Error Message: Exception Has Been Thrown By The Target Of An Invocation

Oct 1, 2009

It errors often (not in a system damaging way) but enough that it bothers me.

Code

Public Shared Sub Fire(ByVal thisEvent As [Delegate], _
ByVal ParamArray args() As Object)

[code]....

Common Error

User Message: Async event fire error.
Error Type: System.Reflection.TargetInvocationException
Error Message: Exception has been thrown by the target of an invocation.

[code]....

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Exception Has Been Thrown By Target Of An Invocation.

Jan 15, 2012

I'm working on an application that contains a "BackgroundWorker", the "BackgroundWorker" worked fine but after I started to change some stuff it gives me an error ("Exception has been thrown by the target of an invocation.")... I used a breakpoint to see where it happens, the exception gets thrown at the "End Sub" line of the BackgroundWorker.I then deleted all the code inside of it and ran it again.I still get the error.

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Exception Has Been Thrown By Target Of Invocation

Feb 27, 2009

What is the meaning of this error message?
"Exception has been thrown by the target of an invocation"

Instead of words, here is my code's logic :
while loop
run BGworker01
run BGworker02
...
run BGworker09
application.doEvents
thread.sleep(10)
end while

All the bgWorkers do the same thing (sending some data, only to different locations). When I run this loop with only 1 Background-Worker, it's all fine, but when I add the other bgWorkers i get the mentioned error at the "application.doEvents" part of the loop. I think it also points to another place (highlighted in green) inside one of the bgworker's code :
Dim FileStreamToSend As FileStream = New FileStream(fileToSend, FileMode.Open)
I thought it might be a problem that all bgWorkers are trying to read from the same file together, but when I tried using different file for each bgWorker, the problem persisted.

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Exception Has Been Thrown By The Target Of An Invocation

May 28, 2010

I want to use mozilla control in my application.. But when i use Webbrowsercontrol i just use

webbrowser.navigate("http://www.google.com")

but this commant is not working with mozilla control ant when we try to navigate to any web address it gives following exception.

Exception has been thrown by the target of an invocation.

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Exception Has Been Thrown By The Target Of An Invocation?

Jan 21, 2011

I know this is a relatively common error but I am working in an application that allows custom reports to be written using vb.net or C# for scripting. Error handling is very poor and I am not knowledgable enough to add my own (if it is even possible).

My code simply retrieves a value that is stored in a textbox on the report formatted as LastName, FirstName and truncates all characters after the comma. This value LastName is placed in a new textbox on the report. Here is my code:

Sub Detail1_Format
Dim lastNameFirstName As String = ""
Dim lastName As String = ""

[Code]....

The error happens when I use lastNameCommaIndex to set the number of characters in my substring. If I replace it with a number the report is published properly.

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Backgroundworker Exception Thrown By The Target Of An Invocation?

Jun 21, 2010

Currently I m working in backgroundworker .but suddenly it begins to throw an exception

Exception has been thrown by the target of an invocation. source:mscorlib

stack trace :at System.RuntimeMethodHandle._InvokeMethodFas

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WinForms : Exception Has Been Thrown By The Target Of An Invocation?

May 21, 2010

I have a winform where I have some controls like TabPane, Label, ....When I launch my application without localization, it works fine. When I put localizable parameter True, I have this error :

TargetInvocationException was unhandled

Exception has been thrown by the target of an invocation.And when I debug my application, I follow the execution, program begins executing InitiliazeComponent(). I press F11 to continue the debug, program executes the TabIndex event of my TabPane and on the first instruction it crashes.My environment is VS2008, Framework 3.5. I store my project on a network hardisk (I test on local and it doesn't work too)

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.Net 2.0 Run Time Error "Exception Has Been Thrown By The Target Of An Invocation"

Nov 24, 2009

I have a vb6 app, the error from event view is Faulting application vb6.exe, version 6.0.81.76, stamp 3592011f, faulting module vba6.dll, version 6.0.0.8169, stamp 358b0c74, debug? 0, fault address 0x0001982e. For more information, see Help and Support Center at [URL] And a message box pop out. Exception has been thrown by the target of an invocation. The code is

[Code]...

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"Exception Has Been Thrown By The Target Of An Invocation"?

Feb 27, 2009

"Exception has been thrown by the target of an invocation"Instead of words, here is my code's logic :

while loop
run BGworker01
run BGworker02
run BGworker09
application.doEvents
thread.sleep(10)
end while

[Code]...

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Delay - Receive A Target Invocation Exception Error

Jan 13, 2009

I am creating a programming that is sending info for one pc to another over RF. The desktop show create a xml file. It writes some of the info but not all. I receive a Target Invocation Exception Error. I realize I need to slow down the incoming Data. I want to use a timer to slow it down.

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Debugging Exception On Invocation Target Instead Of Invocation Caller?

Jan 28, 2010

When a delegate method throws an unhandled exception, that exception is usually trapped at the level of invocation (eg. Delegate.Invoke()) - you get a System.Reflection.TargetInvocationException...

However, when debugging classes utilizing a lot of threading/invoation, it would be helpful to be able trap the exception in the target method i.e. the faulty code, and since Microsofts BackgroundWorker (exceptions thrown in DoWork()) is able to do it, why can't I???

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C# - VS - Have To Open With "Run As.." Every Time - "Exception Has Been Thrown By The Target Of An Invocation"

Mar 21, 2011

When I click the VS 2010 icon to open it I get a popup box error "Exception has been thrown by the target of an invocation". I then need to right click the icon, click "Run as.." change "Current user" to "The Following user" then enter in my windows credentials and it opens fine. This is happening suddenly (Windows XP) and I don't know why. It wasn't happening before and I haven't started logging in with a different user or anything.

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Error " Exception Has Been Thrown By The Target Of An Invocatio

Aug 22, 2009

what is this error " Exception has been thrown by the target of an invocation."the code is :

Private Sub Button10_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button10.Click Button10.Enabled = False
Label19.Text = "Checking for updates .... "
WebClient1.DownloadFileAsync(New Uri("http://www.fileden.com/files/2009/8/20/2549735/virson1.txt"), "virson1.txt")
End Sub

[Code]...

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Thrown Custom Exception Is Immediately Caught In The Same Catch Block It Is Thrown From?

May 13, 2012

This may be a debugger issue, but here goes:I have this piece of code:

Private Function Connect() As Boolean
Try
sessionBegun = False[code].....

My intention is to 'convert' the low level exception into something more meaningful, so I throw an exception of my own creation. I want this to bubble up to a place where I can handle it.However what is happening is my debugger breaks and tells me that an exception of type "QuickBooksConnectionException" was thrown.I know that, I just threw it, why are you catching it? From what I've read, this ought to work, and there doesn't appear to be an analogous Java throws keyword, so perhaps it is my debugger.

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Error 'Exception Of Type 'System.OutOfMemoryException' Was Thrown'

Feb 22, 2011

I'm prompted with this error 'Exception of type 'System.OutOfMemoryException' was thrown' it was thrown when filling a dataset with 400,000+ records. And I think obviously is about memory matter because of the number of records to be transfer.My program goes this way.. after filling a dataset from a table it will transfer all data into another table. Now my question is, Is it possible in vb.net that while filling a dataset it transfers the record immediately into another table? Please give me an idea on how to do this.

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VS 2008 Error: Exception Of Type 'System.ExecutionEngineException' Was Thrown

Feb 25, 2010

I just tried to run a project of mine that has a wpf control in it and i get the error:Exception of type 'System.ExecutionEngineException' was thrown.The error automatically closes after about 3 seconds When I create a new WPF project visual studio closes down - no error messages, also just closes with no errors if I create a form application and add a WPF control to it. Also compiled applications just bring up the "xxx has stoped working" error - even apps that are not mine such as Microsoft Pivot that use WPF?

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[RESOLVED] Error - Exception Of Type 'System.OutOfMemoryException' Was Thrown?

Nov 4, 2009

my application occurs an error "Exception of type 'System.OutOfMemoryException' was thrown." when trying to import xlsx file to sql server.

[Code]...

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Make The Custom Exception Thrown In BackGroundWorker DoWork Event The Error In RunWorkerCompletedEventArgs?

Oct 6, 2010

Let's say a custom exception is thrown in the DoWork event for a backgroundworker. How do I pass the custom exception to the backgroundworker so that it ends up being the e.Error in the RunWorkedCompletedEventArgs?

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VB Parallel Port Control (inpout32) SEHException Was Unhandled: Xternal Component Has Thrown An Exception Error

May 14, 2011

here is my code

Public
Class
Form1

[code].....

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Error Message : :No Connection Could Be Made Because The Target Machine Actively Refused ?

Jul 14, 2009

[ERROR]
System.Net.Sockets.SocketException:No connection could be made because the target machine actively refused it 192.168.0.59:500 at system.Net.Sockets.TCPClient.Connect(String hostname, Int32 port) at WinClient.Form1.btnSignIn_Click(Object sender, EventArgs e)
[/ERROR]

Though I dont believe the issue is with the code here it is:[code]......

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IDE :: "Exception Of Type 'System.OutofMemoryEception' Was Thrown" Error?

Oct 14, 2011

My project include 350 forms, 780 thousand lines of code (350 thousand designer code).But when i want to design form, every two or three design VS gives "Exception of type 'System.OutofMemoryEception' was thrown" error. I am restart the project and this error gone until rebuild or open a few form... I couldn' work over 5 minutes...

I am looking at memory usage : devenv.exe using 500/600 mb and my sistem using 1.9 GB ram of 4GB ram .I don't think so but is VS crash or not support 350 forms in project? Is there any solution about VS memory options?

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Error "Exception Of Type 'System.OutOfMemoryException' Was Thrown." When Try To Read 100MB File

May 4, 2012

i want to ask about read file and then convert to binary i am using this code

Function readd(ByVal path As String, Optional ByVal Separator As String = " ")
' Store the line in this String.
Dim line As String

[code].....

it works fine to read small file, example 2MB file, etc but it get error "Exception of type 'System.OutOfMemoryException' was thrown." when try to read 100MB file i think the error code because the file is too big

For Each Character As Byte In ASCIIEncoding.ASCII.GetBytes(line)
oReturn.Append(Convert.ToString(Character, 2).PadLeft(8, "0"))
oReturn.Append(Separator)
Next

how can i read 100MB or bigger file?or maybe is it another method / code to read a file and convert it into binary?

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VS 2005 Invocation Exception Using AutoResetEvent?

May 16, 2009

I am using a background worker to process some login information. However, the background worker has to stop and wait for 2 events to happen. Once these have finished the background worker can complete its job. They are callback that will call the Set() method of the AutoResetEvent.

So I am using AutoResetEvent to set when these 2 events have finished. However, I seemed to be getting this error message

"Exception has been thrown by the target of an invocation." and Inner exception

"Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index". The exception usually fires when the registration success leaves scope.

The code for the background worker.

' Waiting for 'Account in use' and 'Register success or failure'
Private loginWaitEvents() As AutoResetEvent = { New AutoResetEvent(False), New AutoResetEvent(False) }

[Code].....

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VS 2010 Error Message : Argument Out Of Range Exception Unhandled

Jun 23, 2011

Working with an If statement I have tried the following

If -0.6 > (LLum_Gline(8).X - LLum_Gline(12).X) > 0.6 Then
patient_frm.llum_gline = 2
MsgBox("Measurement is Abnormal")
End If

I am getting an error message that says Argument out of range exception unhandled. I have double checked and verified that LLum_Gline(8).X and LLum_Gline(12).X are in fact valid.Is my problem simply in how i am phrasing the If statement. Is there a way for me to phrase what im doing without writing multiple if statements?

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My Exception Not Thrown

Feb 26, 2009

The Exception is not thrown in the following code in Visual Basic 2005, if sqlserver 2005 is down.[code]...

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With Calling Dll - Created In C++ - Error Message - An Unhandled Exception Of Type 'System

Jan 28, 2010

I have problem in calling DLL file in VB.Net that I had Created it in C++... it give me this error message: "An unhandled exception of type 'System.EntryPointNotFoundException' occurred in test_dll_1.exe. Additional information: Unable to find an entry point named 'add_1' in DLL 't1.dll'."

This is my code in C++ (header file)

[CODE]............

The one in the main

#include "header_1.h"

double add_1(double a, double b){
return (a+b);

[CODE].....................

This code only for creating dll and I did created it correctly and i had tested it in c++ and it did works.... but in the Vb.net I had no luck with it...This is the code that I wrote it in the VB.net

Imports System.Runtime.InteropServices

Public Class Form1

<DllImport("t1.dll")> Public Shared Function add_1(ByVal a1 As Double, ByVal a2 As Double) As Double

End Function

[CODE].....................

And, I did put the .dll file in the bin folder, but also with no luck...

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Retrieve Query From Exception Thrown

Aug 5, 2010

I have a log table where i need to insert the query which causes errors in the code. I have a common function "WritetoLog".[code]My Question is from the ex how do i take the query which causes error. eg. If the insert command is giving exception i should get like this SQL Query causes error : Query + ex.Message..SQL Query causes error : Insert into temp("1",'Anitha','TeamLeader',) + Incorrect syntax near ')'

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.net - Check If A Program Has Thrown An Exception?

Mar 22, 2012

I'm working on a status monitoring program for my company and we need to be able to know if a process on a remote machine is hanging due to not responding (that I can do) or if it's thrown an unhandled exception. I've tried a number of things from checking the CPU usage of the process to checking if the process has gone idle. Nothing has really been reliable. Is there anyway to do this? All the programs we'll be monitoring are running on either .NET 3.5 or 4.0.

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Exception Thrown Whilst Loading A Xml Doc

Aug 15, 2011

I am writing a program that saves quotes for writers to an xml file. Well I save my data to the xml file, but when I go to load the document I get this exception thrown at runtime.

System.Xml.Xsl.XslLoadException was unhandled
LineNumber=2
LinePosition=1

[Code].....

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Handling An Exception Thrown From Inside A Dll

May 17, 2012

I'm working on a project for school in which a dll is loaded.

The dll that is loaded is a bridge between my program and the Twincat System Manager which forms the bridge between the computer and a PLC via the local network.

I need to read Variables trough this whole chain from the plc to my program.

This is the way I do this:

Public Function adsReadReal(ByVal Variabelenaam As String) As Single
Dim ds = New TwinCAT.Ads.AdsStream(4 * 8) ' new data stream
Dim br = New System.IO.BinaryReader(ds) 'new binary

[Code]....

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