Where should I place the RadAjaxManager ?

[STEVEN]

Hi,

I got this error because I have RadAjaxManager in both the Site.Master and the Default.aspx page.
[InvalidOperationException: Only one instance of a RadAjaxManager can be added to the page!]

My question is where is the best place to place the RadAjaxManager if I need to ajaxify controls in both Site.Master and Default.aspx?


The 2nd question is how do I display a spinning flower/circle/icon when the control is loading?

[Genti]

Hi Steven,

Thank you for contacting us.

A suggested practice is to put the RadAjaxManager on the MasterPage and have a RadAjaxManagerProxy on the child pages that inherit from the MasterPage.

In order to display a loading panel over some panel when you click a button you can make the following declaration on the child pages.

<telerik:RadAjaxManagerProxy ID="RadAjaxManagerProxy1" runat="server">
    <AjaxSettings>
        <telerik:AjaxSetting AjaxControlID="Button1">
            <UpdatedControls>
                <telerik:AjaxUpdatedControl ControlID="Panel1"
                    LoadingPanelID="RadAjaxLoadingPanel1" />
            </UpdatedControls>
        </telerik:AjaxSetting>
    </AjaxSettings>
</telerik:RadAjaxManagerProxy>
<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" Skin="Default">
</telerik:RadAjaxLoadingPanel>
<asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
<asp:Panel ID="Panel1" runat="server" Width="150px" Height="100px">
    <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
</asp:Panel>

And in the button click event you can have:

protected void Button1_Click(object sender, EventArgs e)
    {
        Label1.Text = DateTime.Now.ToString();
    }

Hope this helps.

Kind regards,
Genti
the Telerik team

[STEVEN]

Thanks my doubts are cleared