Close A Form That Has A Validation Error?

Oct 10, 2011

A wrong entry into a textbox causes the errorprovider to appear (set in the validation event e.cancel=true).Can I close the form (X in the upper right corner)?

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Form Validation Error, Does Not Allow To Close The Form

Jun 8, 2012

I am using the following code

Private Sub txtAIT_Validating(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles txtAIT.Validating
If txtAIT.Text <> "" Then

[Code]....

In form I have a close/Cancel button, and I set Causes Validation = false, and on its Click I used "Me.Close", but form can not be closed.

Button Works fine, but form can not be closed until text field has been validated.

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VS 2005 Cancel Validation Of Txtbox If Form Close Btn(x) Is Pressed

Apr 5, 2010

Is there an way to supress the validating event of textbox when the forms close button(X) is pressed. In the textbox validating event , if the condition fails then i am displaying an messagebox. Now suppose if the textbox has the focus and user directly presses the forms X button , then the messagebox is displayed

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Forms :: Skip Validation Of Active Control When Form's Close Button Is Clicked

Aug 12, 2009

Is 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.

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One Form Information To Be Transferred To Second Form Code Becomes Invalid After Validation Error

Dec 18, 2010

using one form information to be transferred to a second form the code becomes invalid after an validation error has arisen from the first form (ie no adult passengers was selected and the error message was displayed) when corrected the information to be transferred become incorrect as the information is transferred without the correction. [code]

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Error Trapping And Validation Of Fields In A Form?

Jun 8, 2009

Try
If Me.CompanyNameTextBox.Text.Length = 0 Then
MessageBox.Show(

[Code]....

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Turn Validation Off When Pressing X (Close)

Feb 25, 2012

I have a form with numerous textboxes and I use the validating event to validate these items.

If I want to close that form with the X button in the upper right corner of that window validation may not occur. For example a user is filling in data and he inputs something incorrect in a field, but he then quickly wants to close the window by pushing X in the upper right corner. At the moment validation goes off and show a dialogbox that incorrect data is enterred when I press X. How can I turn validation off when pressing X, so that the window closes immediately without validation?

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Error On Me.Close() Event Of Form

Sep 15, 2010

I 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?

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Error When Hiding And Close A Form

May 1, 2012

I have a log in form, and once you log in, it's supposed to show a new form.

The problem here is...if I use Me.Close(), then both of the forms close, and the application terminates.

If I use Me.Hide(), than the first form doesn't actually stop running in the memory, and proceeds to run in the background even after you're done with the program.

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Threading Error On Form Close

Aug 15, 2011

I'm upgrading some code from VB2003 to VB2010. I'm now getting an error when I try to close a form from a media player event.

[Code]...

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Form Close After An Error Occurs During A SaveFileDialog

Oct 13, 2009

I am having an issues with my code causing my forum to close after an error occurs during a SaveFileDialog. My problem is if the form closes after an error occurs that doesn't save the file, the person would lose their text they made. If there a way I can embed the code in an If statement or Try catch so it only closes if the file was saved? Here is my

[Code]...

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Close Form = Cannot Access A Disposed Object Error?

Jul 17, 2010

By default my app loads the activation form. On the form load it checks if the license is valid and if so i want it to close/hide the registration form and open the form that starts my app.

When i try to do this it crashes my app with the following error

Quote:

Cannot access a disposed object

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'check if a valid license is available

[Code]....

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Close The Form Without Entering Any Input And Not Generate An Error?

May 8, 2011

i am using validated function and i would like to close the form without entering any input and not generate an error. is there a method that changes the exit command to allow this?Sometimes the answer is so blindingly obvious i fail to see it.

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Designer Generated Lookup Throws Error On Form Close

Jan 17, 2011

I have a project with multiple forms that are used to edit tables in a project data source (access DB). All the forms work fine, except the ones that use designer generated lookups.

When I am editing a row in a bound DGV on the lookup forms, they function fine, and the save button works fine. However, once I go to close the form it starts throwing "System.ArgumentException: DataGridViewComboBoxCell value is not valid." multiple times.

I've created applications similar to this in VS2008 without any issues.

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Runtime Error 217 Appears When Close The Last Form Of An Own Made Program?

Jul 13, 2009

I've made a project with serveral forms and instances of classes.The program works fine until the last form close.2 messages were shown:1. The exception unknown software exception(0x0eedfade) occured in the application at location (?????????)2. Regular dialogue "Runtime error 217 at (????????)

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VS 2008 : Modal Form Hide Instead Of Close - Main Form Does Not Close

Mar 20, 2009

I 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.

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Error : Private Function Close() As Integer Implements IVsPersistDocData.Close Has Multiple Definitions With Identical Signatures?

May 12, 2010

I have two Close() functions in same class as below:

[Code]...

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[2008] Notify Icon When The User Clicks The Close Button That It Doesn't Close The Form?

Jan 17, 2009

I have set up a notify icon for my form. I want to make it so that when the user clicks the close button that it doesn't close the form it just takes it to shows the notify icon. They can exit the program from the notify icon. Can someone tell me how to keep it running?

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.NET End Vs Form.Close() Vs Application.Exit Cleaner Way To Close One's App?

Feb 12, 2011

sometimes, when I use Form.close() when debugging my program, although the form is closed, the application is still running. I noticed this behaviour when using the msgbox function.

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VS 2008 When Close The Main Form All The Forms Close?

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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Vb2010 Close Of The First Form Close The Application Even If A Second Form?

Feb 14, 2011

I try to transfer a vb6 application to vb2010. In the vb6 I start with a login panel that the user enter uid and password autenticate with the DBServer if ok show application main menu and close the login form. the order of the me.close() after the mainform.show() does not change, The application ends.

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Forms :: When Me.close() Doesn't Close Form

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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How To Close One Form In A Project And Note The Entire Project When Using Me.close() In Visual Studio 2008

Mar 22, 2010

I am really new to Visual Studio and VB and I am having trouble closing a single form:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Me.Close()
End Sub

When I use Me.close() associated with this button it closes the entire project and not just the single form can anyone.

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Error Validation With Structure's?

Feb 23, 2010

I am writing a program using a structure for the first time. The structure has 10 string variables declared inside each equal to a individual textbox on a form. I need the program to be setup so that if one or all of those textboxes are empty at the time of the event being activated a messagebox is displayed telling the user one of their textboxes is blank. Now i could do this in a series of 10 if then statements im sure but using a structure theirs got to be an easier way.

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Properties Validation Error ?

Oct 16, 2009

I have a user control which exposes three properties that the user can change - ValuesStart, ValuesEnd, ValuesIncrement. The default values of these are 0, 100, 10 respectively. These are conditional in that ValueStart needs to be less than ValueEnd, ValueEnd less than ValueStart and ValueIncrement greater than 0. I have put this logic into the property setter and have been testing the functionality of this through the designer and in code but when I do the following I get an error saying that ValuesStart has to be less than ValuesEnd:

CODE:

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String Empty Error Validation

Apr 26, 2011

To make it clear this IS homework, however this is also a method of research. i only ask when i get in binds i can not find answers to in other forums . There are so many i could spend more time[code]...

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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, 2009

get 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]....

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.net - Validation Summary Control ASP.NET Program Output Error?

Aug 3, 2011

I am executing this validation summary program in Visual web developer 2008 express edition, found the validation summary property is not visible in output.

<div><asp:ValidationSummary ID="sum1" runat ="server" ShowMessageBox="false" HeaderText="You details cannot be processed due to following errors:" DisplayMode="BulletList" ShowSummary ="true" Font-Names ="arial" Font-Size ="12"></asp:ValidationSummary>
<asp:CompareValidator ID="cmp1" runat ="server" ControlToValidate ="txtname" Display="Dynamic" Operator="DataTypeCheck"

[code]....

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Asp.net - Custom Validator Not Firing (No Error Message, But No Validation)?

Jan 17, 2011

I have a custom validator:

<asp:CustomValidator ID="QuestionValidator" runat="server" ErrorMessage="Please select an option" ClientValidationFunction="QuestionValidator_ServerValidate" OnServerValidate="QuestionValidator_ServerValidate" ValidateEmptyText="true"></asp:CustomValidator>

I have a list of questions provided by a datalist, which I need to ensure a user selects an answer to each question. I then have my validation functions:

Protected Sub QuestionValidator_ServerValidate(ByVal source As Object, ByVal args As ServerValidateEventArgs)
Dim SelectedItem As Boolean = False
For Each c As Control In Page.Master.FindControl("form1").Controls
If TypeOf c Is RadioButton Then

[code]....

When I run the page, there is no validation and no error message. Please can you point out where I am going wrong, I'm suspicious it is at Page.Master.FindControl("form1").Controls.I have previously done such validation by looping through controls via form1.controls but this is unavailable as the page uses a form passed down via the master page.

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Error - The Remote Certificate Is Invalid According To The Validation Procedure

Nov 2, 2011

I am trying to send an email from a windows form application. I get the following error:

Message="The remote certificate is invalid according to the validation procedure."
Source="System"

I do not care if there is a problem with the remote cert. How do I tell my application disregard and send anyway. Here is my

Public Function SendEmail(ByVal strEmailID As String, ByVal strFrom As String, ByVal strTo As String, ByVal strSubject As String, ByVal strBody As String, ByVal strHTML As String) As Boolean
Dim blnSent As Boolean = False

[code]....

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