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AJAX Navigation with Querystring Update

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Chase Florell
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Chase Florell asked on 13 Oct 2008, 09:21 PM
I am trying to make my site fully AJAXified while still updating the querystring for search engine optimization purposes.

Here is what I am trying

ASPX.VB
    Private Sub RenderMenu()  
 
        AddStyleSheet("~/RadControls_CustomSkin/Menu.RadControls_CustomSkin.css")  
 
        Dim PagesDC As New Dal.icms_PagesDataContext()  
        Dim results = PagesDC.icms_Pages_GetPageMenu()  
 
        RadMenu1.Skin = "RadControls_CustomSkin" 
        RadMenu1.DataTextField = "MenuName" 
        RadMenu1.DataFieldID = "ID" 
        RadMenu1.DataFieldParentID = "ParentID" 
        RadMenu1.EnableEmbeddedSkins = False 
        RadMenu1.OnClientItemClicked = "SetID()" 
 
        RadMenu1.DataSource = results  
        RadMenu1.DataBind()  
 
    End Sub 
 
    Protected Sub RadMenu1_ItemClick(ByVal sender As ObjectByVal e As Telerik.Web.UI.RadMenuEventArgs) Handles RadMenu1.ItemClick  
        Dim HiddenID As HiddenField = DirectCast(Me.FindControl("HiddenID"), HiddenField)  
    End Sub 'RenderMenu  
 
    Protected Sub RadMenu1_ItemDataBound(ByVal sender As ObjectByVal e As Telerik.Web.UI.RadMenuEventArgs) Handles RadMenu1.ItemDataBound  
        e.Item.NavigateUrl = "#ID=" & CType(DataBinder.Eval(e.Item.DataItem, "ID"), String)  
    End Sub 'RadMenu1_ItemDataBound 


ASPX
    <script type="text/javascript">  
        function SetID()  
        {  
            document.getElementById('<%= HiddenID.ClientID %>').value = window.location.hash;  
        }  
    </script> 
 
 
 
    <asp:HiddenField ID="HiddenID" runat="server" /> 

The plan is to update the HiddenID via javascript and using RadAJAX in the RadMenu1_ItemClick event to poll the database and update an asp: Panel with the new DB information.

anyone have any thoughts?

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Chase Florell
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answered on 13 Oct 2008, 09:24 PM
ALSO: I am basically trying to follow the instructions found Here

and here is my Error:

Line: 7
Char: 29366
Error: Object doesn't support this property or method
Code: 0
URL:***
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Chase Florell
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answered on 14 Oct 2008, 01:34 AM
another example would be to have both items in the menu <a> link so that the JavaScript enabled browsers get AJAX and non javascript browsers dont get AJAX.

Example:
<href="http://www.example.com/viewcontent.asp?id=401" onClick="return ajax_call(401)">Link</a> 

anyone know how I might implement this alternative using RadAjax and RadMenu?
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Atanas Korchev
Telerik team
answered on 14 Oct 2008, 07:31 AM
Hello Chase Florell,

You need to set the OnClientItemClicked event like this:

RadMenu1.OnClientItemClicked = "SetID"

Have in mind that RadMenu would navigate when you set the NavigateUrl property of the item. Navigation cannot be ajaxfied - only postbacks can.

Regards,
Albert
the Telerik team

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Chase Florell
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Answers by
Chase Florell
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Atanas Korchev
Telerik team
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