Closing multiple forms

You can do thin on close event:

My.Application.OpenForms.Item("YourFormName").Close()

03.05.2008 at 03:56PM PST, ID: 21056024

This might sound stupis but how do I enter that into the form close event?

03.05.2008 at 04:02PM PST, ID: 21056067

Rank: Sage

You can do this on the form that you want to close the other:

Private Sub frm_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
My.Application.OpenForms.Item("YourFormNameToClose").Close()
End Sub

03.05.2008 at 04:16PM PST, ID: 21056154

Hi I'm getting this error...
An unhandled exception of type 'System.StackOverflowException' occurred in mscorlib.dll

on this line...
My.Application.OpenForms.Item("Form2").Close()

03.05.2008 at 04:19PM PST, ID: 21056178

Rank: Sage

Then from of the name is "Form2" ?

03.05.2008 at 04:28PM PST, ID: 21056232

The form I put the code in is form1 and when form 1 is closed I want form2 to close also.

03.05.2008 at 04:36PM PST, ID: 21056273

I dont know if this helps but form2 is actually the mdi parent and form one is the child.

03.05.2008 at 04:54PM PST, ID: 21056362

Rank: Sage

Try this:

Private Sub Form2_FormClosing(ByVal sender As System.Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles MyBase.FormClosing
For Each frm As Form In Me.MdiParent.MdiChildren
If frm.Name = "Form3" Then
frm.Close()
End If
Next
End Sub

Attention: This event will fire also when you close the MDI form.

03.05.2008 at 05:48PM PST, ID: 21056592

Rank: Genius

When you create your MdiChild (Form1), use AddHandler() to wire up its FormClosed() event. Completely Dispose() of it though before you close the MdiParent:

                       
         
           
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             Public Class Form2
 
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim frm1 As New Form1
        frm1.MdiParent = Me
        AddHandler frm1.FormClosed, AddressOf frm_FormClosed
        frm1.Show()
    End Sub
 
    Private Sub frm_FormClosed(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosedEventArgs)
        Dim frm As Form = DirectCast(sender, Form)
        frm.Dispose()
        frm = Nothing
 
        Me.Close()
    End Sub
 
End Class

           
         

Open in New Window

03.06.2008 at 07:34AM PST, ID: 21061144

I have tried both solutions and neither seem to work,I think maybe I'm getting a little muddled up here.
Ive started a new project now I have a form called MDI_Container_Form and a form Called Test_Form. Test_Form Is a child to MDI_Container_Form and when the program is run Test_Form opens up instantly inside MDI_Container_Form. What I' like to do is when the red cross next to minimize and maximize is press on Test_Form that it also closes the MDI_Container_Form.

03.06.2008 at 07:39AM PST, ID: 21061240

Rank: Genius

I'm 100% certain my code works in VB.Net 2005...here it is again with your form names:

                       
         
           
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             Public Class MDI_Container_Form
 
    Private Sub MDI_Container_Form_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim tf As New Test_Form
        tf.MdiParent = Me
        AddHandler tf.FormClosed, AddressOf frm_FormClosed
        tf.Show()
    End Sub
 
    Private Sub frm_FormClosed(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosedEventArgs)
        Dim frm As Form = DirectCast(sender, Form)
        frm.Dispose()
        frm = Nothing
 
        Me.Close()
    End Sub
 
End Class

           
         

Open in New Window

Accepted Solution

03.06.2008 at 09:09AM PST, ID: 21062418

Rank: Sage

>> Test_Form opens up instantly inside MDI_Container_Form
But that is not what you asked in the beginning. You want to close the project wuen Test_Form closes =

You just need to do this:

Private Sub Test_Form_FormClosing(ByVal sender As System.Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles MyBase.FormClosing
Application.Exit()
End Sub

Assisted Solution

03.06.2008 at 09:53AM PST, ID: 21062921

Rank: Genius

What is the purpose of the MDI container if you want the whole app to close when the child is closed?

Wouldn't a single form suit this task better? I don't think you are giving the big picture... ?

Application.Exit() will certainly close both forms...but what if there are other forms you want to stay open?

03.06.2008 at 10:00AM PST, ID: 21062988

Rank: Sage

>> Application.Exit() will certainly close both forms...but what if there are other forms you want to stay open?

Idle_Mind,

From is last post I understand that he have only two forms and want to close the application. Maybe I'm worng!!!

03.06.2008 at 10:45AM PST, ID: 21063369

Rank: Genius

You're exactly right jpaulino...that is what he has DESCRIBED.

I'm just wondering what the point is! Why bother with an MDI approach at all? Killing the whole app seems like using a nuclear bomb to kill a fly. Just wondering if we aren't getting the "bigger picture" here....

03.06.2008 at 01:21PM PST, ID: 21064904