Basic Problem

[Mark]

Hi,

I'm new to this control and seem to be having some trouble getting it to work correctly. I've got an XML file as the data source, however the control only ever shows the first item in the list.

My code is as follows:

        <telerik:RadRotator ID="RadRotator1" runat="server" DataSourceID="xmlData" RotatorType="AutomaticAdvance" ScrollDuration="2000" ScrollDirection="Up" FrameDuration="1" Height="200" ItemHeight="100" Width="200" ItemWidth="100">
            <ItemTemplate>
                <%#System.Web.HttpUtility.HtmlEncode(XPath("Message").ToString())%>
            </ItemTemplate>
        </telerik:RadRotator>
        <asp:XmlDataSource ID="xmlData" DataFile="Messages.xml" XPath="Messages" runat="server"></asp:XmlDataSource>

XML Source:

<?xml version="1.0" encoding="utf-8" ?>
<Messages>
  <Message>Frasers Message</Message>
  <Message>Marks message</Message>
  <Message>Jimmys message</Message>
</Messages>

It's probably something obvious - can anyone help me out please?

[Georgi Tunev]

Hi Mark,

The problem here is in the way XPath works. More information on the subject is available in this tutorial:
http://www.w3schools.com/XPath/default.asp

For your code to work, you should modify it like this:

<?xml version="1.0" encoding="utf-8" ?>
<Messages>
  <Message>
    <text>Frasers Message</text>
  </Message>
  <Message>
    <text>Marks message</text>
  </Message>
  <Message>
    <text>Jimmys message</text>
  </Message>
</Messages>

<telerik:RadRotator
    ID="RadRotator1"
    runat="server"
    DataSourceID="xmlData"
    RotatorType="AutomaticAdvance"
    ScrollDuration="2000"
    ScrollDirection="Up"
    FrameDuration="1"
    Height="200"
    ItemHeight="100"
    Width="200"
    ItemWidth="100">
    <ItemTemplate>
        <%#System.Web.HttpUtility.HtmlEncode(XPath("text").ToString())%>
    </ItemTemplate>
</telerik:RadRotator>
<asp:XmlDataSource
    ID="xmlData"
    DataFile="banner1.xml"
    runat="server">
</asp:XmlDataSource>

I hope this helps.

Kind regards,
Georgi Tunev
the Telerik team

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[Mark]

Hi,

Thanks for the reply - but sorry, that didn't work. Well, it didn't work the way I was hoping anyway!

I'm trying to get the XML content to rotate vertically, but that just placed all 3 items on the screen with the top 2 sitting beside each other and the third underneath.

[Mark]

Ah, no sorry - got it!
I changed the width to 100 instead of 200, and it's working great now.

Thanks for the help!

[Mark]

I suspect the answer to this is no, but I thought I'd ask anyway!

I'm building a system that is going to constantly display messages that are in the XML file. However, the XML file will be constantly updated with new messages.
Is there any way to get the control to take the new messages into account withouth having to reload?

[Lini]

Hello,

The rotator databinding happens on the server, which means that you will need to refresh it in order use the updated XML file. You can put the control in an ajax panel and use a timer control to perform the update - for example http://demos.telerik.com/aspnet-ajax/ajax/examples/common/ajaxifytimer/defaultcs.aspx

Best wishes,
Lini
the Telerik team

Instantly find answers to your questions on the new Telerik Support Portal.
Watch a video on how to optimize your support resource searches and check out more tips on the blogs.