How will i close all the forms within my main form? Everytime I click on the menus of my main form,I'm setting my main form as MDI-Parent form and then loading a new form as it it is the child form if I'm not mistaken. I have a log-out menu, and what I want to happen is everytime I log-out all the forms within my parent form will be closed. How will I do it? Here are some of my codes.
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I have the following code to close a form which is a child. The problem is that when it closes, it closes the MDI parent too.
Private Sub frmTransaction_Closing(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
If ListView1.Items.Count >= 1 Then
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It is my goal to write a program to run a retail store. I am an intermediate Access developer, so I have a good grasp of the basics.However, I find that developing in VB 2010 is quite different.I will have forms for:
Company Information
Employee Information
Supplier Information
Customer Information
Invoices & Purchase Orders
All I really need to know at this point is the code to open and close each form.
Dim frm As Form
For Each frm In Forms
Set frm = Nothing
Next frm
The above code is what I used in VB6 to close all forms associated with my programs before my program closed. I have been searching for information on how to make sure all forms are closed when closing a VB2008 program.
I have seen info on using the Project Property Shutdown mode When startup form closes and I currently have this set.
Is this all that is really necessary? Will the garbage disposal close everything else to free up RAM?
Also, if I have several forms open and want to close all from the main form without closing each one individually, what is the best approach? Is there a collection like in VB6, go through the collection, compare it to the name of the main form and close it if it is not the main form?
I have a parent form that has a list of items and each item has a unique ID. The user can open one or many of the items in a child form (it is set up in a tabbed MDI), but it can only open one instance of each item at a time.
In the parent form, I was going to make a collection (or something like that, maybe there is a better way) to keep track of which items are open in the child forms. I need to know when each child is closed so that it can be removed from the collection and reopened at a later time. I was thinking that when the child form closes, it somehow does something (like raise an event) that tells the parent form to remove the unique ID from the list of current open child forms.
My questions are, is this a good way to do this and I am pretty sure I would use the form closed event in the child form to update that parent form, but as well, I didn't know if this is the best way of handling it.
If raising the event is a good way, are some examples on how to do it out there? I found some for controls, but not while the form is closing/closed.
VB Windows form Application.. I am developing an application of which part of the program is around configuration settings allowing the user to enter configuration items. When the menubar item for configuration menu is clicked on the main form the menu opens.This is fine but the mainform should not become active again until the configuration menu has closed. This does not happen right now and the mainform simply comes to the foreground and the configuration form goes to the background... I realize that coding an event on the Child form to handle this would not work because the child window loses control and the main form gains control.. I thought of coding a function as follows on the main form but it does not seem logical because i would have to add to it for everyform and do checking to make sure the child is actually open before trying to close it..
Private Sub Form1_GotFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.GotFocus
MailSettingsWindow.Close()
RentalSettingsWindow.Close()
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I did away with the above sub routine and used the below code as per the recomendation of using showdialog which works just as i was looking for.
Private Sub MailingAndEmailSettingsToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MailingAndEmailSettingsToolStripMenuItem.Click
Dim MailConfig As New MailSettingsWindow()
MailSettingsWindow.Showdialog()
End Sub
i have a parent form which is having a grid view. In the KeyDown event of the grid view i am calling a child form. If the user closed the child form, my application should close both the parent form and child form. What i have done is, i declared a boolean in the child form and passed the boolean value to parent. May be the code below will give the picture of what i am trying to do.
Private Sub gvJournalEntryDet_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles gvJournalEntryDet.KeyDown
I would like to know if its possible to start up a second windows forms inside the parent form. Ex: A button is pressed and a new form is showed. I would like to keep that new form inside the parent form, and have it not be able to go outside the parent form.
View 2 RepliesIn my one form I have a cancel button whcih is supposed to the form when the button is clicked. But its not closing the form. What could be possible reasons. I am using VS2008.Net3.5
The code is:
Private Sub cbCancel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cbCancel.Click
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i have created two forms A and B when button in form A is clicked B is invoked when B is running its not possible to work on A until i close form B. How can i work on A without closing B
View 5 RepliesIam a beginner to vb.i have a project work,related to Quotation software.i want to know how to unload all forms that are loaded on to a panel when clicking a Button.here i did some codes, in that, one error is displaying like "Collection was modified; enumeration operation may not execute." the code is given below:[code]
View 1 RepliesI am attempting to find a way to get an existing form to close and re-open (with the controls re-set). If I use a method like
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I want to do something like when click on the close button, a message box will pop up and if yes, close it else remain in the same form. But the following coding seems only consider one side while the other side is ignored.
Style = MsgBoxStyle.DefaultButton2 Or MsgBoxStyle.Question Or MsgBoxStyle.YesNo
Check = MsgBox("Do you want to quit?", Style, "Exit confirmation")
If Check = MsgBoxResult.Yes Then
Application.Exit()
End If
Going around in circles here. I have an Exit button (Barbuttonitem6) on my form and would like the FormClosing event to handle this. The code works fine for the FormClosing event but when i try to call the Formclosing event from Barbuttonitem6, it does not work (The form does not close if i choose Yes to save or No)
Public Sub BarButtonItem6_ItemClick(ByVal sender As System.Object, ByVal e As DevExpress.XtraBars.ItemClickEventArgs) Handles BarButtonItem6.ItemClick
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I am creating a VB program that has a Main class, and 4 windows forms. Each of the forms has a back and a next button to navigate trough the forms. The problem is that when I hit next (Here is the code)
Private Sub continueButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles continueButton.Click
VS 2008 Remember Textbox Text when Form reopens
I have a form with text boxes ,masked text boxes e.t.c there is a binding (data) source MytablebindingSource). when i open the form the on form_load event i use the following code
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Form1 is a mdi container. It has a bunch of forms that can load inside of it as mdi children. If I close each open form inside the form1, and then click the red X at the top right, application exits fine.If I click the red X without closing the forms inside I get: An unhandled exception of type 'System.CannotUnloadAppDomainException' occurred in mscorlib.dll
Additional information: Error while unloading appdomain. (Exception from HRESULT: 0x80131015) However I can break from it. How do I get the application to not show that error? What must I do to fix those inside forms or close when the red x is clicked?
im making a 'program' and its a Head form. with 3 Subforms in it. Well. i added a Menustrip.As soon as the forum starts i have a Load timer. (see Image 1)
1.Thats how it needs to be. Also when the Subforms are loaded.But, Now the problem. When the forms are loaded. The Menustrip ends up wrong placed and Resized?
2.How to work this away? The menu strip needs to stay On top of all the others. and the Menustrip goes back to normal as soon as i click one of the Title bars of the Subforms?
I have a main form that stays in the background of my program. Other windows open and are owned by the main form. Think of it as your desktop.It's not a MDI form; I can't use a MDI form for this project because it's too limited for me.
View 2 RepliesWhen I click on Borrow Book(s) from Transaction menu it should open frmborrow.vb
Also to it should do the same to rest of the menu(s)......
What should i write in the click event for Borrow Books from Menustrip menu
hey I have a piece of code which gives fade effect to a form at load eventBut it works only with normal forms and doesnt work for the forms which gets loaded into a mdi parent form
View 13 RepliesI'm trying to make an MDI parent form to call other forms. I have put this code which I found in a post here into the main form which I added to my project as an MDI parent form:
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I get an error message which say FrmEmbed is not defined. How can I correct this?
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
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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.
I have a MDI Parent Form and some Child forms.I have some controls on MDI Parent form but as i open child form all the controls of MDI Parent form display in child forms...I m stuck with my application
View 1 RepliesI'm writing an MDI app in vb.net vs2010. The MDI form has the default MDIMenustrip menu with several menu items. Each has some subitems. None of the child forms have a menustrip defined. I thought it would be easy to call a public subroutine in the MDI that would disable or enable the MDIMenustrip items. If I execute the routine from the MDI form, the menu items disable/enable just fine. THe problem I have is when I call the routine from a child form. How can I control the MDI menu from a child form?
View 3 RepliesI have created a parent form and 2 child forms. Each of the forms have menustrips. When i run the application the menu strip appears on the parent form but not on the child forms. I have the menu strip set to visable.
View 4 RepliesI have a main form, and some sub forms, and each sub form can have some sub forms. When I have multiple sub forms open, and I try to get data from the parent form, it returns the data from the wrong parent form.For example I have two instances of Mainform.subform running. If I do something like this in a child form of one instance of the subform. It returns data from the other subform.
dim l = Mainform.subform.listofdata
Edit:I am using visual Studio 2008. Winforms, form designed using designer. In my mainform I am doing this
Protected Friend frmMain as Mainform
frmmain = new mainform
In frmMain I am doing this
Protected Friend frmsub as new Subform'
frmsub = new subform
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I want a set of child forms to keep their relative sizes and locations to their parent form when parent form is resized. So if one child form is opened and covers the lower right quadrant.. it will remain a quadrant for whatever resize is done on parent form.
View 3 RepliesI am working on a .NET console app which needs to clean up resources on exit. The problem I'm running into is that I don't get any notification if the cmd parent is closed via the console window [X], via Task Manager/Process Explorer or programmatically with WM_CLOSE. I can live with not being able to handle Kill Process from Task Mgr. or ProcExp. WM_CLOSE of the parent console is the most likely way that this application will be closed before it's finished processing.
Here are the events I've tried to register for so far:
AppDomain.CurrentDomain.ProcessExit += CurrentDomainProcessExit;
AppDomain.CurrentDomain.UnhandledException += CurrentDomainUnhandledException;
Console.CancelKeyPress += ConsoleCancelKeyPress;
Application.ApplicationExit += ApplicationApplicationExit;
[Code] .....
These events fire properly when I send a CTRL+C from the console or the application finishes uninterrupted. But none of them fire when the parent app (cmd console) is closed. (The parent/grandparent processes aren't CLR so I'm not sure I would ever receive those Disposed/Exited events. Those are just shots in the dark.) I've looked at some pInvoke stuff but I would rather not go down that road if .NET is an option. Is there a way to detect and handle a shutdown in these situations? I am open to any .NET, pInvoke/Win32/C/C++ solution. (Basically any way it can be done on the Windows platform.). I'm still working with .NET 2.0 so I can't use anything introduced in .NET 3.0+
I'm trying to give the user a chance to cancel FormClosing of MDI Parent by throwing a "Are you sure?" msgbox with an e.cancel however when FormClosing is invoked by MDI Parent, all MDI Children close first, before the msgbox appears.
I was wondering if there's an easier way to prevent MDI Children from closing rather than having to e.cancel every child form's FormClosing until I get a positive response to close and then push all the close events on the children because that seems like too much of a hassle if you have a lot of MDI Children.
EDIT: I guess the only solution I can find is adding If e.CloseReason = CloseReason.MdiFormClosing Then e.Cancel = True to the FormClosing event and using ApplicationExit instead.
