trying to add loading panel to my grid

[Doug]

my code below.
no loading is shown - I have min time = 14 seconds
no alert is ever called
my grid I create and bind with code behind.

why is the loading panel not showing? what am I missing
is there a way for me to explicit call the show loading?

function requestStart(sender, eventArgs) {

    alert('Request start initiated by: ' + eventArgs.get_eventTarget());

}

<telerik:RadAjaxLoadingPanel runat="server" ID="LoadingPanel1" MinDisplayTime="14000"  Skin="Default" Modal="true">
<asp:Label ID="Label2" runat="server" ForeColor="Red">Loading... </asp:Label>
<asp:Image ID="Image1" runat="server" Width="224px" Height="48px" ImageUrl="/colors.png"></asp:Image>
</telerik:RadAjaxLoadingPanel>
<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
<ClientEvents OnRequestStart="requestStart" />
    <AjaxSettings>
        <telerik:AjaxSetting AjaxControlID="gv">
            <UpdatedControls>
                <telerik:AjaxUpdatedControl ControlID="gv" LoadingPanelID="LoadingPanel1" />
            </UpdatedControls>
        </telerik:AjaxSetting>
    </AjaxSettings>
</telerik:RadAjaxManager>
<telerik:RadGrid RenderMode="Lightweight" ID="gv" runat="server" AutoGenerateColumns="false" CellSpacing="1" EnableViewState="true" />

[Viktor Tachev]

Hello Doug,

Based on the provided information it would be hard to pinpoint what is causing the behavior. The loading image should be displayed when the grid triggers a postback (e.g. on paging, sorting, etc.).

Nevertheless, would you remove the custom text and image from the loading panel and see if the behavior changes. Also, remove the Modal property.

<telerik:RadAjaxLoadingPanel runat="server" ID="LoadingPanel1" Skin="Default" >
</telerik:RadAjaxLoadingPanel>

Regards,
Viktor Tachev
Telerik by Progress

[Doug]

first issue solved by changing the controlid to my button that gets my form
<telerik:AjaxSetting AjaxControlID="btnGetForm">

next issue was "The Controls collection cannot be modified because the control contains code blocks"
which I just had to put my <%=... into RadScriptBlocks

next issue was my grid was visible=false so I targeted my loading panel control to an outer asp:panel
now it worked ok but tended to add javascript time onto the page which in my specific case was already too much. I then had an issue that my grid is linking to a list and repeater that are shown separately and when I went into that area nothing showed.

like I said before my code is very complex. but at least I solved the issue of it to show now. I can use it in other areas as-is.

for this page I think I will just look into a direct showing a modal loading overlay and hiding it when my script ends.

[Viktor Tachev]

Hello Doug,

I am glad that you have the issue resolved. Thank you for sharing the resolution with the community. This can help someone observing similar behavior.

Regards,
Viktor Tachev
Telerik by Progress