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• Stéphane

  Posted on Dec 3, 2010 (permalink)

  Hi !
  I'm new to ASP.NET and Telerik and I can't find examples on how to use the "OnDataBound" event on the code-behind of my page. So I'm lost.
  Could you help me please ? This is my problem :
  
  I have this code on my page (vb.net) :
  
  

  <asp:Panel ID="PnlCDC" CssClass="BlocOccasionsCDC" runat="server" style="margin-bottom:20px;">

    <telerik:radrotator runat="server" id="radrotator1" Width="830px" Height="100px"

       ItemWidth="120px" ItemHeight="100px"

       ScrollDuration="1200"

       FrameDuration="2600"

       ScrollDirection="Left" ViewStateMode="Enabled" OnDataBound="radrotator1_databound" AppendDataBoundItems="true"

       AppendDataBoundItems="True" Skin="Black">

    <ItemTemplate>

       <asp:Panel ID="PanelBlocCDC" runat="server" CssClass="BlocCDC">

           <asp:Panel ID="PanelBlocCDCImage" runat="server" CssClass="BlocCDCImage">

               <asp:HyperLink ID="HyperLinkCDC" runat="server" ToolTip="En savoir +" NavigateUrl="voiture-details.aspx?v=">

                   <asp:Image ID="ImageCDC" runat="server" Width="98px" Height="68px" BorderWidth="0" ImageUrl="~/voiture-photos/occasions/vide-small.png" />

               </asp:HyperLink>

           </asp:Panel>

           <asp:Panel ID="PanelBlocCDCTexte" runat="server" CssClass="BlocCDCTexte">

               <asp:Label ID="LabelBlocCDCTexte" runat="server" Text="" CssClass="TexteOccasionCDCsmall" />

           </asp:Panel> 

       </asp:Panel>   

    </ItemTemplate>

    </telerik:radrotator>  

   </asp:Panel>

  
  In my code behind I have this :
  

  Dim objOccasions As New Occasions
radrotator1.DataSource = objOccasions.DataSetResultat
radrotator1.DataBind()

  
  Occasions is an object I have created to manages an sql database of cars. DataSetResultat is a DataSet which contains the result of the sql request.
  What I would like to do, is something as the same as I can do with Gridview in VB.NET.
  I mean, I would like to manage the onrowdatabound event to be able to access the ASP.NET controls in my rotator for each item of the rotator and to add some personnal code to fill in their properties.
  
  To understand my problem, for example, with a classic gridview in vb.net, I can do this (I would like to do the same thing with the rotator but I'm not able to do it) :
  Code in my page :
  

  <asp:GridView ID="TarifsView"

             onrowdatabound = "TarifsView_RowDataBound"

             ....

  Code-behind of this page :
  

  Protected Sub TarifsView_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles TarifsView.RowDataBound

          If e.Row.RowType = DataControlRowType.DataRow Then

    

              Dim objProd As New Products

              Dim ProdDesignation As Label = CType(e.Row.FindControl("LabelGammeTitreProduit"), Label)

                  ....

          end if

  End Sub

  
  But I'm not able to do the same thing with te radrotator.
  Could you help me by showing me examples so I could understand how to manage the event OnDataBound of the radrotator ?
  Thnak you very much for this.
  
  
  

• Fiko Fiko

  Posted on Dec 9, 2010 (permalink)

  Hello Stéphane,
  
  With RadRotator control you can use a similar approach in order to get reference to a control declared in its ItemTemplate:
  

  Protected Sub RadRotator1_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadRotatorEventArgs) Handles RadRotator1.ItemDataBound

   

      Dim label1 As Label = CType(e.Item.FindControl("LabelGammeTitreProduit"), Label)

   

  End Sub

  
  
  This is the marlup of the rotator:
  

  <telerik:RadRotator ID="RadRotator1" runat="server" Width="100px" Height="100px"

      ItemHeight="100px" ItemWidth="100px" DataSourceID="xmlDataSource1">

      <ItemTemplate>

          <asp:Label ID="LabelGammeTitreProduit" runat="server" Text='<%# XPath("LabelText") %>'></asp:Label>

      </ItemTemplate>

  </telerik:RadRotator>

  <asp:XmlDataSource ID="xmlDataSource1" runat="server" DataFile="Thumbs.xml"></asp:XmlDataSource>

  
  
  Greetings,
  Fiko
  the Telerik team

  
  Check out Telerik Trainer, the state of the art learning tool for Telerik products.

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