How to add variable + databinding to ASP.NET link navigateurl?

Question

Let's say I have a repeater with the code:

<ItemTemplate>
    <asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl='<%#DataBinder.Eval(Container.DataItem, "FileLeafRef")%>'>
        <h2><%# DataBinder.Eval(Container.DataItem, "Title")%></h2>     
    </asp:HyperLink>                
</ItemTemplate>

The FileLeadRef variable only contains the page name though (like test.aspx and not the full URL which I need). I can get the first part of the URL in a variable in page_load so I need to do something like:

NavigateUrl='<%myVariable + "/"%><%#DataBinder.Eval(Container.DataItem, "FileLeafRef")%>' but it obviously doesn't work and a have tried a few varieties without success.

Any suggestions?

Thanks in advance.

SLaks · Accepted Answer · 2011-10-18 23:40:27Z

1

You can write

<%# myVariable + "/" + DataBinder.Eval(Container.DataItem, "FileLeafRef")%>

answered Oct 18, 2011 at 23:40

SLaks

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2 Comments

user997685 Over a year ago

With that I get the name 'siteUrl' does not exist in the current context so I must be missing something.

SLaks Over a year ago

@user: Make it a field in the class.

rick schott · Accepted Answer · 2011-10-18 23:46:54Z

0

I usually move url construction in a code-behind function:

<asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl='<%# UrlHelper(myVariable ,DataBinder.Eval(Container.DataItem, "FileLeafRef"))%>'>

protected string UrlHelper(string prefix, object leaf)
{
   return prefix + "/" + leaf.ToString();

}

answered Oct 18, 2011 at 23:46

rick schott

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