Make Second-level Child Forms Prompt On Close?
Feb 9, 2010
The problem: A dialog's FormClosing() event is raised if it's a child, ie it's Owner property is set to the parent form, but NOT if it's a child-of-a-child. So closing the main form does not call the closing event on any grandchildren dialogs.
The Details: A dialog prompts to "Save Changes?", with YesNoCancel buttons, in the FormClosing() event. Clicking Cancel keeps the dialog open, ie cancel closing.
Private Sub Dialog_FormClosing(...) Handles Me.FormClosing
If MessageBox.Show("Save Changes?", YesNoCancel) = No Then
e.Cancel = True
[Code].....
Then the FormClosing() event on the child does not raise, if the top-most parent is closed.
Is this a know design limitation in the framework? Is there anything I should consider before I start hacking a nasty solution for this?
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Oct 5, 2009
I have been looking around at how I can close my parent form and my child form. This article: [URL] has some information but it either doesn't work for me or I am putting the wrong information it. What I want to happen is when a button is pressed I want to close both parent and child forms and then go to another form (frmResults). Then there will be a button on frmResults that will take me to the beginning form (frmPTCalculator). With this code below when I click the button on frmCalculator it goes to the MDI form and both parent and child forms are there.
my Parent form is called: frmGender
my Child form is call: frmMale & frmFemale
Below is what I have tried from the example in my Child form frmMale:
Private Sub btnResults_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnResults.Click
Dim frm2 As frmMale = New frmMale()
AddHandler frm2.FormClosed, AddressOf frm2_FormClosed
[code]....
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Dec 22, 2010
When my application first loads the parent opens and I select my child form from toolstrip:
'In parent open the form when option is clicked
Public Sub Showfrmitemreview(ByVal sender As Object, ByVal e As EventArgs) Handles itemreivewStripMenuItemA.Click, itemreviewStripMenuItemB.Click
[Code]....
Nothing happens I don't even get an error message. I've played around with the code numerous times and the only thing that worked was to have it open outside of the parent which I do not want to happen.
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Aug 30, 2009
I'm trying to use checkboxes to show and close child forms.I'm using MDI. I want to try and make the child form show inside of the parent form like it should.This is the code I was using:
[code]...
And that works, but if I close the window instead of using the check box and then try to use the checkbox to open the new window again i get an error:Object reference not set to an instance of an object.Also I have more than one checkbox (each one serves a child form) and I would like to be able to open and close any of the child forms at any time.
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Jul 14, 2012
I'm in the process of converting a VB6.0 application to VB.Net (2008 Express). I have a MDI parent form, I'll call mdiBackground, and 4 MDI child forms, frmStatus, frmShow, frmQwerty, and frmSentence.The layout is as follows:mdibackground - has the menus at top and is a container for the child forms.frmSentence - appears at the top frmShow & frmQwerty - appear at the left and when one is closed the other one is in the same position.frmStatus - appears at the right, it has buttons which control when frmShow and frmQwerty are to appear I have a couple of regular forms that act as dialog forms. The Me.Close() works fine on these.
[Code]...
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Aug 13, 2009
ok well eh i have a interface where i can login, but i must set the status to tell whether i am student or staff login.
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Feb 9, 2010
In this example I want the loop button works in all mdi child forms at the same time; now in the first mdi child form it will work, but when getting a new mdi child form with that, it will stop in the first one!
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Sep 14, 2010
I caused the VB.NET2008 IDE to do something extremely odd and unintentional with some code I was writing. As some of you know, I mostly write programs for industrial equipment. On one of our products, I needed to make certain forms automatically close after a timeout period. To do this, I began programming a usercontrol with a Timer on it (interval = 1000) and a ProgressBar. Timer.Enabled was set to the Enabled event so I could toggle it. When the control counted to it's timeout period, it would call Me.ParentForm.Close
So I build my project, and drop it on a form in the IDE and I see it begins counting! Huh... I had no idea timers were active in the IDE. I wonder what happens when it hit's it's trigger? I figure probably nothing since Me.ParentForm was actually the designer. When it triggered, the whole IDE crashes without save. I tried it twice now. Here's my
[Code]...
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Feb 24, 2011
How would I go about having my application automatically close an onbeforeunload prompt box that warns you before leaving the page?
Example: [URL]
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Nov 17, 2010
I working working with Visual Basic 2010 Express. I have a DataGridView that is linked up with a local SQL database I've created. I have it currently where the user can click a button to save their data to the db, but am unsure how to prompt them to save or discard changes if they are closing the program without saving.
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Apr 16, 2011
I know how to add an exit button with a prompt. However, I do not have the slightest cluse as to how I can add this same functionality to the window so that if the user clicks the X in the upper right corner, there is a prompt message confirming the user needs to exit.I added a form closing event but getting wrong results, the form closes if I click no and message window does not leave when I click yes to stay.
Code:
Private Sub frmTest_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
If (MessageBox.Show("Are you sure you want to exit?", "Close Form", _
MessageBoxButtons.YesNo, MessageBoxIcon.Question) = _
[code]....
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Mar 4, 2011
In a program I'm working on, I want a "Loading..." dialog to close when it can't log in to a site using the username and password provided by the user. Basically, I have the code set up right because the function it is supposed to carry out when that occurs does work, but for some reason it ends up in some really weird stuff happening. In the Loading form, I have it set to do "Form1.Show()" and then "Me.Close()", assuming it would simply show the login form and then close the Loading form. However, when this happens, the Loading form closes, and then for only an instant Form1 shows, and then the Loading form shows and Form1 closes. This happens forever until I stop the debugging, and I can't seem to figure out why. Am I using the wrong method? What exactly does Me.Close() do anyways? All I want to do is close the form and open another
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Aug 30, 2009
my web browser is my main form and it has a number of sub forms , how can i set it that when i close the main form my sub forms dont close ?
At the moment when i close the main form all the forms close
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Mar 2, 2009
I have a situation where me.close() doesn't close the form. I have a form with a button with the code seen below. What happens when the button is clicked is the new form shows, but the original form(calling form) is still there. When I go into debug mode, I can see the me.close() execute, but nothing happens (calling form stays open). When I close the second form both forms close. If I comment out the call for the second form to open the first form closes without problem.
Private Sub cmdNext_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdNext.Click
Dim f As New frmOrder3
[Code].....
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Jan 1, 2010
I have the following code which closes a child form which is named "frmJobheader"[code].
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Oct 7, 2009
Within my program, I have identified a process via System.Diagnostics.Processand.GetProcesses. Now I need to close one and only one of its windows whose window title i know. How do I do that?
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May 31, 2011
I just starting to use MDI form. I can show the child MDI form, without any problem. My problem is that I want to close the child form also from the parent menu bar. This is my code:
Private Sub CloseToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CloseToolStripMenuItem.Click
Dim frmActive As Form = Me.ActivateMdiChild
[code].....
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May 16, 2010
I am using Visual Studio 2005. What I am trying to achieve is the following: I have a login form (form1) for the user. On successful login, a new form (form2) pops up which allows the user to add details of a student (name, age, address, courses taken, etc).
Following is what I tried to achieve the above said:
1) File>New>Project>VB Windows Application ................for form1
2) Project>Add Windows Form>Windows Form ...............for form2
What is happening is when I close form2, the application is not getting closed, form1 still exists. What i wish is that when I close any form (form1 or form2 or form3 etc ), the entire application must close.
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Jan 10, 2010
I want to execute some code in the MDI Parent Form when an MDI Child Form has been closed. What Parent Form Event would be best.
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Jan 15, 2012
I just want to know how to close current child form and opens another? In vb.net.
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Feb 27, 2009
I need to save an XML file with close to 10k child nodes and i need to know which approach is best for it.[code]This is a web application so the choice is very important.
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Jan 2, 2010
I'm Using VB.NEt 2005.... the Problem is...If I close Mdiparent When i've opened many MdiChild Forms All Forms Also Closed.I Want that when MdiChild Forms opened if i Press Close Button of MdiParent Form there Should be a Msg that "First Close MdiChild Forms " then Close Mdi Parent.
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May 19, 2012
what I want to do is cancel a MDI child form closing when the 'X' at the top right hand side of the form is clicked.So, I use e.Cancel = True in the MDIchild_FormClosing event.However, the parent will not close if the 'X' button is clicked, and I noticed that the FormClosing event of the child handles 'Me', which I assume is the parent.Changing the handles 'Me' to handles 'nameOfChildForm' only generates an error Error: Handles clause requires a WithEvents variable defined in the containing type or one of its base types
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Apr 25, 2009
Im wondering how can i execute this code properly.. it seems i need to click the tabpage twice before my 'Save_Set_' button will take prompt or action..
Private Sub TabPage1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TabPage1.Click
teleport_controller = 1 '<--- declared as integer
End Sub[code]....
tabpage1 and tabpage2 are under in tabcontrol1 control.. the problem here is when i select to this tabpages my save_set button doesnt execute for the code.. but if i click the tabpage again its working... i dont like this kind of action at all..
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Dec 11, 2009
I build my first Project composed of several forms and it�s working just fine. Id like now to redesign the project as a MDI Application. Once created the parent form, I can create child forms but thats not what I need. What I would need is convert my already designed and working forms to MDI child forms. How can that be done?
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Feb 11, 2009
Ive been working on this project of mine for some time now... though im not involved in IT in my current company, im just trying to help to at least have their system computerized (they are still doing it manually by paper & calculator)... I have one problem though which made me stick for 2 days (and still counting) without progress...How To Drag & Drop Between 2 Datagrids Between 2 similar MDI Child Forms
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Jul 1, 2009
I know I can set IsMidContainer in forms for parent-child relationship forms. I just want to know if the parent form could be a panel. If so, how can i do it?
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Apr 21, 2010
i have a problem with trying to get 2 forms to close at different times using a timer on each of the 2 forms.
This is my form layout:
Quote:
frmMain
Frm1
Frm2
Frm1 and Frm2 are identical to each other. FrmMain has 2 buttons on it. One button to call Frm1 and the other to call Frm2.Frm1 and Frm2 each has a timer. It counts down to 0 and then does a .close(). However, if i pause between clicking the second button they both seem to always disappears at the same time.I would do something like this...
Click on the first button (showing the Frm1 form)
wait about 10 secs...Click on the second button (showing the Frm2 form)they both are shown on screen...hen they both disappear at the same time.... which shouldn't happen since i clicked the Frm2 box 10 seconds AFTER Frm1... So Frm1 should hide before Frm2 does...but it does not.
[code]....
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Apr 8, 2011
I have made a project on Library management system using Microsoft Visual Studio 2008 and Sql server 2005 .I have used MDiParent form in this project, from where I can click on the menu item to open the desired form.
I am now able to open the child forms in the main window background.Now what happens is When I click on one menu Item it open in the parent form background.I am able to open all child forms corresponding to the click event in the MenuToolStrip ...all in the Parent form Now the problem is that I cannot minimize child forms when I minimize Parent form..I want child forms also to minimize along with the Parent form.. Also are child forms still not attached to the parent Form is also my question here.....
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Mar 26, 2011
i'm a beginner in MDI form. i created a MDI form with buttons and child forms. when i click the forms continuously, many forms will be opened. how to avoid forms overlapping, in other words, duplicate
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