Can't set a View as an updated control for ajax manager

[andieje]

Hi

I am trying to set a view from a multiview as an updated control in rad ajax manager.

This is the aspx

 

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">

 

 

<AjaxSettings>

 

 

 

<telerik:AjaxSetting AjaxControlID="btnSubmit">

 

 

<UpdatedControls>

 

 

 

<telerik:AjaxUpdatedControl ControlID="vwSuccess" />

 

 

</UpdatedControls>

 

 

</telerik:AjaxSetting>

 

 

</AjaxSettings>

 

 

</telerik:RadAjaxManager>

When the page runs i get this error

 

Controls added to a ViewCollection must be of type View.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentException: Controls added to a ViewCollection must be of type View.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[ArgumentException: Controls added to a ViewCollection must be of type View.] System.Web.UI.WebControls.ViewCollection.AddAt(Int32 index, Control v) +92 Telerik.Web.UI.RadAjaxControl.MoveUpdatePanel(Control initiator, Control updated) +123 Telerik.Web.UI.RadAjaxControl.PerformRender() +420 Telerik.Web.UI.RadAjaxControl.OnPageRender(HtmlTextWriter writer, Control page) +1223 Telerik.Web.UI.RadAjaxControl.RenderPageInAjaxMode(HtmlTextWriter writer, Control page) +87 System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +98 System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +21 System.Web.UI.Page.Render(HtmlTextWriter writer) +27 System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +53 System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +310 System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +24 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +7375

many thanks

[Sebastian]

Hello andieje,

RadAjax can updated only entire controls, not merely parts of a server control (view of asp MultiView in your case), otherwise the viewstate of these controls cannot be kept consistent. Hence you will need to wrap the MultiView inside asp Panel (since the MultiView does not render html itself) and set the id of the panel as an updated control.
 
Also verify that your multiview control has the following structure:

        <asp:MultiView ID="MultiView1" runat="server">
            <asp:View runat="server">
            </asp:View>
            .........................
        </asp:MultiView>

Regards,
Sebastian
the Telerik team

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[andieje]

Hi

I was able to get it to work my setting the ID of the multiview in the rad ajax manager and not the id of the view. But you said that wouldn't work because the multiview doesn't render html Is that right?

[Sebastian]

Hello andieje,

Indeed that was my conclusion. Nevertheless, it seems that in your case the ajax manager succeeded in identifying the multiview instance on the page - feel free to use your approach is applicable.

Kind regards,
Sebastian
the Telerik team

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Check out the tips for optimizing your support resource searches.