[Solved] Sys.ArguementTypeException: Telerik.Web.UI.RadAjaxManager Cannot be converted to type ''. Parameter Name Instance.

[hkdave95]

Hi

I am using the following call to load a radwindow and it is failing with the above message ...

Call Telerik.Web.UI.RadScriptManager.RegisterClientScriptBlock(Me.Page, Me.Page.GetType, "LoginWindowScript", "window.radopen('Login.aspx', 'wLoginRegister');", True)

The rad window manager code is as:

                <telerik:RadWindowManager ID="rwmHeader" runat="server" InitialBehaviors="Maximize" EnableEmbeddedSkins="false">
                    <Windows>
                        <telerik:RadWindow ID="wLoginRegister" Height="400px" Width="400px" Animation="Fade" runat="server" Modal="true"></telerik:RadWindow>
                    </Windows>
                </telerik:RadWindowManager>

.... and the Ajax ...

<telerik:RadAjaxManagerProxy ID="rampHeader" runat="server">
    <AjaxSettings>
        <telerik:AjaxSetting AjaxControlID="rmMenu">
            <UpdatedControls>
                <telerik:AjaxUpdatedControl ControlID="rwmHeader" LoadingPanelID="ralpHeader" />
                <telerik:AjaxUpdatedControl ControlID="rmMenu" />
            </UpdatedControls>
        </telerik:AjaxSetting>
    </AjaxSettings>
</telerik:RadAjaxManagerProxy>

Kind Regards

David

[Vlad]

Hello David,

I believe that this issue is related to your other forum post for the grid. If the grid is in ajax mode please set EnableAJax to false to resolve this.

Regards,
Vlad
the Telerik team

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