Appdomain.unhandled Exception Event Is Not Always Executed
Jan 5, 2011
I have a service application that randomly stops without any errors in my log or in the event application log. I believe that there could be an unhandled exception somewhere in the code so I set up the AppDomain.Unhandled event to catch any exceptions. While trying to induce unhandled exceptions I have found that this event is not always fired. I added the following code to my service's Shared Sub Main method (but I orginally had it in the OnStart method and was seeing mostly the same thing)
Dim currentDomain as AppDomain = AppDomain.CurrentDomain
Add Handler currentDomain.UnhandledException, Address of MyHandler
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Jun 29, 2011
I am facing a problem where i couldnt able to fix it. Could anyone help me on this issue.
[Code]...
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Apr 12, 2012
In my windows application, I want to check which part of code (or routine) has caused un-handled exception event to occur from application events in its running mode (not debugging).
If this is possible then please guide me how to do this.
If any clarification regarding this is required,
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Nov 28, 2009
Any thoughts on what might cause a thread error like this?Error:InvalidOperationException was unhandledCross-thread operation not valid: Control 'Form1' accessed from a thread other than the thread it was created on.
Relavent Code:
Private Sub SerialPort_DataReceived(ByVal sender As System.Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) Handles SerialPort1.DataReceived
[code].....
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Oct 16, 2009
Assume you have the following code:
Instead of doing:
Try
'
[code].....
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Apr 18, 2012
I was scripting a very basic process manager, with a ListView component, and it was working fine for many days, up until now.Here is the code for getting processes:
Dim Process As New Process()
Dim Count As Integer = 0
ListView1.Items.Clear()[code].....
The line of code where I put "*WIN32 EXCEPTION LINE* keeps running into an error(Win32 Exception was unhandled; Access is denied). Here is the full error description:
System.ComponentModel.Win32Exception was unhandled
ErrorCode=-2147467259
Message=Access is denied[code]....
As I said before, this had been working for several days, up until now.
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Jul 9, 2009
I have a problem concerning the Form_Loading event: When I want to load a new Form (ImageDisplay) the ImageDisplay_Load Event is not executed first.
Instead it runs through the global variables definitions and then executes a Private Sub called numericupdown1_changed.
The numericupdown1 field is part of the form I want to load and has not been touched.
That is my calling sequence:
Private Sub Dispalydata_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Dispalydata.Click
Dim myDisplay As New ImageDisplay
[Code]...
The strange thing is that for other forms in my code it works well and starts with the form_load function.
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Sep 15, 2011
I'm fiddling with sessions in asp.net in a http module.The problem:
session("whatever") = "something"
is set on page_load I need an event in the http-module which is executed after page_load, and in which I have access to the session in System.Web.HttpContext.Current.Session I was looking at this HTTPModule Event Execution Order? but I can only get the session in PostAcquireRequestState, which obviously comes before page_load...
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Apr 14, 2009
How do I remove beep sound that comes with "KeyDown" event. When I press enter after I input a employee Id in the text box, there is beep sound. Private Sub TxtEmpName_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TxtEmpName.KeyDown
[Code]...
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Nov 6, 2011
Any sample code that will cause the logic coded in the clicked event of a Button to be executed, in Powerbuilder I would code it as
Button,triggerevent(Clicked!)
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Feb 15, 2012
'Pankaj Pande
'IS 622
'AVL Tree Assignment
[Code]...
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Jun 29, 2011
[code].....
I m getting an error NullReference Exception was handled at this line of code
Dim snmp As New SimpleSnmp
snmp = New SimpleSnmp(host, community)
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Sep 4, 2009
I got an out of memory exception in a photo editor thingy i was making in vb.net. The bitmap image is constantly changing, and I always Dispose() of it after it has been sent off to the other bitmap. Is it being stored in a temp folder and using up all my space on the computer, or what? It always bugs after about 8 bitmaps have been drawn.
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Nov 12, 2011
I keep getting out of range exception when I run my code in vb. It says that
HslSubj = Struktur(PosKt - 1)
is out of range exception unhandled..
But if I delete that I get a new error, which is argument exception. I put my whole code below..
Public Class FrMain
Public KDasar(0 To 9, 0 To 1) As String
Public Imbuh(0 To 4, 0 To 1) As String
Public Struktur(0 To 3) As String
Public DesStruktur(0 To 3) As String
[Code] ......
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Sep 20, 2011
Here iam trying to insert some values to SQLServer 2005 Database.The following error displaying.I changed the corresponding column size,still the error persists.how can i sove this error-:
'String or binary data would be truncated. The statement has been terminated'
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Feb 28, 2012
iam trying to insert some values to SQLServer 2005 Database.The following error displaying.I changed the corresponding column size,still the error persists.how can i sove this error-:
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Jun 25, 2010
I have the following sub where i am reading in a 250mb file of dictionary words in a list, for example
Aardvark
Because
Count
[Code]....
As you can see i am wanting to use linq to remove duplicates, and also because i want to use the union and except statments elsewhere.
The above is fine if the filesize is about 150mb but with 250mb it throws a out of memory unhandled exception, on 'sWriter.Writeline(sline).
I am thinking this would need to be inside the loop, but cant work out how include my linq statement also.
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Jun 4, 2012
I was doing my project and came across an error (The I/O operation has been aborted because of either a thread exit or an application request) regarding this
"Private Sub SerialPort1_DataReceived(ByVal sender As Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) Handles SerialPort1.DataReceived
If closingdown = False Then
received = SerialPort1.ReadTo(vbCr & "R") 'Motion port receiving data. needs a vbCR & "R" is sensor out is an ASCII "R" followed by three characters (which is the distance measured)
End If"
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Oct 3, 2011
I have a desktop application in vb.net 2003. Here when we load the main screen we find an unhandled exception showing out of memory, but we are able to continue working off the form and retrieving data. It works fine, but the image is not getting loaded.In the main screen we have a background image loaded, one of the images is animated
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Mar 7, 2011
I have the following code, which is meant to loop through a list of CheckBoxes and if checked if gets the text contained in the linked textbox through the tag of the Checkbox, i have used it before and it worked fine but this time i am getting the following error:
Null Reference Exception was unhandled
Dim DisCheckBox As CheckBox() = {chk0_6, chk6_12, chk12_18, chk18_24, chk2_3, chk3_4, chk4_5, chkXSB, chkSB, chkMB, chkLB, chkXLB, chkS, chkM, chkL, chkXL, chkXXL, chkXXXL, chkXXXXL, chkW8, chkW10, chkW12, chkW14, chkW16, chkW18, chkW20}
For Each Chk In DisCheckBox
[code]....
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Jun 20, 2011
I am trying to make a program for Product Entry form in Vb.net 2010. However I seem to get a error and I have no clue how to fix this. When I run my application it would popup an error, my code is below which I use in Product entry form.
[Code]...
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Jun 20, 2011
I am trying to make a program for Product Entry form in Vb.net 2010. However I seem to get a error and I have no clue how to fix this. When I run my application it would popup an error, my code is below which I use in Product entry form.
Imports System.Data.OleDb
Public Class frmProductForm
Dim conn As New OleDbConnection[code].....
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Jan 20, 2011
An unhandled exception has occurred in your application??
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Oct 1, 2009
I have installed VB6 and Visual studio 2005. when i am opening the VB6 files getting this error.
Visual Studio Just in time debugger
An unhandled win32 exception occurred in VB6.EXE
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Feb 28, 2012
I've been using it for three days, and tried to make my own application. Everything was going okay, it ran fine in the debugger and everything worked, so I assumed there would be no problems. But then when I went to run it from the exe in the folder, it shows me this:
Quote:
System.Threading.ThreadStateException: Current thread must be set to single thread apartment (STA) mode before OLE calls can be made. Ensure that your Main function has STAThreadAttribute marked on it.
at System.Windows.Forms.WebBrowserBase.OnHandleCreated(EventArgs e)
[CODE]............
I copied what I think to be the most important part of it. I've been searching around, and it says to do something with the main method, but I have no idea what that means.
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Jul 31, 2009
I want to display daily attendence report of employees. But I keep getting this error in this line( DataGridView1.Rows(z - 1).Cells("WORK").Value = CInt(HOURSWORKED / 60) ) as Argument Out Of Range Exception. Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index.
Private Sub CALCULATELOGINOITS() Dim HALFDAY1 As Integer = 0 Dim HALFDAY2 As Integer = 0 Dim NOOFLOGS As Integer = 0 Dim j As Integer = 0 Dim dh As Integer = 0 Dim dsp As DataSet = DataLayer.ExecuateDataSet("select * from TIMEATENDENCEVIEW1 where eid=" & cmbemployee.SelectedValue & " order by ord
[code]....
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Mar 19, 2009
I have purchased Microsoft Visual Studio 2010 Premium with MSDN.I have started to work on an application using .NET Framework 3.5. Everytime when an error occured the application stoped to run and marking the point when the error ocured. After some month this thing is not happening anymore. Instead of that the application
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Nov 28, 2011
nullrefererence exception was unhandled. I'm getting this error. could someone pls help
here is my code
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
WebBrowser1.Document.GetElementById("Email").SetAt tribute("value", TextBox1.Text)
WebBrowser1.Document.GetElementById("Password").Se tAttribute("value", TextBox1.Text)
WebBrowser1.Document.GetElementById("Signin").Invo keMember("Click")
End Sub
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Apr 9, 2010
I have some code that uses the Windows Media Player Library capabilities to get around using ID3 tags. I keep getting this error however, whenever I add 1000+ songs to the datagridview:
For Each File_FullPath As String In My.Computer.FileSystem.GetFiles(My.Settings.Path, FileIO.SearchOption.SearchAllSubDirectories, "*.mp3", "*.m4a")
Dim WMP As New WindowsMediaPlayer
WMP.URL = File_FullPath
[code]....
Here is the code I'm using that gets the error:The problem is I need a way to clear the WMP.mediaCollection, but I don't know how.
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Oct 19, 2011
I am inheriting my class from a form that has a handler for FormClosing (it's overridable so I can override it and do MsgBox("Ha") there before calling the base method). In my Shared Sub New() I have:
' Add the event handler for handling UI thread exceptions to the event.
AddHandler Application.ThreadException, AddressOf Application_ThreadException
' Add the event handler for handling non-UI thread exceptions to the event.
AddHandler AppDomain.CurrentDomain.UnhandledException, AddressOf CurrentDomain_UnhandledException
'For Console applications you should use the System.AppDomain.UnhandledException event
AddHandler Thread.GetDomain().UnhandledException, AddressOf CurrentDomain_UnhandledException
If I throw an exception in my form outside of a try/catch I am noticing two different behaviors: If I am using the VS debugger I get an unhandled exception and it seems that my unhandled exception handler is called. The formClosing event handler does not seem to be called. If I am NOT using the VS debugger then the FormClosing Handler is being called but the Unhandled Exception handler isn't called. Ideally I would like (in both cases) to have the Unhandled Exception to be called and then the FormClosing event handler to be called.
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