RadToolTipManager doesn't work

[reza]

Hi

Please consider this simple page , Why RadToolTipManager doesn't change the ToolTip

    <form id="form1" runat="server">
    <div>
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
                <telerik:RadToolTipManager ID="RadToolTipManager1" runat="server" Skin="Hay" Animation="FlyIn">
        </telerik:RadToolTipManager>
        <asp:CheckBox ID="CheckBox1" runat="server" ToolTip="test tooltip" />
    </div>
    </form>

Thanks

[Marin Bratanov]

Hi Reza,

You simply have not set the ToolTipManager to tooltipify this checkbox. In a very simple scenario you can use its AutoTooltipify proeprty and set it to true.

The better approach is to add the checkbox to tooltipify the element dynamically:

1. add the checkbox to the target controls collection:

protected void Page_Load(object sender, EventArgs e)
    {
        RadToolTipManager1.TargetControls.Add(CheckBox1.ClientID, true);
    }

2. attach to the OnAjaxUpdate event of the ToolTipManager:

<telerik:RadToolTipManager ID="RadToolTipManager1" runat="server" Animation="FlyIn" OnAjaxUpdate="OnAjaxUpdate">

3. define the custom content:

protected void OnAjaxUpdate(object sender, ToolTipUpdateEventArgs e)
    {
        e.UpdatePanel.ContentTemplateContainer.Controls.Add(new LiteralControl("My dynamic tooltip"));
    }

4. remove the ToolTip property of the checkbox, as it will duplicate the new tooltip and is not necessary

Kind regards,
Marin
the Telerik team

[reza]

Yes 
Thank you