Validate Event From Executing When "X" Close Form Is Clicked
Apr 21, 2011I have some code in a textbox.Validating event I don't want to execute when the user clicks on the form "X" button to close the form.
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Get A Button On Form A To Open Form B And Then Close (not Hide) Form A When Clicked?
Jun 12, 2009get a button on form A to open form B and then close (not hide) form A when clicked?Background: I am coding a VSTO application for Excel in VB2008.
Private Sub FormAButton_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles FormAButton.Click
Dim FormB As New FormB
[code]....
Do Not Close Form If No Button Clicked?
Feb 8, 2010How do you fix this code so it works?
Code:
Public Sub btnExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExit.Click
[code].....
Have One Form Close And Another Open When A Button Is Clicked?
Dec 13, 2010I'm making an equation program and I want to have a main menu where the user can select an equation and then when one of the buttons is clicked, it closes the "selection" form and opens the appropriate form. For now I just have it set to show the proper form (for example, Form3.Show) but when I try to do something like Me.Close() after it, everything closes instead of keeping Form3 open.
View 2 RepliesForms :: Skip Validation Of Active Control When Form's Close Button Is Clicked
Aug 12, 2009Is there any way to skip a the validating event of the active control when the close button of the form is clicked. It is very annoying when user wants to close the form, but due to the validate event of the active control, it asks for the valid input. The user is forced to give valid input to close the form. I have searched a lot for this on net but no any proper solution could be found.
View 5 RepliesValidate One Button Is Clicked Before Another With Javascript?
Sep 3, 2010This is in ASP.NET. We are using a ExtJS frontend, and have our own VB.NET controls to make all the Ext Forms and stuff. However, I hope this can be done in plain javascript. There is already some Javascript on the page for the 'Test Connection' button click and handling the result.However, I need validation on the screen to make sure that a user tests the connection BEFORE saving the screen. (Hits the test button before hitting the save button) -- EACH time they visit the screen.
View 2 RepliesError On Me.Close() Event Of Form
Sep 15, 2010I have a VB.NET application writtene using VS 2008 and have been receiving a weird error when a form is closed - it gives me the following error message:
Windows has triggered a breakpoint in MyApplication.exe.
This may be due to a corruption of the heap, which indicates a bug in MyApplication.exe or any of the DLLs it has loaded. This may also be due to the user pressing F12 while MyApplication.exe has focus. The output window may have more diagnostic information.
The immediate window then has this error message:
Critical error detected c0000374
I tried fixing this by just hiding the window, but this simply moves the error up the chain and I get an error when exiting the program as it tries to close the form:
Unhandled exception at 0x7700e29b in MyApplication.exe: 0xC0000005: Access violation writing location 0x00000000.
I don't think I'm doing anything particularly strange in my application - reading from and writing to a database is about as complicated as anything gets for me. I've tried using AppVerifier, but then the program won't even open. I'm at a real loss as I don't know anything about memory management, or what a heap is. I just can't work out why this error is happening
By the way, the application compiles and runs fine on my old 32-bit computer running WinXP professional, but my new 64-bit Windows 7 computer is just not having it, even though I have targeted the compile for x86 and followed every bit of advice I could find on geting it to work in Windows 7. Should Windows 7 and VS 2008 really be incompatible? Do I need to get VS 2010 instead?
MDI Child Form Close Event?
Jan 10, 2010I 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.
View 6 RepliesStop A Form Close Event?
Feb 19, 2008What I'm trying to do is your basic "You have made changes... yes/no/cancel" messagebox to show during a form closing event, and when they click cancel to stop the form from actually closing (Whereas yes would save and close, no would just close).
[code]...
Form Close In Form Load Event?
Nov 19, 2009I have two forms , first one is search and second is showing the data searched by first form search criteria. When the search query runs it takes lot of sql server resources, so I have passed that query to second form, it searches in database and shows the results. But if the results are not found I wish to close the second form in Form load event. As Second forms form load event searches for the record. I tried to use SecondForm.close in SecondForm.load event but failed to do so.
View 4 RepliesDisable The Validating-Event When Form Close?
Dec 5, 2005i have a form hold some textboxes ,writed validating-event code and sometime set cancel=true in validatingnow,the problem is,when i click the close button of the form,the validating-event fired,and the form can't close when the validating set cancel=true,but this not i want.i think click "close" that meaning abandon all the form's data,so it not need validate.how can i do ?
View 2 RepliesWinforms - Handle A Form Close Event?
Apr 27, 2011I have used the below code but its not showing the msgbox. What is wrong with this code ?
Private Sub frmSimple_Disposed(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Disposed
Dim result = MsgBox("Are you sure you want to Exit ?", vbYesNo)
If result = DialogResult.Yes Then
me.Close()
End If
End Sub
Make Sure 'ProgressChanged' Event Executes Completely Before Executing 'RunWorkerCompleted' Event Of Background Worker
Sep 20, 2010Starting from my understanding about Background worker control, I understands that the background worker runs the code in its "DoWork" method in a seperate thread, while ProgressChanged and RunWorkerCompleted events are executed on the main thread.In my senerio, I report the progress and under an specail condition my application displays a message box to the user in "ProgressChanged" method using MessageBox.Show(). and in "Run Worker Completed" event the application finalize some work. There the sequence is important, suppose that the message is of Yes or No type and finalization depends on it. Now when i run my application, the background worker triggers "ProgressChanged", but as soon as backgroundWorker's cancelAsync() is called the program leaves the current "ProgressChanged" method and executes "RunWorkerCompleted" code first.How can i make sure that the "Run Worker Completed" code executes only after the completion of ProgressChanged method.
View 9 RepliesApplication Firing Shutdown Event On Form Close?
Sep 10, 2010I have a login form that when the user clicks OK and logs in successfully it loads the main application form.However when I show the main form and close the login form, the app is firing the shutdown event.Is this because the app thinks that the login form is the only form open and thus fires the shutdown event?Here is the code for the login routine, when I call Me.Close() at the end is when the shutdown event is fired. Am I doing things out of order? I used to do it this way in VB6 with no problems (I know they're a lot different).Note, it's nothing in frmMain either, this happens no matter what form I try to open.
Private Sub btnOK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnOK.Click
'iLoginResult = 0 : Success
' 1 : Invalid user name or password
' 2 : Other login error
[code]....
Kill A Form After FormClosing Event Is Overridden To Hide Rather Than Close?
Apr 12, 2010I have a simple Windows Form that hosts property controls at runtime. When the user clicks Close [X] I want to keep the window and its contents alive rather than killing it by handling the FormClosing event, canceling the event and simply hiding the form.
That's fine but at close of the application I need to actually close the window. I implemented the below but it feels kludgey. Is there a simpler, more clever way to handle this situation? (The form's controller calls KillForm explicitly after it receives a closing event from the main window.)[code]...
Close Excel When No Is Clicked?
Jun 14, 2009I have a [code]...
and even when i click yes, it closes the workbook. I would like it so that when i click yes, it shows the messagebox, but when i click no, it closes the workbook.
Two Objects That Are Raising Some Events - Pressing A Button - Raise A Custom Event, Then Execute A Method And Then Close The Form
Mar 30, 2011Problem that you may have when dealing with two objects that are raising some events. Here, to make it obvious, I am closing the form, but the problem can be experienced with any other 2 classes event. First, what is the problem !
Let suppose that by pressing a button, you want to raise a custom event, then execute a method and then close the form
In that case, you may use a code similar to this
Event BeepIt()
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
RaiseEvent BeepIt()
[CODE]...
Close The Windows Application Down After The Ok Only Message Box Has Been Clicked?
Jul 7, 2009For now i have not finished my code and as i am still really playing with .net to learn the different functions how can i close the windows application down after the ok only message box has been clicked? here is the code so far:
[Code]...
How To Detect That Some One Has Clicked On Close Button Of Title-bar
Apr 11, 2009I am developing an application in Vb.net 2008.In it I wish to add a conformation message box when ever someone attempts to close the application window.So I want to detect that some one has clicked on close button which is present on title-bar of my window.
View 3 RepliesClick Event Not Executing
Jun 23, 2011First, Im new to VB but have been programming for 20 years.
Ive been creating an application that starts with a form that has 4 text boxes with corresponding search buttons.You key something in to one of the text boxes and click the corresponding search button and it would execute the code in the button click event. It worked.
Ive done something though to make it not work.When I run it and click on the button it doesnt run the click event.
If I double click on the button in the development mode, it should, I thought, go to the click event in the code but it doesnt.It creates a new click event with the same name as the original but with a_1 appended on to the end of the name.
Form_Load Event Not Executing?
Oct 28, 2010I have a form that I call from another form. Whenever I call it using form.showdialog() or form.show() the form appears, but it never executes the code that is in the form_load sub.
What's the deal? I call other forms in the same manner and they all load and execute the load code without issue.
Force Close Application - Code Is Executed When A Button Is Clicked
Sep 2, 2011I have a backup script i made in VB. part of the code im having trouble with:
HTML
code:
Now this code is executed when a button is clicked, if the folder does exists, it displays a message and continues the backup. however if it does not it displays displays "does not exist box" then i want the application to close.
I played around with the application.exit commands but it seems like the code just skips over it, and continues to try and backup the data, then errors out. how do i make the application close, if the dir does not exist?
Give Prompt When User Clicked The X To Close Application/Window?
Apr 16, 2011I 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]....
Vb2010 Have The Msgbox Close After A Set Period Of Time If The User Has Not Clicked On OK?
Apr 17, 2012When displaying a message to the user using 'msgbox', is it possible to have the msgbox close after a set period of time, if the user has not clicked on OK?
View 2 RepliesVS 2008 : Modal Form Hide Instead Of Close - Main Form Does Not Close
Mar 20, 2009I have a main form that has a button with which a smaller form is shown. Think of the smaller form as the Find/Replace dialog in many applications, such as Notepad. It's important that the form is (what I believe is called) modal. What I mean is that it always stays on top of the main form. I ensure that by calling the Show method with "Me" as the owner argument. Whenever the small form loses focus it will not disappear into the background but stay visible (albeit out of focus). If you don't understand open up Notepad and have a look at the behavior of the Find/Replace dialog.
Here's my problem: instead of actually closing the form when the X is pressed, I want it to simply Hide itself, so its position and the state of any controls (checkboxes etc) is preserved automatically.To achieve this I simply cancel the FormClosing event and Hide it:
vb.net
Private Sub Form2_FormClosing(ByVal sender As System.Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles MyBase.FormClosing
[code]....
To show the form, I use the following (note the (Me) to make the main form the owner of the form; this ensures that it remains visible even when it is out of focus):
vb.net
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Form2.Show(Me)
End Sub
Now. When I run my project, and open the Form2 (small form), then hide it again (by 'closing' it), I can no longer close the main form (Form1)! It seems the main form cannot close when the small form still exists (albeit invisible)...?? When I don't use the Me argument in the Show method, I don't get the behavior I want. I know I can set the TopMost property to True but that will also cause it to become visible on top of all the other forms, even windows not part of my application.
Executing Different Methods On Button Click Event?
Aug 2, 2010I have created a class, in which button control is created programatically. The click event is added using "Add Handler". Now I create an instance of this class whenever I want to create a new button. The problem with this design is that in the ButtonClickedevent I have to write swtich cases to provide different implementations as per requirementI don't want to perform this functionality in this class. Is there any way in which when I click on this button the method from other class gets executed? may be inheritance,
View 4 RepliesOn Form Closing Event - When The "x" Button Is Clicked A Message Box Will Appear Saying "Are You Sure You Want To Exit?"
Feb 18, 2012I want it so when the "x" button is clicked a message box will appear saying "Are you sure you want to exit?" then if "yes" it closes and if "NO" it stays open. so my code is:
Dim a As Integer
a = MessageBox.Show("Are you sure you want to exit?", _
"Vice Versa 1.0", _
CODE:...................
This should work, no? When i debug my project clicking "no" still exits my program. Is this just because it's in debug mode or am i missing something here?
Also no warnings or errors. Is there a way i can make my game pause when the message box shows? I only have it working to if the users presses "p" on keyboard. But also want game paused when message box shows, without pressing "p"
Serial Port Data Received Event Not Executing?
May 17, 2010I don't know why this is. I am using VB 2008.net and I am trying to receive data on the serial port.
For some reason, the following event is not executing. Here is the
[Code]...
Just simple as of right now for debugging purposes. I have a breakpoint at getMe and it doesn't hit it at all. I know for sure that the serial port should be receiving data as I am using RealTerm to monitor serial port input data before I run my program.
Sql - Validate Datagridview Using The Cellvalidating Event
Jun 5, 2009I have a datagridview that I would like to validate using the cellvalidating event. however as the user doesnt navigate between cells or rows in the datagridview. just enters data in a cell in the datagridview and then clicks a save button the cellvalidating event doesnt get fired.
View 4 RepliesValidate Email Address On An Event In .net?
Jun 12, 2011validate e-mail address on an event in vb.net?
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