[Solved] ToolTip diappear

[Wai]

Hello,

I try to set RadToolTipManageron the RadGrid.

<telerik:RadToolTipManager ID="RadToolTipManager1" runat="server" Width="300px" Height="180px" Title="Products" Animation="None" ShowEvent="OnClick" AutoTooltipify="false"
AutoCloseDelay="100000" ShowCallout="false" Text="Loading...">

In code behind, I have

Private Sub rgConfirmationReport_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles rgConfirmationReport.ItemDataBound
        If TypeOf e.Item Is GridDataItem Then

            Dim lbHistory As HyperLink = CType(e.Item.FindControl("hlHistory"), HyperLink)

            If Not [Object].Equals(lbHistory, Nothing) Then
                If Not [Object].Equals(Me.RadToolTipManager1, Nothing) Then
                    RadToolTipManager1.TargetControls.Add(lbHistory.ClientID, True)
                End If
            End If
        End If
    End Sub

Private Sub RadToolTipManager1_AjaxUpdate(ByVal sender As Object, ByVal e As Telerik.Web.UI.ToolTipUpdateEventArgs) Handles RadToolTipManager1.AjaxUpdate
     Dim lblTest As New Label()
     lblTest.Text = "Test"
     e.UpdatePanel.ContentTemplateContainer.Controls.Add(lblTest)
End Sub

After the tooltip is opened, it is closed immediately.  (I don't see "Test" text.)

Does anyone know if I miss anything?

Thanks,

Wai

[Obi-Wan Kenobi]

Probably RadTooltipManager and RadGrid are in Update panel.
If this is true, when you click over the "link" an AjaxCall, which updates the RadGrid and RadTooltip is happen too.
If you remove the UpdatePanel, everything should be ok.
 
My suggestion is to use Triggers or RadAjaxManager to update the grid as it shown here:
http://demos.telerik.com/ASPNET/Prometheus/Grid/Examples/Programming/WebMailGrid/DefaultCS.aspx

Hope this helps.

[Wai]

It helps.

Thanks a lot.