InvalidOperationException Was Caught?
Aug 25, 2010
When I start to save only one record from collection, no error was found, but when I start to save more than 2 records in database table then it can save only the first record and it can not continue to save the second record.The exception was that:
InvalidOperationException was caught ExecuteScalar requires the command to have a transaction when the connection assigned to the command is in a pending local transaction. The Transaction property of the command has not been initialized.
[Code]...
View 8 Replies
ADVERTISEMENT
Sep 12, 2011
What is the list of exceptions that CAN'T be caught in .NET? Or where can I find such a list?
View 6 Replies
Jan 27, 2011
I'm trying to loop through and insert data into an excel template i have created. It works the first time, always the first time and never again after. All the values are correct and should work, I dont understand why it wont. Here is my code, there is an '>' beside the line that throws an error.
[Code]...
View 1 Replies
Dec 17, 2011
I am converting an existing classic ASP website to (VB) MVC and I don't want any of the existing URLs to break. I have read many posts (like this one: Routing Classic ASP Requests To .NET - SEO Redirects) about how to do the proper 301 redirect. With the latest MVC release, I've gathered that
Response.RedirectPermanent(objRedirect.new_url, True)is all that is needed.
I have entered all of my old URLs in a database table with a corresponding column of the new URL. I have added code in my custom 404 page to get the original URL:
Dim strURL As String = Request.RawUrl.Substring(Request.RawUrl.IndexOf("aspxerrorpath=") + 15).ToLower()
so I can look it up in the database. (Interesting sidenote, MSDN's documentation here - Redirect Mode - seems to say that if I set RedirectMode=ResponseRewrite in the CustomErrors section of my web.config, I won't have to worry about doing the above, but when I've tried that, I get IIS errors saying it won't serve an ASP page?The problem I am encountering is that any of my old, Classic ASP URLs that have the same directory as a new MVC route are somehow being partially routed. For example, "/test/default.asp" shows up as "/test/test" in the above strURL variable of my error page.
[Code]...
View 2 Replies
Feb 21, 2012
Is it possible to catch the combined key presses of Ctrl-Alt-Delete so that event can be handled?
View 9 Replies
Jan 31, 2012
For some reason the exception is caught sometimes it's not?Here is the code:
[code]...
View 21 Replies
Feb 3, 2011
I've tried to Google this problem, but haven't found any relevant results.I am trying to handle HTTP 500 errors when logging into a web service (the web service returns 500 when login is incorrect). An WebException is thrown, but I can't seem to catch it properly. The exception is highlighted in green instead of the normal yellow (having trouble finding info on this as well)
[Code]...
View 6 Replies
Oct 4, 2010
I have a form that is used at design-time to configure various properties. I've tried two ways to do a form-level catch all exception:
(1) I add a handler to Application.ThreadException in the constructor.
(2) I wrap the Show method, of the form, in a Try/Catch block
Both of these work at run-time when I test by adding a property grid to a form and set my component as the SelectedObject. However, at design-time the form simply closes with no message whatsoever; neither my message nor any message explaining that there is an unhandled exception. This is not about debugging at design-time. It's about how to present the user with a friendly message when my type editor encounters an unhandled exception.
View 1 Replies
Aug 18, 2011
I generate emails from my website to deliver order notifications to my customers.Some of these emails are treated as spam by spam filters. I've used MailingCheck to examine the emails and one of the problems contributing to it being identified as spam is:PRIORITY_NO-NAME Message has priority but no user agent nameIs there anyway within asp.net that I can resolve this problem? Presumably by somehow setting th
View 3 Replies
Jan 6, 2011
I am trying to read from a .dbf file in vb.net.This is my code.I am getting the following error.
OleDbException was caught: External table is not in the expected format.
Error in Detail:
System.Data.OleDb.OleDbException: External table is not in the expected format.
at System.Data.OleDb.OleDbCommand.ExecuteCommandTextErrorHandling(OleDbHResult hr)
at System.Data.OleDb.OleDbCommand.ExecuteCommandTextForSingleResult(tagDBPARAMS dbParams, Object& executeResult)
[code]....
View 7 Replies
Jun 3, 2010
I am currently trying to send Email but am stuck with the GeneralFailure error caught with try and catch. I got the sample code somewhere off the internet last week and modified it when I have the chance.
The following is the code I am working on for now.
Private Sub btnSend_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSend.Click
Dim message As System.Net.Mail.MailMessage
Dim mailClient As New System.Net.Mail.SmtpClient("smtp.live.com", 25)
[CODE]...
Is there anything unnecessary, missing or am I on the wrong track? Right now I am trying to test send a mail from hotmail to gmail or another live account. Also, I have tried searching through the internet for a solution and some said I need to have IIS which I had it installed for it to work. Another said I need to add a reference but did not specify it. Those were pretty old messages though.
View 6 Replies
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.
View 3 Replies
Aug 1, 2011
It's been one of those days at a programmer. Nothing going right. I am not that experienced with Visual Basic 2010 Express, but I have a random problem that appeared out of no where.This is the error I get:
HTML
Imports System.Text.RegularExpressions
Imports System.Net
[code].....
View 3 Replies
Oct 23, 2009
All of a sudden, when I built my project, it wouldn't read any changes, then all of a sudden, this error started popping up!The description of the error is:An error occurred creating the form. See Exception.InnerException for details. The error is: Object reference not set to an instance of an object.and it pops up when the following code is executed:
frmMain.Show()
on the line prior to it I have the code
frmStats.Show()
and that pops up no problem.These errors happened suddenly, and all I was changing in the code (which was in frmMain) were just a few changes to labels (activated by an event).
View 4 Replies
Mar 2, 2011
I get the following expeption when trying to switch from one form to another (click event):
InvalidOperationException was unhandled
An error occurred creating the form. See Exception.InnerException for details. The error is: Could not find any resources appropriate for the specified culture or the neutral culture. Make sure "WindowsApplication1.CarDimensions.resources" was correctly embedded or linked into assembly "Driver Seat Configuration" at compile time, or that all the satellite assemblies required are loadable and fully signed.
How can i embed one form correctly into the another?
View 7 Replies
Feb 27, 2012
I am getting this error trying to open a project made in vs 2008 in vs 2010 A first chance exception of type 'System.InvalidOperationException' occurred in blah.exe The entire error looks like this
An error occurred creating the form. See Exception.InnerException for details. The error is: Could not load file or assembly 'System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.
View 6 Replies
Oct 18, 2011
this is the error I started getting only when I added a splashscreen to my application. Please note that I haven't added any code there - on the contrary - I removed everything from the Splash class. The issue seems not to occur when debugging - I got it from my Virtual machine - what makes the problem a bit more complicated as I have no idea which line may cause it. The problem shows up between splash_screen_dispose and main_show (when I click continue all is ok).
The details of my err. message:See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.InvalidOperationException: Collection was modified; enumeration operation may not execute.
at System.Windows.Forms.Control.MarshaledInvoke(Control caller, Delegate method, Object[] args, Boolean synchronous)
at System.Windows.Forms.Control.Invoke(Delegate method, Object[] args)
[code]....
View 5 Replies
Jul 21, 2010
i am in project of medical billing.i am on LogIn form in vb.but i have Erro - "InvalidOperationException was unhandle " and while i was run program it didn't say which line i had error.
here is my code.
Imports System.Data.OleDb
Public Class login
Inherits System.Windows.Forms.Form
[code].....
View 1 Replies
Dec 14, 2010
I am in another Great problem, When I am running on my own machine then there is no problem creating but when I am running my project another machine then the project generating problem which caused not to open any form on running mode/compile mode. what problem is creating I attached with note file?
View 1 Replies
Apr 27, 2011
i am getting Error system.invalidoperationexception?
View 3 Replies
Sep 13, 2011
When I try to run my VB.net 2010 project I get the error.
"System.InvalidOperationException occured in PCDoctor.exe
Additional Inormation: An error occured creating the form. See Exception.InnerException for details. The error is: Conversion from string "" to type Double is not valid.I even tried placing break points in the startup form but this error happens before any of the startup form code is excecuted. The project was working fine before I added code to a form. I even removed this new code and tried to run the project. but still doesn't work.
View 4 Replies
Sep 14, 2011
I know its generally a big No-No to modify a collection that you are iterating through but unfortunately i didn't design the code that i'm trying to modify. All over the place the following is done:
for each log in Logs
logs.Delete(log.LogId)
Next
Delete pretty much just deletes the log from the database and removes it from the collection. Previously the Logs object was using a Non-Generic collection. I changed it to use a Collection(Of Log) so i can LINQify the object. Now every time i call next/.MoveNext is called after the first delete the following error happens:
InvalidOperationException:"Collection was modified; enumeration operation may not execute."
I understand why i'm getting the error but i don't understand why it never happened with the Non-Generic version. Is there anyway to get around this error? There really is no way i can take the time to change every place where the delete logs like this (codebase is large). Id like to just remove the code in the Delete function where it removes it from the current collection because i'm assuming no code does anything with the collection after its done but you know what happens when you assume.
View 3 Replies
Jan 20, 2012
I have a loop that will determine if a certain value is within the specification limits that I assign. The problem is, when the loop starts, I get the following exception:system.InvalidOperationException was unhandled Message=Cell provided already belongs to a grid. This operation is not valid.
I'm not sure exactly why I am getting this exception...OF COURSE the cell is already part of a grid! I just want to color it! Anyway, here is the code I am using:
Private Sub ColorAllCells()
For row As Integer = 0 to dgvCurSetLanes.Rows.Count - 1
[code]....
The exception occurs as soon as I call ColorAllCells
View 6 Replies
Sep 5, 2010
I defined a picture column as Image type. Created the Datasource and placed an Image control on a form. When I input the picture of a client in the input form every thing works fine but when I Open a second form (the search form) and try to search for a client with picture I get the following message:Inconvertible type mismatch between SourceColumn 'Picture' of Byte[] and the DataColumn 'Picture' of String
View 2 Replies
Nov 12, 2009
I have designed a application in VB.net using the MS Office spreadsheet component.When launching the app on the client PC it gives a 'Windows has encountered a problem and needs to close' error, when clicked on Debug the error says 'An Unhandled exception occured ('System.InvalidOperationException') in 'ApplicationName.exe'.The client PC runs WinXP SP3 with .NET framework 3.5 with SP1 and Office Web Components, also has Office 2007 installed.When I remove the spreadsheet componenet from the app and redeploy the app to the client it works fine!
View 3 Replies
Sep 6, 2008
Code:
System.InvalidOperationException was unhandled
Message="An error occurred creating the form. See Exception.InnerException for details. The
[code].....
View 1 Replies
Aug 13, 2011
I've only build simple applications that calculates something, like nuclear half life or ice cream prices, by using some values entered into text boxes by the user.
At the moment I'm trying to build a simple edition of Notepad because I want to learn how to read and write to .txt files. And I followed a web example at [URL]
So far I've only written the reading part and my code looks like this:
Imports System.IO
Public Class Writer
Dim FileName As String = Directory.Text + File.Text
Dim TextLine As String
[Code]....
The message I get when I click "Debug" is saying: InvalidOperationException was unhandled
InnerException: Use the "New" keyword to create an object instance.
Does anyone know how to deal with this because I think the code is alright, and I get no lines under any part of the code...
View 4 Replies
Sep 3, 2011
'Initialize The Database Connection'
Dim dbTRCoreDatabase As New TRCoreDatabase
'Query For Get The Employee ID'
Dim listEmployeeID As IQueryable(Of Long) = (From EmpMaster In dbTRCoreDatabase.EmployeeMasters Where EmpMaster.Email = [code]....
View 1 Replies
Oct 14, 2011
I am trying to save changes made to a list(of xxx) in a function... Am I over looking something because it barfs on the UpdateModel(e) with saying:
[Code]...
View 1 Replies
Jul 17, 2010
I am working on an application with a friend and I am getting an error.The error says:
System.InvalidOperationException was unhandled
Message=An error occurred creating the form. See Exception.InnerException for details. The error is: The process cannot access the file 'C:UsersAdministratorNotesWebSiteNotes.txt' because it is being used by another process.
Source=Website Notes
[code]....
Now I know why it is throwing this error but nothing I do will stop it from showing up.At the top of our form we have a module that we use to check if a file exists on the computer and if it doesn't then it will create the file.I have tried accessing that module from the form load event but with no luck as it still throws the error.
This is the source:
Imports System.IO
Imports System.Environment
Module CheckFiles
[code]....
View 12 Replies
