Collection property

[Marc L'Ecuyer]

I want to implement a collection property inside another (in a control
derived class) but I have some persistence problems.

There is an example of my ColumnItem class

<TypeConverter( GetType(ColumnI temConverter))> _

Public Class ColumnItem

Private m_strText As String

Private m_intWidth As Integer

Private m_imgImage As Image

Private m_colValueItems As ValueItemsColle ction

Public Sub New()

'...

End Sub

Public Property Text() As String

Get

Return m_strText

End Get

Set(ByVal Value As String)

m_strText = Value

End Set

End Property

Public Property Width() As Integer

Get

Return m_intWidth

End Get

Set(ByVal Value As Integer)

m_intWidth = Value

End Set

End Property

<Editor(GetType (CollectionEdit or), GetType(UITypeE ditor)), _

DesignerSeriali zationVisibilit y(DesignerSeria lizationVisibil ity.Content)> _

Public ReadOnly Property ValueItems() As ValueItemsColle ction

Get

Return m_colValueItems

End Get

End Property

'... other properties

End Class


I have a CollectionBase derived class object that contains all my
columnitems.
ValueItemsColle ction is another CollectionBase derived class for my
sub-collection.
When I enter new columns in design time, nothing is serialized in the
InitializeCompo nent of the form.

Does anybody could send me some tips about how to do that?

Thanks

[Shawn Burke [MS]]

Re: Collection property

You probably need to add InstanceDescrip tors for your collection contents.
Read this and it should get you pointed in the right direction:

http://www.msdn.microsoft.com/library/default.asp?url=/library/en-us/dndotne

t/html/custcodegen.asp ?frame=true



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"Marc L'Ecuyer" <mlecuyer@chca. ca> wrote in message
news:ObbORDOPDH A.1584@TK2MSFTN GP11.phx.gbl...[color=blue]
> I want to implement a collection property inside another (in a control
> derived class) but I have some persistence problems.
>
> There is an example of my ColumnItem class
>
> <TypeConverter( GetType(ColumnI temConverter))> _
>
> Public Class ColumnItem
>
> Private m_strText As String
>
> Private m_intWidth As Integer
>
> Private m_imgImage As Image
>
> Private m_colValueItems As ValueItemsColle ction
>
> Public Sub New()
>
> '...
>
> End Sub
>
> Public Property Text() As String
>
> Get
>
> Return m_strText
>
> End Get
>
> Set(ByVal Value As String)
>
> m_strText = Value
>
> End Set
>
> End Property
>
> Public Property Width() As Integer
>
> Get
>
> Return m_intWidth
>
> End Get
>
> Set(ByVal Value As Integer)
>
> m_intWidth = Value
>
> End Set
>
> End Property
>
> <Editor(GetType (CollectionEdit or), GetType(UITypeE ditor)), _
>
> DesignerSeriali zationVisibilit y(DesignerSeria lizationVisibil ity.Content)>[/color]
_[color=blue]
>
> Public ReadOnly Property ValueItems() As ValueItemsColle ction
>
> Get
>
> Return m_colValueItems
>
> End Get
>
> End Property
>
> '... other properties
>
> End Class
>
>
> I have a CollectionBase derived class object that contains all my
> columnitems.
> ValueItemsColle ction is another CollectionBase derived class for my
> sub-collection.
> When I enter new columns in design time, nothing is serialized in the
> InitializeCompo nent of the form.
>
> Does anybody could send me some tips about how to do that?
>
> Thanks
>
>[/color]