Came across an issue when writing some code to load my app's settings-- the following code produces an InvalidOperationException error:
[Code]...
The debugger highlights the Next part, and from the MSDN page on the error, it looks like this is because the collection (CurrentMaps) has somehow changed from when it last bumped the enumerator (to process the For Each). Not sure why that would happen, though, as AddMap takes the MapInfo ByVal and doesn't touch the input (so the collection is not changed). I changed it to this, which works perfectly fine:
I got a serious problem. Though I have made my program newly it shows error. I have used 1280,1024 animation only for first form then used 1280,1024 image for every form. Today I was checking then it was showing me error message for 19th & 20th form. If I use On Error Resume Next then it shows error for another form ; if I use same code there in the menu item I mean so that I can get rid of error when I click to show a form it shows another error. First error message is "InvalidOperationException was unhandeled An error occurred creating the form. See Exception.InnerException for details. The error is parameter is not valid." and second error is "OutofMemoryException was unhandled Exception of type 'System.OutOfMemoryException' was thrown". I have noticed it that it doesnt show error message for those form which have few labels and text boxes. It shows error message for those forms which have 1 menu bar, 2 picture boxes(one is 1280,1024 & another is 250,456), 2 group boxes, 40 labels, 3 combo boxes, 38 text boxes & three buttons. Please help me I need to get rid of this problem. Does it mean that I cant use unlimited control there in my form?
ok so i viewed some other question that are ruffly the same and i am still confused, here is the stacktrace
at Game3.My.MyProject.MyForms.Create__Instance__[T](T Instance) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 190 at Game3.My.MyProject.MyForms.get_Character_Creator() at Game3.My.MyApplication.OnCreateMainForm() in C:UsersMasonDocumentsVisual Studio 2010ProjectsGame3Game3My ProjectApplication.Designer.vb:line 35
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also, where is game3.my.myproject, obviously its a line of code but what is it in.
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
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?
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.
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!
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.
at my visual studio class we made a data base program! i was using VB 2008 on a win xp x86 machine i copy the project on a usb stick because i want at home to work on visual aspects! my pc have win 7 x64 and now my project doesnt work! it shows me an error i cant get to the second form from project!here is the error:
System.InvalidOperationException was unhandled Message="The 'Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine." Source="System.Data" StackTrace:
I need to make Mastermind for school (vb.net).It must work as single-player (thats already finished), but we also must make it work multiplayer. We got the server with the task, and don't have to program its ourselves.I can't find why I get this error.
A VB.NET app is working on XP, but not in Win 7. User executes the program and it immediate dies with "Stopped Working". A Report.wer file was created and there's no detailed reason other than "System.InvalidOperationException".
How do I get it to tell me more. I put a messagebox in the form load, but it didn't get that far.
I am having the following error in VB 2008:System.InvalidOperationException was unhandled Message="An error occurred creating the form. See Exception.InnerException for details. The error is: Object reference not set to an instance of an object."
I bound my dataset to a datagridview and when I did any changes with the data in it and try to send it to the database (pressing a Button) got the error message:"InvalidOperationException error was handled.Update requires a valid UpdateCommand (or InsertCommand depend on the action)when passed DataRow collection with modified rows."I read the related posts but they didn't solve my problem. (I have primary key in the table and the AllowUserTo... properties are set to True.)My table is very simple:
I am using VS 2008, Office 2007, and Win7 Home Premium on my system.I have a simple application which should be a breeze to build. All I am attempting to do is pull data from an Access database with four small tables into a data grid on a windows project. Should be simple, set up the data connection, choose a datagrid from the table in the data source view, drag it onto the page and done, right?I can't get it to work. It will all work fine until I attempt to run or debug the project. The data will not show up. The data grid does, but I get this error: A first chance exception of type 'System.InvalidOperationException' occurred in System.Data.dll
As I said, the project seems to build fine, but it will not pull the data. After the initial build I get the message that Windows will show this page in Compatibility View. Is it something with Win7 Home Premium, or a setting somewhere?
I'm a beginner in VB.net, I'm trying to develop P2P based Chat application from this thread. The chat application has server side and client side. Serverside items: Form1.vb, BB_Server, RTS_Listener, and RTS_SocketClient. And for Clientside items: Form1.vb, BB_Client, RTS_SocketClient. Below is the code of simple form I tried to build. I'm still trying to establish a connection for the server, so the form only has txtDisplay, txtSend, and btnSend controls.
i made an app with vb 2008 express and decided to use inno setup as my installer. i copied the .exe from the release folder, but when everything is installed it gives the error "system.invalidoperationexception". is there anything that needs to be included maybe? the system had all necessary updates as far as i know.tried on a win7 system as well with no success.
I am trying to perform a simple bound connection between an Access database and a text box on a form. This is actually Chapter 18 of the "Microsoft Visual Basic 2008" book.I get the same error message when trying to create my own project "MY ADO Form" or the "ADO Form" project supplied from the DVD provided with the book. I am running the 90 Day Trial Version of Visual Studio 2008 with SP1 and Net 3.5 SP1.
My operating system is the 64 bit Version of Vista with all updates.The error when I try to run the application in the debug mode is:"A first chance exception of type 'System.InvalidOperationException' occurred in System.Data.dll"and as a result no data shows up in the text box from the database and the data selection bar is grayed out in the form. The underlying database "Students Data Set" appears to be fine as I have seen the correct data for the fields "Instructor" and "PhoneNumber" prior to running the program and when connecting with the database.
I've just started learning VB.NET with VS 9.0; a small application I'm working on keeps returning an "A first chance exception of type System InvalidOperationException occurred in System Windows Forms dll" error from the Immediate Window. The application has almost zero functionality so far, it consists of a menu strip with:
File About |Open |Save |Save As |Quit
The only code I have written opens an Open File dialog, a Save As dialog, an About window with background sound and an OK button, and the Quit button which exits.
Since there is almost no code for me to search through, I can't understand why there would be an error. The program runs just fine when I'm debugging it too.
Makes the following statement about the code below:
**"The computer evaluates the loop condition in the Do...Loop statment to determine whether the loop instructions should be processed. In this case, the inputsales <> String.Empty condition compares the contenst of the input sales variable to the String.Empty value. As you know the String.Empty value represents a zero length, or empty, string if the inputsales variable is empty, the loop condition evaluates to True and the computer process the loop instructions. *If on the other hand the inputsales variable is not empty, the loop condition evaluates to false and the computer skips over the loop instructions.
Based on the code I think it is the opposite: ...that while the inputsales value is not empty it should evaluate to true and process the loop and if it is empty it should evaluate to false and skip the loop?
I decided to go back to the VB6 book, "Learn to Program Visual Basic Objects", so I can code it in VB2010. This has been a great learning experience. However I've run into a problem. I'm getting an error with a For....Each loop for a collection class. The error message states, Expression is of type 'China.Order', which is not a collection type." From what I've deduced the problem deals with an enumerator. I could be wrong.
i have the following code for getting the number of files on a drive:[code]I want to skip the files which i dont have access to. But my error is occuring before the try hence i am not able to continue the loop.Please advice on how should i continue the for loop disregarding the error.
Code: p = -1 Try ListBox3.SelectedIndex = p Catch ex As Exception ListBox3.SelectedIndex = -1 p = ListBox3.SelectedIndex End Try Just cycles through my listbox without exiting the try. It keeps having an error causing the catch again.
