RadToolTip Issue

[Atchut]

Hello,
I have a textbox which is in invisible mode. I am making it visible on code behind.

RadTooltip is not working for that textbox. Is it because of the textbox is invisible initially ?

If so, how can I solve this ?

[Princy]

Hello Atchut,

I cannot reproduce the issue at my end. Here is the full code that I tried which worked as expected. Attached is the screenshot.
aspx:

<asp:Button ID="Button3" runat="server" Text="Button" onclick="Button3_Click" />
<asp:TextBox ID="TextBox1" runat="server"  Visible="false"></asp:TextBox>
<telerik:RadToolTip runat="server" ID="RadToolTip1" Text="show tooltip" TargetControlID="TextBox1" IsClientID="true" Position="BottomRight" RelativeTo="Element" HideEvent="ManualClose"></telerik:RadToolTip>

C#:

protected void Button3_Click(object sender, EventArgs e)
{
 TextBox1.Visible = true;
}

Thanks,
Princy.