button runat="server" ID="btnNext" CommandName="Page" CommandArgument="Next"
                            Text="Next" Enabled="<%#Container.CurrentPageIndex + 1 < Container.PageCount %>" CausesValidation="false">
                        </asp:Button>
                        <asp:Button runat="server" ID="btnLast" CommandName="Page" CommandArgument="Last"
                            Text="Last" Enabled="<%#Container.CurrentPageIndex + 1 < Container.PageCount %>" CausesValidation="false">
                        </asp:Button>
                    </div>
                </div>
        </LayoutTemplate>
 
        <ItemTemplate>
           <uc1:InspectionWorkGroup ID="InspectionWorkGroup1" runat="server" OnworkGroupSaved="wg_workGroupSaved"/>
        </ItemTemplate>
    </telerik:RadListView>

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Patrick
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answered on 21 Oct 2013, 04:26 PM
anyone, have any ideas?
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Eyup
Telerik team
answered on 23 Oct 2013, 08:23 AM
Hi Patrick,

Since you have only 1 item on the page at a time, it is safe to use the following approach to access the inner content of the user control:
protected void lvWorkGroups_ItemCommand(object sender, RadListViewCommandEventArgs e)
{
    if (e.CommandName == RadListView.PageCommandName)
    {
        InspectionWorkGroup workGroup = lvWorkGroups.Items[0].FindControl("InspectionWorkGroup1") as InspectionWorkGroup;
        // execute custom logic to update the work group
    }
}

Hope this helps. Please give it a try and let me know if it works for you.

Regards,
Eyup
Telerik
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Eyup
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