Forms :: FormClosing Messagebox Keeps Popup And Won't Exit The Application
Aug 5, 2011
on the form event: FormClosing I have this code that saves a treeview to xml, when it is saved it displays a message, but when I click the messagebox OK button, the messagebox keeps popping up and won't close that form.Here is the code I use:
Private Sub AddressBook_FormClosing(sender As System.Object, e As System.Windows.Forms.FormClosingEventArgs) Handles MyBase.FormClosing
'Build our List of custom objects from our TreeView's Nodes
[code]....
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Jun 12, 2007
I'm having a bit of a problem getting my application to close properly. Basically I have one main form from which all other forms open. If a user tries to close that main form, I want to bring up a MessageBox asking if they want to exit the application.However, when I try to do that it asks the question twice. It seems that the Application.Exit() is triggering the FormClosing event again for some reason, but I don't know of another way to exit the application. BTW, the main form isn't the startup form so I can't use the option to close when the startup form closes.
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Mar 31, 2011
I have a form which checks on load if an host (ip) is available. If not it shows a messagebox and exits the application.
Here is when the problem occurs.
Now the messagebox shows just a short time, then the app exits automatically. But what I would like is, after a user hits the OK button the app exits.
Here is the code I use:
Private Sub SplashScreen1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Try
[code].....
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Mar 27, 2012
I have a single windows form application that is running in system tray icon.If the user press X button of the windows form a messagebox is displayed with Yes and No ( Yes ->close the form---No->keep the form running in system tray icon).I was thinking to prevent the scenario when the user open another instance of the application when there is already an instance running so i have used this code :
If Process.GetProcessesByName(Process.GetCurrentProcess.ProcessName).Length> 1 Then
MessageBox.Show("Another instance is running", "Error Window", MessageBoxButtons.OK,
MessageBoxIcon.Exclamation)
Application.Exit()
End If
The problem is that when i want to test this the message is displayed but after i press ok, a new messagebox appears (that one from Private Sub Form_FormClosing ).If i choose NO i will have to instance running!I have read that Application.Exit fires the Form_FormClosing event.Is there any possibility to cancel the triggering of the Form_FormClosing event?'this is the formclosing
procedure
Private Sub Form_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
Try
Dim response As MsgBoxResult
response = MsgBox("Are you sure you want to exit", CType(MsgBoxStyle.Question + MsgBoxStyle.YesNo, MsgBoxStyle), "Confirm")
[code]....
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Jul 9, 2010
I have a basic three form application. It doesn't seem to close after navigating through forms. If I were to open the application, and the main form is displayed. If I press the X button, the application closes fine(Goes from processes) If I were to open the application, and then navigate from the main form to another form using me.hide & form1.show, and press the red X on Form1, the application again, closes fine.
[Code]...
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Aug 24, 2010
I'm a newbee with VBnet , I use vbnet2005 I have a major form called FORM1, and when I click the bottons in it it shows another form for example-I have these some forms (printscreen):
FORM1 - major form
FORM2 - calculation form ( there are few forms like this)
FORM3 - result form
What I need is:When I open FORM2 and get results I push the botton SEND and then it should send the values into FORM3 I don't know if the public variable will be good here because they are not constant , I can get different results in FORM2 ,and these results should be writen in textboxes only after I push send bottom.
I hope it is clear , I don't know how to do it,if you can give me a code for this or detailed answer , I would be very glad.
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Mar 3, 2011
I know that
message.show.add
Displays a message box pop up. How do you go about creating a listbox pop-up similar to the message box pop-up? What is the listbox code equivalent to the above code?
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Aug 17, 2009
I would like to have my messageboxes popup in the center of the parent form. When I resize and move the parent form the popup messageboxes open center screen. I have tryed searching for an answer but have come up empty. I am programming VB 2008.
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Feb 21, 2011
I have a mini form application. What I need is to have a message box asking the user to confirm exist. Yes/No. This should happen if the user click the exit button on the form or the (X) on the title bar.
I have this piece of code attached to the exit button on the form. I'm trying to use an if statement but don't have a clue as to how I can apply it to what I already have.
Private Sub btnExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExit.Click
MessageBox.Show("Are you sure you want to exit?", "Confirmation", _
[Code].....
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Aug 20, 2010
I have just done my program, just skeleton not completely, the final problem has not been solved up to this time.When I run my application, the Icon of its will be showed at TaskTray. I would like the icon is there when I exit fom of application and then If I double click on the Icon, the application will be showed.
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Jan 20, 2010
I'm developing a program using VB 2005.I've tried to use the following instructions to "kill" the application
Application.Exit()
Environment.Exit(0)
(not at the same time)
[code]....
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Oct 31, 2010
My routine to check for updates is run as a separate process. Exiting the application is required to update, so a dialog asks the user, when an update is found, if they want to exit now. f they do, the code (from the update thread) calls Application.Exit().However, if the FormClosed event of any form that needs to be closed needs to access its controls, an invalid cross-thread operation is detected (which sounds pretty logical).
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Mar 1, 2011
I have a Main and a Secondary form. I want that the secondary form appear if the no button in the messagebox is pressed (but the main main don't). Only if I press the yes button or when closing the secondary form the Main must appear. How can I do that?
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Aug 23, 2011
I have an application that has a timer within the main form. Every 5 minutes it checks the database for notifications and if any are due it displays the details in a messagebox. If the main form is the active form, it works fine (message displayed). Even if I create another form and display that modally, the message is still displayed. If I minimize this second form, the message is displayed.
However, if I am writing an email when the timer is called, the message box isn't displayed on top.Is there any way to make sure the MessageBox.ShowDialog method always displays the dialog as topmost?I have tried using a new form instead of MessageBox.Show, setting the TopMost property to true, but that didn't work, either.
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May 3, 2012
I want to show a MessageBox in a VB.NET application that has special markup for its text. More specifically, I want to display an unordered list. I tried doing it by wrapping the text in HTML tags (which Java Swing supports for example, if I'm not mistaken) and working with <ul> and <li>. This did how to do it without creating a completely custom messagebox class?
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Mar 26, 2011
I am trying to make a routine to handle closing a program with a confirmation dialog box. The problem I am having is I cannot get the confirmation to work right. [Code] If I run this nothing happens. The dialog box goes away but the program stays open. I have also tried options with e.cancel and my version of visual studio (2008) does not recognize that as a proper command.
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Feb 16, 2011
I have a DataGridView and when user clicks on a row, a messagebox pops up with some value. I would like to copy some portion of this text from the messagebox. Is there a way to do it?
Private Sub DataGridView1_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellContentClick
[Code]....
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Nov 30, 2010
i have a form that takes a long time to open (because of the volume of data and the devexpress scheduler controls on it). I would like to pop up a progress bar (embedded in a form) to show until the form loads and is finished loading.i added two public methods in the My.MyApplication class...the form with the progress bar shows, but is stuck and doesn't animate.i figure that i need to open this form in a separate thread, but have done no work with multithreading.[code]is there an easy way to make this form always open in a different thread so that it will animate and show my "loading.."
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Feb 7, 2009
I Have a Windows Form -Personnel form After you finish entering data there is a save command button become visible.this Save Btn works properly with this Function.[code]
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Feb 28, 2011
I teach VB in college, using the Express edition. I was doing an exercise with my class today using the MessageBox.Show() method in a Windows Forms application. But when I tried entering it in the edit window, it gave me the following error message: 'show' is not a member of 'MessageBox' and it did not show up in the Intellisense box. Most of my students' computers did work with that method, but one or two of them didn't. Meanwhile, I had to revert to the MsgBox() function to get through the exercise.
[Code]...
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Oct 9, 2010
I have managed to create and code a file menu exit with the following code, however I just can't seem to find out how I am able to edit the red X in the top right hand side of the form next to the minimise and maximise buttons?
Private Sub ExitToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ExitToolStripMenuItem.Click
Dim close As String
close = MessageBox.Show("Are you sure you want to exit?", "Exit Log Book", MessageBoxButtons.YesNo, MessageBoxIcon.Question)
[Code]...
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Sep 3, 2009
I am trying to close my application and I have coded on the form closing, form closed events to call an exit form which asks the user for confirmation to exit or not. All works fine. When I press the X button on the winform things act different. On the main form where I press the X btn I store some user ID data that I use throughout the app. If I press cancel on the exit form that data is lost from the main form and cannot be used afterwards. So if the user pressed by mistake the X btn and then presses cancel on the exit form the application loses some stored data and many functions stop working.
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Nov 2, 2010
Maybe the title isn't very clear on what I try to do, but here's the explanation.
First I use vs 2010 I have a form and a button, the button is to change the form background image.When I click the button I want a popup to appear with 3 or 4 columns of thumbnails to chose from.
But the thing is, don't know how to do this.
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Jan 31, 2009
I have a validating event for a txtbox called txtname. If the user tries to leave txtname for another txt box without entering their name a messagebox comes up giving an error. I have an exit button which will when clicked ask you if you really want to leave then you can choose yes or no. I can't seem to figure out how to allow the user to click the exit button while leaving the txtname blank so it would bypass the error message and only bring up the exit prompt. Here's what I have coded for the validating event and the exit event.
Private Sub txtName_Validating(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles txtName.Validating
If IsNumeric(txtName.Text) Then
[Code]....
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Dec 12, 2009
When a messagebox pops up, how can I bring a form infront of the messagebox (or switch betwen different forms) and then bring the messagebox back again again if I want to click OK button to proceed with the remaining code?
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Aug 5, 2010
I am having trouble with some code I am writing to handle an Excel spreadsheet. The idea is that the dialog box is displayed which invites the user to select an Excel spreadsheet. Once they have done that, it is opened and a separate function checks to see whether Sheet1 exists returning Nothing if it is not found. The intention being the try/catch block picks it up and gracefully does nothing. The problem is that when the function returns nothing, the dialog box is still displayed and the sub doesn't seem to exit. [Code]
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Aug 5, 2011
I have recently implemented to following code on a good deal of my forms.
Public Overrides Function InitializeLifetimeService() As Object
Return Nothing
End Function
It has worked great to solve some of my odd application hangs when the application has been running > 1 week.However, when the user closes the program I now get an Application Crash screen.how to stop this? how to put it back to "normal" with a global variable?
Public Overrides Function InitializeLifetimeService() As Object
if readytoExit then
' Return... not nothing?[code]......
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Jan 25, 2012
My application exits sometime without any exception. I am using loop in separate thread to read HID device.
Private Sub USBListenServer()
If (readHandle IsNot Nothing) AndAlso (Not readHandle.IsInvalid) Then
Try
[Code].....
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Dec 8, 2010
Can anyone tell me what the technical difference is between Application.Exit() and End?Why would you choose to use one over the other, for example?
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Jan 26, 2012
Which is the best or corrent method for exit application?
[code]...
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