Loop Loop C# Asp components

Question

You’d have to do a loop loop in this case?

PaperBLL paperBLL = new PaperBLL();
List<PaperEO> papers = paperBLL.SelectPapers();
HyperLink1.ImageUrl = "~/App_Themes/MultiMercadoLibertyExclusiva/Capas/" + papers.First(x => x.id == 1).capa;
HyperLink2.ImageUrl = "~/App_Themes/MultiMercadoLibertyExclusiva/Capas/" + papers.First(x => x.id == 2).capa;
HyperLink3.ImageUrl = "~/App_Themes/MultiMercadoLibertyExclusiva/Capas/" + papers.First(x => x.id == 3).capa;
HyperLink4.ImageUrl = "~/App_Themes/MultiMercadoLibertyExclusiva/Capas/" + papers.First(x => x.id == 4).capa;
HyperLink5.ImageUrl = "~/App_Themes/MultiMercadoLibertyExclusiva/Capas/" + papers.First(x => x.id == 5).capa;
HyperLink6.ImageUrl = "~/App_Themes/MultiMercadoLibertyExclusiva/Capas/" + papers.First(x => x.id == 6).capa;
HyperLink7.ImageUrl = "~/App_Themes/MultiMercadoLibertyExclusiva/Capas/" + papers.First(x => x.id == 7).capa;
HyperLink8.ImageUrl = "~/App_Themes/MultiMercadoLibertyExclusiva/Capas/" + papers.First(x => x.id == 8).capa;
HyperLink9.ImageUrl = "~/App_Themes/MultiMercadoLibertyExclusiva/Capas/" + papers.First(x => x.id == 9).capa;
HyperLink10.ImageUrl = "~/App_Themes/MultiMercadoLibertyExclusiva/Capas/" + papers.First(x => x.id == 10).capa;
HyperLink11.ImageUrl = "~/App_Themes/MultiMercadoLibertyExclusiva/Capas/" + papers.First(x => x.id == 11).capa;
HyperLink12.ImageUrl = "~/App_Themes/MultiMercadoLibertyExclusiva/Capas/" + papers.First(x => x.id == 12).capa;

(...)

<ul>
    <li><asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/01.png" rel="Shadowbox[Vocation]"><asp:Image ID="Image2" runat="server" Width="131" ImageUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/01.png" /></asp:HyperLink></li>
    <li><asp:HyperLink ID="HyperLink2" runat="server" NavigateUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/02.png" rel="Shadowbox[Vocation]"><asp:Image ID="Image3" runat="server" Width="131" ImageUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/02.png" /></asp:HyperLink></li>
    <li><asp:HyperLink ID="HyperLink3" runat="server" NavigateUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/03.png" rel="Shadowbox[Vocation]"><asp:Image ID="Image4" runat="server" Width="131" ImageUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/03.png" /></asp:HyperLink></li>
    <li><asp:HyperLink ID="HyperLink4" runat="server" NavigateUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/04.png" rel="Shadowbox[Vocation]"><asp:Image ID="Image5" runat="server" Width="131" ImageUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/04.png" /></asp:HyperLink></li>
    <li><asp:HyperLink ID="HyperLink5" runat="server" NavigateUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/05.png" rel="Shadowbox[Vocation]"><asp:Image ID="Image6" runat="server" Width="131" ImageUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/05.png" /></asp:HyperLink></li>
    <li><asp:HyperLink ID="HyperLink6" runat="server" NavigateUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/06.png" rel="Shadowbox[Vocation]"><asp:Image ID="Image7" runat="server" Width="131" ImageUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/06.png" /></asp:HyperLink></li>
    <li><asp:HyperLink ID="HyperLink7" runat="server" NavigateUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/07.png" rel="Shadowbox[Vocation]"><asp:Image ID="Image8" runat="server" Width="131" ImageUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/07.png" /></asp:HyperLink></li>
    <li><asp:HyperLink ID="HyperLink8" runat="server" NavigateUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/08.png" rel="Shadowbox[Vocation]"><asp:Image ID="Image9" runat="server" Width="131" ImageUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/08.png" /></asp:HyperLink></li>
    <li><asp:HyperLink ID="HyperLink9" runat="server" NavigateUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/09.png" rel="Shadowbox[Vocation]"><asp:Image ID="Image10" runat="server" Width="131" ImageUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/09.png" /></asp:HyperLink></li>
    <li><asp:HyperLink ID="HyperLink10" runat="server" NavigateUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/10.png" rel="Shadowbox[Vocation]"><asp:Image ID="Image11" runat="server" Width="131" ImageUrl="~/App_Themes/MultiMercadoLibertyExclusiva/Capas/10.png" /></asp:HyperLink></li>
</ul>

Answer 1

Maybe it’s a situation to be solved with a control Repeater. You can set any class that implements Ienumerable or Ilistsource as data source.

During the event ItemDataBound you will have at your disposal the collection’s member object and all controls present in the Itemtemplate.

Pagina.aspx

<form id="form1" runat="server">
    <asp:Repeater ID="Repeater1" runat="server" OnItemDataBound="Repeater1_ItemDataBound">
        <ItemTemplate>
            <asp:HyperLink ID="meuHyperLink" runat="server">HyperLink</asp:HyperLink>
        </ItemTemplate>
    </asp:Repeater>
</form>

Pagina.aspx.Cs

    protected void Page_Load(object sender, EventArgs e)
    {
        var minhaColecao = new List<string>(); //Assuma como sendo sua colecao.

        Repeater1.DataSource = minhaColecao;
        Repeater1.DataBind();
    }

    protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
    {
        var item = (string) e.Item.DataItem; // No seu caso, substitua o string cast por PaperEO.
        var controle = (HyperLink)e.Item.FindControl("meuHyperLink");
        controle.ImageUrl = "~/App_Themes/MultiMercadoLibertyExclusiva/Capas/" + item;
    }

Answer 2

Use a generic function:

private IEnumerable<T> GetControlList<T>(ControlCollection controlCollection)
where T : Control
{
    foreach (varcontrol in controlCollection)
    {
        if (control is T)
            yield return (T)control;
    }
}

Use:

foreach (var link in GetControlList<HyperLink>(Page.Controls))
{
    // Coloque a lógica aqui.
}