Chap 14&15

southside123 · March 12th, 2014, 06:36 PM

Hi Imar,
First of all thank you for this amazing book.

I'm working on my own project now and I'm trying to include the All.aspx page inside AllByGenre.aspx page.

AllByGenres.aspx shows all genres with DisplayMode="Text". Here I changed DisplayMode to "HyperLink" where on browser all reviews are shown as links:

Code:

<asp:Repeater ID="Repeater1" runat="server">
        <ItemTemplate>
            <h3><asp:Literal ID="Literal1" runat="server" Text='<%#   Eval("Name") %>'></asp:Literal></h3>
            <asp:BulletedList ID="ReviewList" runat="server" DataSource='<%# Eval("Reviews") %>' DataTextField="Title" DisplayMode="HyperLink"></asp:BulletedList>
        </ItemTemplate>
        
    </asp:Repeater>

Now when I click a review I want to go to the ViewDetails.aspx page and show me the details of that review (Title, Summary and Body):

Code:

<asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl='<%# "ViewDetails.aspx?ReviewId=" + Item.Id.ToString() %>' Text='<%# Item.Title%>'></asp:HyperLink>

I tried putting the HyperLink of the All.aspx inside AllByGenres.aspx but is showing something like this:

Code:

System.InvalidCastException: Unable to cast object of type '<>f__AnonymousType0`2[

In AllByGenres.aspx I created another repeater with that HyperLink inside, below the first repeater, but now is showing 'All Reviews' below the 'All Reviews Grouped by Genre'.

Thanks.

Imar · March 16th, 2014, 12:24 PM

Hi there,

When setting DisplayMode to HyperLink, you need to set the Value property to the URL you want to link to: http://msdn.microsoft.com/en-us/libr...vs.110%29.aspx

Furthermore, the inner control has a collection of anonymous objects assigned to it, so you need use Eval rather than the strongly bind Item property. E.g. something like this:

Value='<%# "ViewDetails.aspx?Id=" + Eval("Id")' ..../>

Hope this helps,

Imar

southside123 · March 26th, 2014, 02:40 PM

Thanks for help Imar!
The answer was on Reviews/All.aspx http://aspnet45.planetwrox.com/Reviews/All.aspx

I have another question: How can I display Images instead HyperLinks?
For example, display an clickable image for the review: Sonic Youth: Daydream Nation live in Roundhouse, London, instead asp:Hyperlink.

I tried like this:

Code:

<asp:HyperLink ID="HyperLink1" ImageUrl="~/Images/image_Sonic Youth.jpg" runat="server" Text='<%# Item.Title%>' NavigateUrl='<%# "ViewDetails.aspx?ReviewId=" + Item.Id.ToString() %>'></asp:HyperLink>

But now all reviews gets the same image. How can I give each review different image? How to know which image to use? It can be some connection between image name and review?

Thanks.