At first : I develop a Windows.Forms-Application (.Net 4.0)
My Problem is a bit difficil to explain :
I have a custom Control which creates dynamicly Sub-Controls (like Labels) in it. From each Label I take some Event-Handlers as for example MouseEnter or MouseLeave to a common Sub which delivers this Event for the complete Control and gives as Sender the responsible sub-Control.
This part is working fine ...
Now I put this Control in a customized collection which also has to catch this Event and deliver it to outside the collection.
This part is working if I use Labels or Buttons as Elements of this collection - but it isn't working with the described "Custom"-Control.
If nescessary I would post a part of my Code - but I Think, that the nature of the "Problem" is something basicly.
Edited :
Code-Snippets from the described "Problem" :
This part collects the Event-Handler inside the Custom Control :
Private KalenderElemente As New Collection
Private Sub CreateElements()
KalenderElemente.Clear()
For i As Integer = 1 To 42
Dim myKalenderTag As New PP_Monatskalender_Tag
myKalenderTag.Name = "Tag_" + i.ToString("00")
myKalenderTag.ForeColor = my_ForeColor_Days
myKalenderTag.BackColor = my_BackColor_Days
myKalenderTag.Parent = Me
AddHandler myKalenderTag.Click, AddressOf KalenderTag_Click
AddHandler myKalenderTag.MouseMove, AddressOf KalenderTag_MouseMove
AddHandler myKalenderTag.MouseEnter, AddressOf KalenderTag_MouseEnter
AddHandler myKalenderTag.MouseLeave, AddressOf KalenderTag_MouseLeave
KalenderElemente.Add(myKalenderTag)
Next
End Sub
Private Sub Kalender_MouseMove(ByVal sender As Object, ByVal e As MouseEventArgs) Handles MyBase.MouseMove
If Not KalenderElemente.Item(0).Visible Then
KalenderElemente.Item(0).DatumsTag = 0
RaiseEvent MouseMove(KalenderElemente.Item(0), e)
Else
KalenderElemente.Item(41).DatumsTag = 0
RaiseEvent MouseMove(KalenderElemente.Item(41), e)
End If
End Sub
Private Sub KalenderTag_MouseMove(ByVal sender As Object, ByVal e As MouseEventArgs)
RaiseEvent MouseMove(sender, e)
End Sub
Shadows Event MouseMove(ByVal sender As Object, ByVal e As MouseEventArgs)
Private Sub KalenderTag_MouseEnter(ByVal sender As Object, ByVal e As EventArgs)
RaiseEvent MouseEnter(sender, e)
End Sub
Shadows Event MouseEnter(ByVal sender As Object, ByVal e As EventArgs)
Private Sub KalenderTag_MouseLeave(ByVal sender As Object, ByVal e As EventArgs)
RaiseEvent MouseLeave(sender, e)
End Sub
Shadows Event MouseLeave(ByVal sender As Object, ByVal e As EventArgs)
Now each of the internal Controls deliver it's Mouse-Event to outside.
If I put it on a Form and write a script which takes the Event I could see that all works fine (and as expected).
In the following you see the part of the collection which should manage this Control (and others) :
Public Class MessageDefinition
Public WithEvents Control As Control
Public HeaderText As String
Public MessageText As String
Public DisplayShadow As Boolean
Public ToolTipLocation As ToolTipLocationDefintion
Public Location As Point
End Class
Public Class Message_Collection
Inherits CollectionBase
Public Shadows Sub Clear()
Dim myItem As MessageDefinition
For i As Integer = 1 To List.Count
myItem = List.Item(i - 1)
RemoveHandler myItem.Control.MouseEnter, AddressOf Item_MouseEnter
RemoveHandler myItem.Control.MouseMove, AddressOf Item_MouseMove
RemoveHandler myItem.Control.MouseLeave, AddressOf Item_MouseLeave
Next
List.Clear()
End Sub
Overrides Function ToString() As String
Return "[...]"
End Function
Public Sub Dispose()
Clear()
End Sub
Public Sub SetMessage(item As MessageDefinition)
Dim myItem As MessageDefinition
For i As Integer = 1 To List.Count
myItem = List.Item(i - 1)
If myItem.Control.GetType Is item.Control.GetType _
AndAlso myItem.Control.Name = item.Control.Name Then
Exit Sub
End If
Next
AddHandler item.Control.MouseEnter, AddressOf Item_MouseEnter
AddHandler item.Control.MouseMove, AddressOf Item_MouseMove
AddHandler item.Control.MouseLeave, AddressOf Item_MouseLeave
List.Add(item)
RaiseEvent MouseEnter(item, System.EventArgs.Empty)
End Sub
Private Sub Item_MouseEnter(sender As Object, e As System.EventArgs)
Dim myItem As MessageDefinition
Dim mySender As Control = sender
For i As Integer = 1 To List.Count
myItem = List.Item(i - 1)
If myItem.Control Is mySender Then
RaiseEvent MouseEnter(myItem, e)
Exit Sub
End If
Next
End Sub
Private Sub Item_MouseMove(sender As Object, e As System.EventArgs)
Dim myItem As MessageDefinition
Dim mySender As Control = sender
For i As Integer = 1 To List.Count
myItem = List.Item(i - 1)
If myItem.Control Is mySender Then
RaiseEvent MouseMove(myItem, e)
Exit Sub
End If
Next
End Sub
Private Sub Item_MouseLeave(sender As Object, e As System.EventArgs)
Dim myItem As MessageDefinition
Dim mySender As Control = sender
For i As Integer = 1 To List.Count
myItem = List.Item(i - 1)
If myItem.Control Is mySender Then
RaiseEvent MouseLeave(myItem, e)
Exit Sub
End If
Next
End Sub
Public Event MouseEnter(sender As Object, e As System.EventArgs)
Public Event MouseMove(sender As Object, e As System.EventArgs)
Public Event MouseLeave(sender As Object, e As System.EventArgs)
End Class
As describe (on Top) the catched Events are fired with "Standard"-Controls but not with the "Customized" Control.