ASP.NET C#, Access div element from nested Listview Code Behind

Question

I'm trying to get the (div id="imgGallery" runat="server") element from nested Listview to modify the class name programatically.

<asp:ListView ID="ListView1" runat="server" ItemPlaceholderID="itemPlaceHolder1" onitemdatabound="ListView1_ItemDataBound">
<ItemTemplate>
    <asp:Label ID="VersionId" runat="server" Text='<%# Eval("VersionId") %>' Visible="false" />
    <asp:Label ID="MenuContent" runat="server" Text='<%# Eval("ContentText") %>' />
    <br />
    <asp:ListView ID="ListView2" runat="server" ItemPlaceholderID="itemPlaceHolder2">
        <ItemTemplate>
            <div id="imgGallery" class="images" runat="server">
                <asp:Image ID="Image1" ImageUrl='<%# Eval("ImageUrl") %>' runat="server" ToolTip="Text" />
            </div>
        </ItemTemplate>
        <LayoutTemplate>
            <asp:PlaceHolder runat="server" ID="itemPlaceHolder2"></asp:PlaceHolder>
        </LayoutTemplate>
    </asp:ListView>
</ItemTemplate>
<LayoutTemplate>
    <asp:PlaceHolder runat="server" ID="itemPlaceHolder1"></asp:PlaceHolder>
</LayoutTemplate>
<ItemSeparatorTemplate>
    <br />
    <hr />
    <br />
</ItemSeparatorTemplate>

on my code behind I tried the code below which doesn't work... and I tried different ways but can't find solution.

    ListView listView2 = (ListView)ListView1.FindControl("ListView2");
HtmlGenericControl mydiv = (HtmlGenericControl)listView2.FindControl("imgGallery");
mydiv.Attributes.Clear();

The ListView is inside a tab, when I move from tab0 to tab1 I need to remove the class attribute from div element. — user1567683
– user1567683, Commented Aug 1, 2012 at 6:25

DotNetter · Accepted Answer · 2012-08-01 06:20:55Z

1

You sholuld work with inner element of databound controls on databinding stage or iterating through row collection (called databind method before)

answered Aug 1, 2012 at 6:20

DotNetter

4262 gold badges6 silver badges21 bronze badges

Sign up to request clarification or add additional context in comments.

5 Comments

user166390 Over a year ago

The template'ed controls in the ASP.NET markup can be accessed after their Init event, which is called when the template (and thus the markup) is "instantiated". It doesn't directly align with data-binding (but it could be the result of it), but is a useful concept nevertheless ..

user1567683 Over a year ago

So that's the only way? there's no way to get the div element directly?

user166390 Over a year ago

@user1567683 See my comment about Init (of controls inside..)

user1567683 Over a year ago

I'm sorry pst, I'm very new at this (I started 2 months ago). Do you know a link or could you give me a sample? I really appreciate that you reply

DotNetter Over a year ago

i use only that way. And cann't figure it out how to get access to template markup object without creating custom control inherited to ListView. Maybe Pst will provide a bit of code.

Collectives™ on Stack Overflow

ASP.NET C#, Access div element from nested Listview Code Behind

1 Answer 1

5 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

5 Comments

Your Answer

Sign up or log in

Post as a guest

Related