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MDI Issues

 
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  #1
May 23rd, 2009
I have two Issue using a MDI app.
1-at this moment I'm able to open MDI child forms using the MDIparent
except when the I opens form1 I'm also able to open forms 2
and 3 .
but I only want one form to be open at a time.
2- The next issue is I have form 2 to be opened from form1 and I would like to close form2 and form1 when click close on form2. At this moment I have to close form2 then click close on form1.

Thank you
code for Q1 This is the code on the MDIparent to open the forms.
VB.NET Syntax (Toggle Plain Text) 
  1. Public Sub tbbCustomer_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tbbCustomer.Click
  2.         Dim CustomerMDIChild As New CustumerRprt()
  3.         CustomerMDIChild.MdiParent = Me
  4.         CustomerMDIChild.Show()
  5.         CustomerMDIChild.Location = New Point(Me.Width / 2 - CustomerMDIChild.Width / 2, Me.Height / 2 - CustomerMDIChild.Height / 2)
  6.     End Sub

Q2 here is he code I tried to close form2 and form1.

VB.NET Syntax (Toggle Plain Text) 
  1. Public Sub btnClose_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnClose.Click
  2.  
  3.         If m_ID = 0 Then
  4.             Me.Close()
  5.         Else
  6.             CustumerRprt.Close()
  7.             Me.Close()
  8.         End If
  9.     End Sub
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Re: MDI Issues

 
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  #2
May 25th, 2009
use a loop that will check the mdichild's forms then close them and then open the form you wanted to open...
VB.NET Syntax (Toggle Plain Text) 
  1. For Each frm As Form In Me.MdiChildren
  2.             frm.Close()
  3. Next
  4.  
  5. Dim frm1 As Form1
  6. frm1.Show
A conclusion is the place where you got tired of thinking.
http://www.martin2k.co.uk/forums/index.php?showforum=4
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Re: MDI Issues

 
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  #3
May 25th, 2009
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Originally Posted by VIPER5646 View Post
I have two Issue using a MDI app.
1-at this moment I'm able to open MDI child forms using the MDIparent
except when the I opens form1 I'm also able to open forms 2
and 3 .
but I only want one form to be open at a time.
try to use ShowDialog() instead of Show() or check for TopMost = True
Samir Ibrahim
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My Site
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Re: MDI Issues

 
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  #4
May 25th, 2009
Thanks Jireh and samir_ibrahim for your replies.
The first Issue has been solved.
I still need more help with the second Issue.
This is the coed I used to open form1.
VB.NET Syntax (Toggle Plain Text) 
  1.  For Each Form In Me.MdiChildren
  2.             Form.Close()
  3.         Next
  4.         Dim CustomerMDIChild As New CustumerRprt()
  5.         CustomerMDIChild.MdiParent = Me
  6.         CustomerMDIChild.Show()
This coed opens form2.
VB.NET Syntax (Toggle Plain Text) 
  1. Design_Report.Show()
How can I close form2 and form1 by just closing form2
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Re: MDI Issues

 
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  #5
May 26th, 2009
For Q2:
In form2, use the FormClosing event to close form1, then form2 will close after.
VB.NET Syntax (Toggle Plain Text) 
  1.     Private Sub Form2_FormClosing(ByVal sender As System.Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles MyBase.FormClosing
  2. Form1.close
  3.     End Sub

-Zander
Last edited by Zandermander; May 26th, 2009 at 5:21 pm.
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Re: MDI Issues

 
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  #6
May 26th, 2009
I have tried your code but I'm still unsuccessful. Still can't close form1. form2 closes but not form1.
When I click the Close button it jumps to the closing sub (your code)
but does not close form 1.
Help
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Re: MDI Issues

 
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  #7
May 27th, 2009
Is form1 set to the form that ends the app?
if it is, try Application.Exit in the form2 closing event.

-Zander
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Re: MDI Issues

 
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  #8
May 27th, 2009
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Originally Posted by VIPER5646 View Post
I have tried your code but I'm still unsuccessful. Still can't close form1. form2 closes but not form1.
When I click the Close button it jumps to the closing sub (your code)
but does not close form 1.
Help
I had tried this and works with me.

VB.NET Syntax (Toggle Plain Text) 
  1. 'in form2.button_click
  2. Me.Close()
  3. Form1.Close()
Samir Ibrahim
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Re: MDI Issues

 
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  #9
May 27th, 2009
Thank you for your replies but it still isn't solved.
To Zandermander your code worked but it closes the entire appl. and I only want form1 and 2 to close.
To Samir_Ibrahim yes I have tried your coed and it did not work.
It closes only form1 but it does not close form2
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Re: MDI Issues

 
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  #10
May 28th, 2009
Ok.. well try form1.hide maybe.. it doesn't "close it" but it should make it non visable.. can't test it right not.. on my phone when I get to my computer ill try some more things... though im not sure why form1.close won't work...

maybe use the code
VB.NET Syntax (Toggle Plain Text) 
  1. form2.button_click
  2. Me.Close()
  3. Form1.Close()

but switch form1.close and me.close

sorry if there are errors in this post. once again.. on my phone.

-Zander
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