Render issue when refreshing page in Firefox 25.01

[King Du]

I have not tried this outside of our application, that is going to be my next step. I just wanted to ask the question to see if anyone had any ideas to look at before I dug any further into the issue. What I am seeing started with the latest version of Firefox (25.0.1). Basically what is happening is we have a combobox dynamically rendered on the page from the server side inside of a asp.net update panel and it renders fine until the user refreshes the page. I have attached two screenshots, one before the refresh to show the combobox rendering properly and a second screenshot to show what the combobox looks like after a refresh. The combobox functions properly it is just missing it's styles.

[Shinu]

Hi,

Unfortunately I couldn't replicate the issue at my end. Please have a look into the following code snippet which works fine at my end.

ASPX:

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
</asp:UpdatePanel>
<telerik:RadButton ID="RadButton1" runat="server" Text="Postback">
</telerik:RadButton>

C#:

protected void Page_Load(object sender, EventArgs e)
{
    RadComboBox combo = new RadComboBox();
    combo.Items.Add(new RadComboBoxItem("Black"));
    combo.Items.Add(new RadComboBoxItem("White"));
    UpdatePanel1.ContentTemplateContainer.Controls.Add(combo);
}

Please provide your code if it doesn't help.
Thanks,
Shinu.