MyBase.New Question on Inherited UserControls

[BluDog]

Hi

I have a UserControl called MyUserControl that has the following
constructor and InitializeCompo nent (automatically generated by VS):

Public Sub New()
MyBase.New()

'This call is required by the Windows Form Designer.
InitializeCompo nent()

'Add any initialization after the InitializeCompo nent() call

End Sub

Private Sub InitializeCompo nent()
components = New System.Componen tModel.Containe r()
End Sub

I then inherit from the control with MyInheritedUser Control and add a
text box to the control, again the constructor and InitializeCompo nent
is automatically generated by the VS:

Public Sub New()
MyBase.New()

'This call is required by the Windows Form Designer.
InitializeCompo nent()

'Add any initialization after the InitializeCompo nent() call

End Sub

Private Sub InitializeCompo nent()
Me.TextBox1 = New System.Windows. Forms.TextBox
Me.SuspendLayou t()
'
'TextBox1
'
Me.TextBox1.Loc ation = New System.Drawing. Point(16, 32)
Me.TextBox1.Nam e = "TextBox1"
Me.TextBox1.Tab Index = 0
Me.TextBox1.Tex t = "TextBox1"
'
'MyInheritedCon trol
'
Me.Controls.Add (Me.TextBox1)
Me.Name = "MyInheritedCon trol"
Me.ResumeLayout (False)

End Sub

My company is implementing FxCop
(http://www.gotdotnet.com/team/fxcop/), a fantastic utility, but it
flags the following warning on the constructor in
MyInheritedUser Control:

"'MyInheritedCo ntrol..ctor()' contains a call chain that results in a
call to a virtual method defined by the class. Review the following
call stack for unintended consequences:
MyInheritedCont rol..ctor()MyIn heritedControl.
InitializeCompo nent()MyInherit edControl.set_T extBox1(
TextBox WithEventsValue )"

"Virtual methods defined on the class should not be called from
constructors. If a derived class has overridden the method, the
derived class version will be called (before the derived class
constructor is called)."

With a link to more information:

http://www.gotdotnet.com/team/fxcop/...orVirtual.html

Can someone explain what is actually wrong here please?

Thanks

Blu.

[Herfried K. Wagner [MVP]]

* BluDog <ne**@nospam.bl udog.net> scripsit:

With a link to more information:

http://www.gotdotnet.com/team/fxcop/...orVirtual.html

Can someone explain what is actually wrong here please?

I found the description + sample really self-explaining. So I suggest
to take a closer look at it and play around with the sample provided in
the document referenced above.

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>

[BluDog]

On 18 Aug 2004 12:40:55 +0200, hi************* **@gmx.at (Herfried K.
Wagner [MVP]) wrote:

* BluDog <ne**@nospam.bl udog.net> scripsit:

With a link to more information:

http://www.gotdotnet.com/team/fxcop/...orVirtual.html

Can someone explain what is actually wrong here please?

I found the description + sample really self-explaining. So I suggest
to take a closer look at it and play around with the sample provided in
the document referenced above.

I agree that it makes sense, but why does the code that VS adds
automatically break their own rules?