Class problem

[mm]

Hi all

I have this class
I copied this from this newsgroup and change this for my personal need
When I run my program I get this
First a candidate has been added via this

AddHandler cand.AnEvent, AddressOf Shp.shapeProcedure
Shp.AddShapes(cand1)
GraphicsCnt += 1
If Left(Ddata(t), 4) = "OPEN" Then
Shp.shapeCollection(GraphicsCnt).name
="OPEN"&GraphicsCnt

After this some x and y values has to be added via this
Shp.shapeCollection(ShapeIndex).x(0) = CDbl(p1(0))

And here the program said
Object variable or With block variable not set.
Use the key word new to create a object instance
What I am doing wrong


Public Class MyShapes
Public shapeCollection As New Collection
Public Sub AddShapes(ByVal aCandidate As MyShape)
shapeCollection.Add(aCandidate)
End Sub
Public Sub shapeProcedure(ByVal sender As Object, ByVal e As
EventArgs)
' code here
Console.WriteLine("Test")
End Sub
End Class
Public Class MyShape
Public Event AnEvent As EventHandler
Public Name As String
Public x As Double() ' Array with x positions
Public y As Double() ' Array with y positions
Public w As Double ' Width
Public points As Short ' # points
Public layer As Short ' Layer (1,20,21,23,27)
Public stype As Short ' Type (1,2,3,4,5,6)
Public Property Prop1(ByVal Index As Integer) As Double
Get
Return x(Index)
End Get
Set(ByVal value As Double)
If x Is Nothing Then
ReDim x(0)
Else
ReDim Preserve x(254 + 1)
End If
x(Index) = value
End Set
End Property
Public Property Prop2(ByVal Index As Integer) As Double
Get
Return y(Index)
End Get
Set(ByVal value As Double)
If y Is Nothing Then
ReDim y(0)
Else
ReDim Preserve y(254 + 1)
End If
y(Index) = value
End Set
End Property
Public Property Prop3() As Double
Get
Return w
End Get
Set(ByVal value As Double)
w = value
End Set
End Property
Public Property prop4() As Short
Get
Return points
End Get
Set(ByVal value As Short)
points = value
End Set
End Property
Public Property prop5() As Short
Get
Return layer
End Get
Set(ByVal value As Short)
layer = value
End Set
End Property
Public Property prop6() As String
Get
Return stype
End Get
Set(ByVal value As String)
stype = value
End Set
End Property
Public Property prop7() As String
Get
Return Name
End Get
Set(ByVal value As String)
Name = value
End Set
End Property
Protected Overridable Sub OnAnEvent(ByVal e As EventArgs)
RaiseEvent AnEvent(Me, e)
End Sub
End Class

 

[Chris Dunaway]

After this some x and y values has to be added via this
Shp.shapeCollection(ShapeIndex).x(0) = CDbl(p1(0))

And here the program said
Object variable or With block variable not set.
Use the key word new to create a object instance
What I am doing wrong

It looks like the Double array called 'x' is never getting initialized.
It seems like you have the code to initialize it in the Prop1
procedure but that is never getting called so the array does not get
initialized.