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Oct 1st, 2006

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How to unload all open forms

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Hi All,
I need some guidance here...How does one close or unload all open forms in VB.Net. Can someone please help me out in this regard?
Thanks very much.

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hari12341

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Oct 1st, 2006

Re: How to unload all open forms

Application.Exit()

Inanna

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Oct 2nd, 2006

Re: How to unload all open forms

i may try that out but this is the warning issued in msdn under application.exit() method

CAUTION The Form.Closed and Form.Closing events are not raised when the Application.Exit method is called to exit your application. If you have validation code in either of these events that must be executed, you should call the Form.Close method for each open form individually before calling the Exit method.

hari12341

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Oct 2nd, 2006

Re: How to unload all open forms

I used a for in vb to close all open forms but i am new to .Net and have not been able to do the same in .Net
Code in VB:

VB.NET Syntax (Toggle Plain Text)

 for each frm in forms

VB.NET Syntax (Toggle Plain Text)
 frm.close()
 frm.close()

VB.NET Syntax (Toggle Plain Text)

 next

In .Net this does not work i guess...

hari12341

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Oct 2nd, 2006

Re: How to unload all open forms

hmn:

VB.NET Syntax (Toggle Plain Text)
for each XFrm in forms
     unload XFrm
next XFrm
for each XFrm in forms
     unload XFrm
next XFrm

Comatose

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Oct 3rd, 2006

Re: How to unload all open forms

Quote ...

CAUTION The Form.Closed and Form.Closing events are not raised when the Application.Exit method is called to exit your application. If you have validation code in either of these events that must be executed, you should call the Form.Close method for each open form individually before calling the Exit method.

If you're using .NET 2.0 then that's not the case anymore. Application.Exit() raises the Form.Closing events.

Inanna

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Oct 4th, 2006

Re: How to unload all open forms

This is for VB Express 2005:

VB.NET Syntax (Toggle Plain Text)
       For i As Integer = My.Application.OpenForms.Count - 1 To 0 Step -1
            If My.Application.OpenForms.Item(i) IsNot Me Then
                My.Application.OpenForms.Item(i).Close()
            End If
        Next i
       For i As Integer = My.Application.OpenForms.Count - 1 To 0 Step -1
            If My.Application.OpenForms.Item(i) IsNot Me Then
                My.Application.OpenForms.Item(i).Close()
            End If
        Next i

waynespangler

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Feb 29th, 2008

Re: How to unload all open forms

Click to Expand / Collapse Quote originally posted by Inanna ...

If you're using .NET 2.0 then that's not the case anymore. Application.Exit() raises the Form.Closing events.

Application.Exit() causes all the dialogs to get closed. but, It creates some problems in my test applicatin. is there anyother way to close all the opened forms by the current Application..??

syeedsan

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Feb 29th, 2008

Re: How to unload all open forms

end

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Posting Sensei

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Sep 23rd, 2009

Re: How to unload all open forms

Well I've try also the code below:

VB.NET Syntax (Toggle Plain Text)
Dim openForm As Form = Nothing
 
For index As Integer = My.Application.OpenForms.Count - 1 To 0 Step -1
    openForm = My.Application.OpenForms.Item(index)
    If openForm IsNot Me AndAlso Not TypeOf openForm Is DevExpress.Utils.Win.TopFormBase Then
      openForm.Close()
      openForm.Dispose()
      openForm = Nothing
    End If
Next
Dim openForm As Form = Nothing

For index As Integer = My.Application.OpenForms.Count - 1 To 0 Step -1
    openForm = My.Application.OpenForms.Item(index)
    If openForm IsNot Me AndAlso Not TypeOf openForm Is DevExpress.Utils.Win.TopFormBase Then
      openForm.Close()
      openForm.Dispose()
      openForm = Nothing
    End If
Next

but there were some forms that were not close or rather I say was not detected as openforms.

My question is when during opening the form and it encounters some errors but still able to load the form, does the form considered as not an openform?

Last edited by jireh; Sep 23rd, 2009 at 3:03 am.

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