IDE :: IDE Giving Weird Build Error

Oct 26, 2006

I just finished putting the first 6 datagrid controls on my form and i went to go test it and got this build error: Error 4 Value of type 'String' cannot be converted to 'System. Windows.Forms.DataGridViewTextBoxColumn'.C:SoftwareForm1.vb 1425 19..When the line generating the error is this Me.Name = "Form1".where it has the "Form1" portion underlined in blue.This is a weird error because that line was made by the IDE to say the name of the form and has nothing to do with 'System.Windows.Forms.DataGridViewTextBoxColumn'.I tried saving my progress and restarting the IDE with no luck..Now I cannot even access the form in designer mode,One or more errors encountered while loading the designer. The errors are listed below. Some errors can be fixed by rebuilding your project, while others may require code changes.The designer cannot process the code at line 1424: Me.Name = "Form1" The code within the method 'InitializeComponent' is generated by the designer and should not be manually modified.

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VS 2008 Weird Error With A ToolStripMenuItem?

Jul 5, 2011

I had a lengthy subroutine with handler routines, like this, before:

Private Sub CompMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles _
ToolStripMenuItem3.Click, ToolStripMenuItem4.Click, ToolStripMenuItem5.Click,

[code].....

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VS 2010 Weird Error Even Teacher Can't Figure Out?

Apr 23, 2012

i made a program in which you put in a number like 10, and there are 10 cards. If you put in a number like 23, here is a possible output -

Card #1 - 3
Card #2 - 20
the rest 0

etc, where all the cards values adds up to the number you submit (the values displayed will be random)

The thing is, when i do a number below 10,000, it will come up as one card equaling that number and the rest equaling zero. If i do it a number 10,000 or larger, it will split it like it is supposed to.

[Code]...

interestingly, if you put in a break point, it works like it is supposed to!

What is going on? And why does it matter the size of the number for it to matter?

When i get home i'll edit this with screenshots.

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Weird Error Shockwave Flash And AxMedia Player

Sep 19, 2009

When i was making my program, i went to import Shockwave Flash Object and AxMedia Player, But they were not there. I know a way of restoring them, Dll's but, however i cannot find the DLL in the folder. Can someone either give me the location in an example "/vbexpress/*****" Or can someone give me a download link to the DLL so i can do that, aswell? I think the download link would be the best.

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C# - Nullable(of Guid) With Generic Delegate Causes Weird (hidden) Error?

Jun 6, 2011

Scroll to the bottom, EDIT 19 onwards. See @Chris's comments also for good examples

[code]...

It's all gone quiet since Edit 19ish and @Chris reinforcing the issue with a good example (thank you Chris). I'll make the question a little easier (and attempt to tidy up all of the above), can anyone prove this is not an MS bug or similar? It seems to be something under the hood is not correctly wired up for VB.Net with regards to Nullable Structures and Events? However, all other cases using the Nullable Structures does appear to work?

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Checking For Duplicate In Listbox Item Turns Out Weird Error

Apr 21, 2011

I'm trying to add a string to a listbox if there is none exact string existed inside, but it turns out a very weird error. Look at this.
On form_load, I have this:
AddHandler Server1.OnUserLoggedIn, AddressOf HandleUser

And then,
Public Sub HandleUser(ByVal username As String)
'Here, you handle adding the text to a text box.
Me.Invoke(New PrintMessageDelegate(AddressOf AddUser), username)
End Sub
[Code] .....

The output is when I connect the first client, it works fine. But, when I try to connect the second client, it prints out three times both the listbox1 item and the txtDisplay. It's like get caught in loop, but I have tried other kind of loops like for each and other string comparison too, still work that way.

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Weird Error Every Time Open My Project In Visual Studio

Feb 25, 2011

I have a VB application that uses databases and writes information onto an Excel-file. I have the Excel-file in my Project folder(Visual Studio 2008ProjectsProjectXProjectXExcel objektitListy.xls)Every time I open up my project I get the following error:[code]The thing is, I don't know why the error starts up in the first place. Why is the VS 'unable to open the module file' even though it exists in that folder and can be opened normally?Also, why does the error disappear when the file is opened manually from the containing folder?

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Giving An Error 'Access Denied'

Jun 29, 2009

I am trying to connect to a remote machine through a vb.net application and want to retrieve the system information using WMI Classes. But the source line (scope.Connect()) as below generates an error "Access Denied HRESULT...." [code]

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Class Giving Null Exception Error

Dec 10, 2011

It's saying I cant access this object in my class. Why? I'm pretty sure Ive used this method several times before. Below is some bits of code to figure this out. Object reference not set to an instance of an object."

[Code]...

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Datagrid's Scrolling Giving Error After Selecting Row?

Jun 8, 2012

When I am scrolling datagrid after selecting one row I am getting error as "An unhandled exception of type 'System.StackOverflowException' occurred in System.Windows.Forms.dll" on line :

MyBase.Edit(source, rowNum, bounds, [readOnly], instantText, cellIsVisible)

Whole code is given below :

[Code].....

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Drop Down List Giving Me Error On Submit

May 17, 2012

I am trying to check to see if a value in a textbox is already in a drop down list. If it is, I will simply write to a label. If the textbox value is not in the dropdown list then I want it to write to the dropdownlist.

I am getting the following error Collection was modified; enumeration operation may not execute

HTML

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
For Each value In DropDownList1.Items

[Code]....

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Instance Giving A Object Reference Error

Nov 11, 2009

I've written a new DAL and BLL, but when I try to create an instance of my class, I get an Object Reference error, is there anything particular I should be looking for? I am fairly new to this concept?

Call is such:Protected Sub btnSignin_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles btnSignin.Click Dim l As New Log()l.Log = "Attempted staff login with username [" & txtUsername.Text & "] and password [" & txtPassword.Text & "]"

[Code]...

Intellisense highlights no problems and if I Build the web site in VS I get a few warnings about schema information in the web.config (unrelated), otherwise no problem.

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Retrieving Data From A String Giving Error

Jun 29, 2009

Trying to run the following code but am receiving an string to integer error. Basically, I am running a report through code and trying to retrieve a number from a line of code by removing the line description and spaces. Having problems trying to figure out how to do that.

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim strURL As String

[Code].....

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VS 2005 Data Reader Giving Error

Aug 18, 2009

I have a show button.The user will select a data from the dropdown list of the combo and on clicking the show button the corresponding data will be fetched from the database and will be shown in the corresponding fields.So I did this

Private Sub Show_Btn_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Show_Btn.Click
Using connection As New OleDbConnection("Provider=Microsoft.Jet.Oledb.4.0;Data Source=BankAccount.mdb")
connection.Open()
Dim command As New OleDbCommand("Select * from BankAccount", connection)
Dim reader As OleDbDataReader = command.ExecuteReader()

[Code]...

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VS 2010 - Giving No Error But Data Not Updating

Feb 18, 2011

Private Sub btnUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdate.Click
Me.Personal1TableAdapter1.Update(Me.HRDataSet4)
Dim myConnection As OleDbConnection
Dim myCommand As OleDbCommand
[Code] .....

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May 10, 2012

I use web methods in a couple of places in the intranet site im working on and they work fine, however one page is constantly throwing a HTTP 401 error every time I try access the web method.

Im not sure how to aproach this issue, I have tried commenting everything out of the web method, and still get the 401 error, even a basic connect to the database just doing SELECT 1 does not show up when I watch the DB with profiler.

My web.config is the same for all pages in the intranet and I cannot see any differences in my ASP.Net page compared to pages where web methods work.[code]...

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Jan 21, 2011

I've developed a windows service that connects to a database and executes a Stored Procedure when running in debug mode I get the following message: "ContextSwitchDeadlock was detectedMessage: The CLR has been unable to transition from COM context 0x1ffc20 to COM context 0x1ffd90 for 60 seconds. The thread that owns the destinationcontext/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations."

vb
'Explicitly imports a namespace into a page, making all classes and interfaces of the imported namespace available to the page.

[code]....

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WPF Starting Animation From Code Giving Error

Mar 24, 2009

I'm trying to trigger an animation declared in the window's XAML file from the window's vb code when an event is raised (calling a function), like a window's "loaded" event.

Here's how I declare the animation (as a storyboard):

Dim StartAnimation As Storyboard = DirectCast(FindName("ServiceOn"), Storyboard)
Dim StopAnimation As Storyboard = DirectCast(FindName("ServiceOff"), Storyboard)

And here's the code for the function that is failing:

[Code]...

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Aug 19, 2009

I've developed a small HR program that connects to the SQL database which is on the local PC. I've created an ODBC connection to connect to this server and the program works fine. I've used VB 2008 Express edition to develop.

My concern is now I want to install this EXE on a server. ON the server, I've created the same databses and successfully created an ODBC connection on the server as well. Also created one shared folder. I copied all my EXEs and DLLS on to this folder. On the server I was able to execute the program without any problem.

From a remote client, I opened this shared folder and try to execute and it was giving me an ODBC related error, basically it was not able to detect the SQL connection.What I want to achieve is to have one EXE. The program did not throw any other errors.

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Sep 12, 2011

Public Shared Function GetData(ByVal id As Integer) As List(Of SomeClass)
Dim command As New OracleCommand
Dim conn As New OracleConnection(WebConfigurationManager.ConnectionStrings("ConnectionString").ToString)
Dim param As New OracleParameter

[code]....

This function is giving an ORA-00911 invalid character error. I have other methods of the same style and these are functioning correctly.

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Oct 5, 2009

I am using combobox to populate values from a table, 'Suppliers'. I put this combobox in a form wherein the order details are filled up. This column 'Supplier' is a Foreign Key and set to NotNull in the order detail table. Selecting the first available entry on the combobox gives error 'SupplierID cant be Null' . Selecting the 2nd value is OK, first choosing 2nd and coming back to 1 is also OK. This error comes up when trying to update the database.Even with the first value, the combobox is having a text. I would like to know why the error.

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May 23, 2012

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CODE:

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Why Is VS 2011 ASP.NET Project Giving A 401.2 Error When Debugging With IIS Express 7.5

May 10, 2012

Everything was working just fine...then one time running the debugger and I'm given a 401.2 error from IIS Express 7.5. I created a new project and tested - worked fine. I ensured the web.config and other project settings where identical - still getting the error in the original project!

[Code]...

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Printing In Vb Express 2008 - Debugging Of The Code Giving Error?

Dec 1, 2009

I am working in vb express 2008. I got some sample code from the site www.vbhelper.com and tried to implement it as it is. Debugging of the code gave following errors:Error 1 'Protected Overrides Sub Dispose(disposing As Boolean)' has multiple definitions with identical signatures.

C:Documents and SettingsDaLicaRestaurantLocal SettingsApplication DataTemporary ProjectsPrintingForm1.Designer.vb 7 29 Printing

[code]...

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Feb 18, 2010

I am having trouble while installing Visual Basic 6.0 . Setup gives message

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Jun 5, 2012

Why does my VB.Net Project disappear instead of giving an error message?This only started happening recently, but when debugging with Visual Studios instead of getting errors, the program just closes as though the stop button was pressed. This doesn't happen for all error types but it consistently happens if there is some sort of casting error. This is an overly simplified example, but the lines below would cause a program to vanish as soon as they run. Dim i As Integer i = "A" One other interesting part of this is that if that was in a try catch block the error would be caught instead of closing the program.I'm in an office setting so I've been able to test a number of configurations and have found that this problem only affects Windows XP PCs, but not Windows 7. And it consistently happens with Visual Studios 2010 Professional and Ultimate, Visual Studios 2008. Besides that we apparently we all need Windows 7.

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Nov 8, 2005

I got "Unrecoverable build error" when building setup project.I try the solution in [URL].. but did not work out.

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Jan 25, 2012

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App.config Based Windows App - Code Is Giving Error That The File Doesn't Exists?

Nov 30, 2009

I've one VB.net 1.1 based windows app. I recently added the app.config files. In code it works fine. But, when I compile the application, VS 2003 doesn't generate the appname.exe.config.(I read on google) I manually copied the app.config file to the Release folder. But the code is giving error that the file doesn't exists.

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ProxyReader.EndOfStream Keeps Giving Error In App (included .vb File, It's Working Alone On Fresh Project)?

Apr 20, 2012

Alone form proxy.vb is working without problem, but when I copy it and include to my project I getting always:

Exception:Thrown: "Index and count must refer to a location within the buffer." (System.ArgumentOutOfRangeException)

[code].....

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