In a vb.net windows application, I need user to confirm before closing application. I have this code in FormClosing event
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How can I cancel form closing if user clicked No?
Tried e.Cancel = false but it didn't work (exits application).
What function would i use to cancel the form from being closed via them pushing the "x" in the top right?Basically want it to hide the form, set showintaskbar to falseand then display the notifyicon. Which all I know how to do, but cant quite seem to figure out how to stop the form from being closed.
View 2 RepliesI validate a DataGridView with the CellValidating-eventhandler.That works fine. However, I want to avoid validating when the user presses the Cancel button. In the sequence validation occurs before the event CancelButton.Clicked.
View 1 RepliesWhen the end user cancel the FileCopy, i want him to see a message and then i want the form to close. Is this possible?
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My program prompts the user to save info upon exit. If Yes is clicked > Program closes. If Cancel is clicked > Program stays open.
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The above works fine, also this works fine (In the sense that if Yes or Cancel is clicked the program wont close):
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How can I prevent the program from closing while using a NotifyIcon in this way?
I have a very generic login form created that allows a user to access a application. My problem is getting the log in form to close after the application form is loaded. I have described the specifics in the comments of the code. [code]
View 1 RepliesIve got a datagridview, which the user can put in to 'edit' mode by double clicking. If they then make changes but click to another row, I want to msg asking if they are sure they want to discard then changes. If they say No I want to stop the selection change from being made.
Private Sub DataGridView1_SelectionChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DataGridView1.SelectionChanged
If edit = True Then
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I have a VB.NET 2010 Forms Application which includes a form with a textbox, and two buttons which I call from the main form using .ShowDialog
I've messed with something such that I can no longer prevent the dialog from closing when the user clicks the Ok button but has entered invalid information.
Here is the handler for the OK button's click event:
Private Sub cmdOK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdOK.Click
If SomethingIsWrongWithWhatTheUserEntered Then
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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 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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I am trying have a data grid selection populate a form. I am new to this.Basically I have a connection persistance object and I would like to call that and call a stored procedure with the value of the selection. The datagrid is bound to an object.
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If Not IsNumeric(textbox1.Text) Then
KeyAscii = 0
End If
I learned in MSDN and wrote those code,but it doesn't work. This code " KeyAscii = 0" it's not correct, I just want to cancel the input, for instance,if user input 1a, then "a" will be not inputted into textbox, but "1" will leave.
I'm currently developing an AutoCAD 2008 Addin in Visual Basic (.Net 3.0, VisualStudio 2010).I'm able to define my own command and I want the user to be able to cancel my command by hitting the ESC key.In AutoCAD 2010 or higher there exists the
HostApplicationServices.Current.UserBreak
method. But not in ACAD 2008. how the user may be able to cancel my command?
I have created my own version of word pad. When I click save on the file drop down, the save dialog box pops up, but if I click cancel then my program crashes. I am not sure what I need to do so that if I hit cancel, it will just return to my program.[code]
View 2 RepliesI have a coding to let user select 2 files to import:
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But if user click cancel button at Browse2 button, the system will paste the value from Browse 1 to Browse 2 text box. How to do nothing if user click cancel button at OpenFileDialog?
I have a coding to let user select 2 files to import:
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Private Sub btn_Browse_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdBrowse1.Click
On Error Resume Next
OpenFileDialog1.Filter = "Lis files|*.lis"
OpenFileDialog1.FilterIndex = 1
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But if user click cancel button at Browse2 button, the system will paste the value from Browse 1 to Browse 2 text box.How to do nothing if user click cancel button at OpenFileDialog?
Is there a way to repeat two popup input boxes (in succession) until the user presses cancel?
Dim hours As Integer
Dim letterGrade As String
Do
hours = InputBox("Total credit hours", "Total credit hours", )
letterGrade = InputBox("Letter Grade", "Letter Grade", )
Loop
The input boxes continue to repeat but when I hit cancel nothing happens... I'm sure I'm missing something to tell it when I cancel to go back to the MainForm I just don't know what it is.....
Is there any direct way to stop a threadpool when user press Cancel Task button? I got SmartThreadPool but using that i could not arrange my code. Its becoming difficult.
Here is my simple code:
'Delegaet to update UI
Public Delegate Sub updateClassDelegate(ByVal index As Integer, ByVal status As String)
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I have a VB application and I want to allow the user to choose an option between "OK" and "Cancel" buttons when he want to exit the VB application. So far, I cannot figure how to allow the user to click "Cancel" to allow the VB application to continue running. [code] So how do I allow user to click "cancel" button to prevent from exiting?
View 3 RepliesI have an inputbox with ok cancel buttons in my class.The user should fill in numbers in the inputbox and if nothing is entered and the user presses cancel or ok, the user get's a msgbox that he should enter something and after this the inputbox should show up again until something has entered.
I now have the following code:
Dim answer As String
Dim amount As Integer
Dim result As DialogResult
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I have an application that when ran I can not seem to be able to move the form. When I try to select the cancel (x) button on the form nothing happens. I am lost as to why I am unable to select the form and move it or close the form.
View 1 RepliesI am writing an application that needs to be running all the time and I don't want the user to be able to close it. I don't want to hide the process from Task Manager. All I need is that when the user tries to terminate the process, he has to enter a password.
View 9 RepliesI am trying 2 create a messagebox that pops up when you try and exit the rich text box editor, using the exit button on the toolbar.I want it to check wether the editor has been modified and if so ask the user if they want to save changes before closing. With the the save file dialog.And if the user clicks No i want the program 2 exit.
here is my code
If Editor.Modified Then
Dim reply As MsgBoxResult
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<!-- [if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:TrackMoves>false</w:TrackMoves> <w:TrackFormatting/> <w:PunctuationKerning/> <w:ValidateAgainstSchemas/>
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What I need is a code that can read from database (*.accdb). Form example if I select LG from Form4, it should read from a table from the database the price of
the LG, then we press "save", then should return to the Main Menu, then we select, for example, Scanners from the Main Menu that will take us to Form5. There we select, for example 24", that should take the price again from the data base and
add it, after save, to our first LG price, and return back to the Main Menu, and so on. The total price should appear in a new form, form7, after clicking (Total Price).
How I can cancel a specific form by clicking (Cancel) and how to exit.
That is all. How can I write such code?
How do i create a cancel button for a form where i have a detail layout of my databse. if i have inserted data and the want to cancel everything i have inserted or reset my form to it open state.
View 3 Replieshow to enable the cancel button of the form?
View 2 RepliesThis program allows a user to select a workshop and a destination, only one selection should be made. When I test I find I can add multiple of the same.
Private Sub ListBox1_Validated(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.Validated
If ListBox1.SelectedIndex = -1 Then
Beep()
MessageBox.Show("Select a workshop please.")
End If
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I have a combo box that has multiple options, when the user selects one of the options (world wide city destinations) a specific value is assigned to a variable. For example if "New York" is selected the variable "x" is assigned the number 155. What I want to do is output the destination that has been selected ie "New York" in a label called "lblOutput1", do I need to store the destination as a seperate variable to be able to produce it in this label as I cannot seem to get it to work:
At the moment I am using:
lblOutput1.Text = "bla bla bla " + cmbDestination.SelectedText + " bla bla bla " + Today()
I am using visual studio vb 2005 and I searched the forums for an answer to this but didn't find exactly what I was looking for. I am using the following code to populate a list box. What I want is to have a datagrid view show the results of a dataset that is generated when a user selects something from the list box. I know how to generate the dataset, but I'm not sure how to bind that to a datagrid view and I'm not sure what event I should use from the list box.[code]
View 6 Replieswhat's the best way to stop a form from displaying in its Load event.I initialise a form using the following code:
Dim MyForm as new MyCustomForm
In the Load event of MyCustomForm, I ask the user to select a folder and use that to populate a listbox on the form.folder.If the user presses Cancel instead of selecting a folder, I don't want to display the form. Right now, I just call Me.Close in the Load event, but that still causes the form to briefly appear and disappear in the background. Also do I need to call Me.Dispose?