[vmagdum]

I have Overloaded the Dispose method of System.Windows.Forms.Form Class in which I have written some extra code which I need to execute when object of Form Disposes. But when I create the object of Form in 'Using' statement, the 'End Using, statement do not execute my overloaded Dispose method. What should I do?

[trevster344]

If I'm not mistaken, using statement automatically disposes of any objects it has before the end, that is it calls the dispose method of that particular object, so you might try a with statement instead. That is the only reason I can see that you would have any issue getting around to your overloaded dispose. Why are you using the forms dispose method? Also might I see your code?

[vmagdum]

I am sending my code as an attachment. When I create a object of MyForm and call its Dispose method, the overloaded Dispose method gets called. But while using 'Using' statement to create the object of MyForm, the 'End Using' statement do not calls the overloaded Dispose method.

[nK0de]

I see no attachment. It's best if you post your code here.

[trevster344]

Read my post.

[_HAWK_]

What's wrong with the Form Closing event. You can dispose any object there. It might be a good idea to show us what your talking about - there might be a best practice thing we can advise on.

[vmagdum]

Sorry, I didn't attach the code last time. Please see the code I have attached and reply.

Attached File(s)

•  WindowsApplication1.zip (59.2K)
  Number of downloads: 11

[smohd]

Please post your code in code tags like:

We are not interested in downloading attachment for security reasons.....

[vmagdum]

Below is my code:-

Public Class MyForm
    Inherits Form

    Public Overloads Sub Dispose()
        MyBase.Dispose()

        MsgBox("Disposed")
    End Sub
End Class



Dim form1 As New MyForm

form1.Dispose() 'This calls the overloaded Dispose Method and MsgBox get displayed.

Using myForm As New MyForm
      myForm.Text = "CHILD_FORM"
      myForm.ShowDialog()
End Using 'But this statement do not calls the overloaded Dispose Method and MsgBox do not get displayed.

[trevster344]

I'm not sure using statements call overloaded methods.

[demausdauth]

Using statements do not call overloaded Dispose methods.

[trevster344]

Exactly why I was saying don't use a using method, especially if you're trying to call the dispose method, just call it. The using statement is for a little help managing your memory.

[Psyguy]

Just for the sake of learning (since I am not much of an extension writer yet):

In order to be able to use the Using statement, would you be able to write some kind of code to alter IDisposable since that is what the Using statement refers to?

[trevster344]

You won't be able to use the using statement because you can't edit the disposable interface only inherit it, that being said you'll only be able to create your own class to inherit the interface and the dispose method and the using statement won't call that one. I could be wrong.