Who Ate My Mouse Down Event??

re: Who Ate My Mouse Down Event??

Kieren5 — Wed, 23 Jul 2008 14:19:21 GMT

*Shakes head*

Short answer - to make it more like Wpf... well, we need a preview event to so we can get a lookin!

Without looking at reflecter, I can't tell when a nested control is going to handle an event that my container control should!

Please see this post:

"How to know whether an element handles a Routed Mouse EVent":

silverlight.net/.../21154.aspx

re: Who Ate My Mouse Down Event??

yaip — Thu, 19 Jun 2008 00:22:12 GMT

So should I define MouseLeftButtonDown in ItemsControl or HyperLinkButton? Here is my xaml:

<ItemsControl.ItemTemplate>

</DataTemplate>

</ItemsControl.ItemTemplate>

</ItemsControl>

and my code-behind:

Private Sub itmStudents_MouseLeftButtonDown(ByVal sender As Object, ByVal e As System.Windows.Input.MouseButtonEventArgs) Handles itmStudents.MouseLeftButtonDown, itmStudents.MouseLeftButtonUp

btnSubmit.Opacity = 0

txtStudent.Opacity = 0

lblStudent.Opacity = 0

Me.itmStudents.Opacity = 0

txtMessage.Text = "Please wait..."

Dim textB As TextBlock = e.Source

Dim linkB As HyperlinkButton = textB.DataContext

Dim s As String = linkB.Tag

Dim asmx2 As New ServiceReference2.GetStudentArt_WSSoapClient

AddHandler asmx2.GetStudentArtCompleted, AddressOf asmx2_GetStudentArtWithAsmxCompleted

asmx2.GetStudentArtAsync(Convert.ToInt32(linkB.Tag))

End Sub

This was working fine in Beta 1.

re: Who Ate My Mouse Down Event??

jesseliberty — Wed, 18 Jun 2008 22:50:40 GMT

>>I have a HyperLinkButton in ItemsControl. Can't trap the click event.<<

Every control must have its own event handler; controls do not bubble their events.

re: Who Ate My Mouse Down Event??

Feal Xu — Mon, 16 Jun 2008 06:04:48 GMT

Hi Liberty,

Many thanks in advance that I have learned so much knowledge about Silverlight 2 from your blog in the past days.

This is just a suggestion for this article that maybe you should assign this important notification in your updated tutorial 1 PDF. For me,it is really lucky to see this good article because I have read almost all your articles about silverlight 2, but for others, they might be very confused when they encountered this issue, especially for a beginner.

Go ahead your fantastic work! Wish you every success!

Feal

Breaking Changes for Silverlight 2 Beta 2 (corrections and additions)

Silverlight SDK — Thu, 12 Jun 2008 21:33:52 GMT

With Silverlight 2 Beta 2 coming out there were a number of changes that will break applications written