WPF Popups

[Sergey Zhilyakov]

Hi,

first, I would thank you for such a great project as ExcelDna. It works just perfect. The problem below probably relates to Excel rather then ExcelDna. Nevertheless, I have to ask.

I have the CTP with ElementHost hosting WPF user control. All works well except popups. Here are a few observations:

1. If the edges of the popup are inside CTP, all works well.
   
2. If a part of the popup is drawn outside CTP (this happens when the width of popup is greater than the width of CTP, see below) and I click 'outside' part of the popup, it disappears.
   
3. I tried all suggestions from here with no success.
   
4. The problem appears only in Excel 2007/2010. In Excel 2013 all works well.
5. The problem does not appear if the popup is in the modeless dialog box.

I noticed that if I push left mouse button within 'outside' area and do not release it, CTP looses focus first.

Do you have an idea what may go wrong here?

Thanks in advance,

Sergey

[Jiri Pik]

I suggest you to take care of the closing of the PopUp manually.

 

<Popup Name="ZZZToolTip" StaysOpen="True" AllowsTransparency="True" MaxWidth="600" Placement="MousePoint" PopupAnimation="Fade" >

 

And then to listen on mouse enter to all other components and hide the popup there.

 

<telerik:GridViewDataColumn Header="XXX" DataMemberBinding="{Binding XXX}">

                                    <telerik:GridViewColumn.CellTemplate>

                                        <DataTemplate>

                                            <TextBlock Text="{Binding XXX }">

                                                <TextBlock.Style>

                                                    <Style TargetType="{x:Type TextBlock}">

                                                        <EventSetter Event="Mouse.MouseEnter" Handler="ZZZide_PopupToolTip" />

                                                        <EventSetter Event="Mouse.MouseLeave" Handler="ZZZHide_PopupToolTip"/>

                                                    </Style>

                                                </TextBlock.Style>

                                            </TextBlock>

                                        </DataTemplate>

                                    </telerik:GridViewColumn.CellTemplate>

                                </telerik:GridViewDataColumn>

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[Sergey Zhilyakov]

Thanks for the reply.

Unfortunately, this does not work. The MouseLeave event does not raise sometimes when leaving the popup. I also tried approaches described here http://stackoverflow.com/questions/619798/why-does-a-wpf-popup-close-when-its-background-area-is-clicked with no luck.

Interestingly, popups behaves as expected in Excel 2013. I'm still thinking that the problem relates to Excel 2007/2010 and I'm still unable to work around this.

Best regards,

Sergey

[Jiri Pik]

You should NOT listen to MouseLeave of the PopUp itself but of all other components around, in addition to the MouseEnter of those components.

 

If all fails, you can put to pop up a close button and forget about MouseLeave and MouseEnters!

[Sergey Zhilyakov]

but of all other components around, in addition to the MouseEnter of those components.

The close button does work, but the basic idea is to keep the StaysOpen property set to false, so popups  are closed automatically when clicking outside.

Note that I mean interactive popups but not tooltips.

С уважением,

Сергей

[Govert van Drimmelen]

There were issues using WPF in Office apps in the past.

One example that's not too far from what you're discussing here is this: https://connect.microsoft.com/VisualStudio/feedback/details/769994/mouse-capture-problem-with-wpf-usercontrol-in-office-addin-taskpane-window

To really work around this might need to figure out how the windows messages are being routed.

-Govert

С уважением,

Сергей

Sergey

 

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[Jiri Pik]

Sure thing

 

I got the same problem as you have but with Excel 2013. For me the StaysOpen = false didn’t work as I was refreshing the underlying RadGridView on another thread. The solution was to use MouseEnter on all components around the PopUp – in this case, on every single column different from the popup one, and on the TabControl leave and it works wonderfully

 

 

[Sergey Zhilyakov]

By the way, what does your software do? :) Does it obtain financial statistics from the Internet?

С уважением,

Сергей

[Jiri Pik]

http://SpearianForExcel.com you can check there there the PopUps – get the trial -> Search on Ribbon -> Quandl.

 

I got wonderful support from a number of companies. I will give it back by preparing a number of blog articles which might help the readers of this group.