.net - VS2010 ItemTemplate Throws Exception Until Project Properties Opened?
Feb 21, 2012
Okay, so I wrote a few custom ItemTemplates for VS2010 that implement IWizard in VB.NET (4.0). Straight forward enough. They work during my testing, but when someone else deploys and attempts to use any of them, Visual Studio throws an incredibly generic Exception has been thrown by a target of invocation error.
Stranger still, after they open up the project properties and try again... they work. Without changing anything. Anyone have any clue what is going on? Or perhaps even just a way of getting VS to give me a more specific error? I already tried devenv.exe /log but nothing out of the ordinary was there.
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Mar 28, 2011
I've got a code sample below that will compile, but not run. Start it in the debugger by clicking the "step into" button on the toolbar, and an exception pops up before it reaches the first line of user code:
"Could not load type 'TestPrivileges.Win32Module+TOKEN_PRIVILEGES' from assembly 'TestPrivileges, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'."
Comment out either the 'Dim ... TOKEN_PRIVILEGES' line in the module or the 'Public Shared ... TOKEN_PRIVILEGES' at the end of the class, and the problem will stop occurring.Visual Studio 2008 as well as 2010 does it.
Module Module1
Sub Main()
Dim newState As Win32Module.TOKEN_PRIVILEGES = New Win32Module.TOKEN_PRIVILEGES
MsgBox("Here I am")
[code]....
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Dec 20, 2010
Public Class ExtendedDateTimePicker Inherits DateTimePicker
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May 6, 2012
I use DataGridView in my project. Everything worked fine until I added some code in the RowValidating event. During the form_load event exception is thrown on the statement that set the datasource of the DataGridView.The project uses bindingsource for the datasource of the DataGridView. My validating code is shown below:
Dim currentRow As DataGridViewRow = Me.dgExpenditure.Rows(e.RowIndex)
Dim incexpCell As DataGridViewCell = currentRow.Cells(0)
If Not Me.closingBoolean Then
[code]....
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Apr 24, 2011
I debated whether or not to ask in the database section, but decided this was probably more of a VB question, than DB.I'm performing a query on my database and add its value to a DGV. At the moment, I'm just running tests to make sure the base example works so I can expand on it for more advanced tests.[code]It doesn't matter how I add the row, just adding it causes the error. And yes, the AllowUsersToAddRows property of the DGV is set to True, which wouldn't cause this problem anyway, but I decided to be extra careful.
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Nov 14, 2009
i want to run a query and use the result for something else in my vb.net code. I have, opened the connection, passed the query and the connection object to the SqlCommand object and read it with the datareader object. The DataReader's HasRows property's value evaluates to true but i get an InvalidOperationException when i want to access the results of the query with the DataReader.[code]
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Nov 15, 2011
I'm having an issue with updating a couple list boxes in the form load procedure. I have an array created from a MySQL database, and when I try to add that array to more than one ListBox, I get: A first chance exception of type 'System.ArgumentNullException' occurred in System.Windows.Forms.dll
[Code]...
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Oct 1, 2010
I'm getting a "IndexOutOfRangeExeption was unhandled" in my project
Private Sub LookUpButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles LookUpButton.Click
'Look up the information on the state.
[Code].....
I'm about ready to give up and go another route. I just thought I'd ask here.
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Dec 10, 2011
For Each ScreenName As String In da.settings_LinkedScreenNames
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Aug 19, 2010
I have the following method to strip hidden and user-specified columns from a gridviewrow and return a tablerow. [Code] However, when I run this code and hit the Add method for the TableRow, I get an InvalidOperationException stating the Collection was modified; enumeration operation may not execute. I've gotten this exception before, but usually it's because I'm attempting to modify a table that is databound.
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Jun 21, 2011
I am trying to show a dialog from one of my WPF view model commands however when i call ShowDialog() it throws a System.ArgumentException?
Here is my code:
Public ReadOnly Property OpenParser As ICommand
Get
Return New RelayCommand(Sub(param As Object) OpenParserExecute(DirectCast(param, Frame)))
End Get
[code]....
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Mar 22, 2012
I was working with a class used to update database.All things were working for 3 years perfactly.Now it started throwing exception for two records only.When i edit these two records and try to save back to db it throws exception.Else it works fine.
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Sep 17, 2009
I remove the datagridviewcomboboxcolumn from the datagridview and dispose it. When I go to dispose of the datatable that is the datasource to the comboboxcolumn an ArgumentOutOfRangeException is thrown from the datagridview. Apparently the datagridview is still handling events for datagridviewcomboboxcells for comoboboxcolumns that have been removed from the datagridview.
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Apr 8, 2010
i am writing a program that will store some passwords in order to make it more user friendly. Ofcourse i want to encrypt it and so i started to learn how to use the 3Des encryption method.
[Code]...
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May 27, 2011
i am trying to develop a simple app to automate binding of data from access db for filling a form in a sequential order vb 2008 express. an error keeps coming up 'expression expected' on an sql query in the code i wrote. the code is shown below:
Private
Sub STARTButton_Click(ByVal
sender As System.Object,
ByVal e
[code]....
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Jul 6, 2009
I'm getting this exception in the designer when I try to look the form that contains the tab control in design mode. After I click OK, the designer simply shuts down
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Nov 3, 2009
VB2008 (in VisualStudio) and automation of tasks in Excel. My work env.: PC#1 - WinXP Sp3 with VisualStudio & Office O27k (all US-EN) installed, PC#2 - when I am not at home I use an Laptop with WinXP + O27k (DE) and VisualStudio(US-EN), but the mix of language does not seem to be a problem - at least until now!
In one 'TestBench' appl. I have the following line of: oWB.Names.Add("DR_AppData2", RefersToR1C1:="=OFFSET(AppData!R3C1,0,0,(COUNTA(AppData!C1)-2),1)")
Where 'oWB' is a WorkBook Object and 'Names' refers to named regions in an Excel worksheet. I am adding a new 'Region': DR_AppData2 and assigning a dynamic number of rows.
The above line works perfectly well on 'PC#1' but throws an exception on 'PC#2' and this has really irritated me, and I find no reason for this behaviour! The Project environment and included references / resources are truly identical, because I copy the project data from one to the other. The only real difference is in the object library reference, on 'PC#1' Excel.exe is in English, and on 'PC#2' is in German. Having said that I have also altered the value assigned in : "RefersToR1C1:=" to the equivalent in German, but the error thrown is the same.
I have attached :
1. Screenshot of the error
2. Exception Details
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Apr 22, 2009
I am trying to send E-mails asynchronously and it works fine as long as there isn't an AlternateView attached to the e-mail. When there is an alternate view, I get the following error:
Cannot access a disposed object. Object name: 'System.Net.Mail.AlternateView'
System.Net.Mail.SmtpException: Failure sending mail. ---> System.ObjectDisposedException: Cannot access a disposed object.
[code]....
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Jul 12, 2011
I have done a access setting in registry in HKEY_CURRENT_USERSoftwareMicrosoftInternet ExplorerSettings. Here i have given no access to the "Setting" and when i try to create a linklable in windowform i am getting exception. Ex:
The control System.Windows.Forms.LinkLabel has throw an unhandled exception in the designer and has been disabled. Exception: Requested Registry access is not allowed.
Stack trace:
at System.Windows.Forms.LinkLabel.get_LinkColor()
Exception Text:
System.Security.SecurityException: Requested registry access is not allowed.
at System.ThrowHelper.ThrowSecurityException(ExceptionResource resource)
at Microsoft.Win32.RegistryKey.OpenSubKey(String name, Boolean writable)
[CODE].......................
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Aug 27, 2009
I'm calling Sqlcommand.ExecScalar() - stepping through the stored proc works fine, right under
RETURN @RecordNum
@RecordNum correctly contains a bigint, as scoped. When I step into the RETURN.. I get an exception thrown, that visual studio does not seem to be able to capture.
The stored procedure works fine when executed directly, and returns a value without problem, and it seems like all is well, stepping through it from my code.
But as soon as I step into 'RETURN @RecordNum' (and recordnum contains a valid number..) BOOM! EXCEPTION! (and no details in the exception either back in visual studio.
I'm blaming a glitch in the matrix.
I've turned off even assigned the return from the ExecScalar to anything, same result.. I've tried ExecReader(), same result. I have turned NO COUNT on and off, same result. If I wasn't already bald, I would be now!
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Aug 10, 2011
Goal: Load a validated xml file in to memory, traverse through the document to create objects and load object properties with values in named xml tags.Problem: How do I deal with missing tags?Amplifying information: in this example, there are three values I'm looking for; name (mandatory), location (optional), comments(optional). I found the problem in prototyping the solution. My inital test was with an xml file wtih all fields present. It works fine as long as I don't have nanespace declarations in the root element. However, if I leave them in place I get a null reference exceptoin. The same thing occurs if I leave off an optional tag. It appears that if the Element I'm trying to get a value on doesn't exist within that element, a null reference exception is thrown.
Code:
Private Sub btnImport_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnImport.Click
Dim xelement As XElement = xelement.Load(txtXMLfileLoc.Text)
Dim ICAOxs As IEnumerable(Of XElement) = xelement.Elements()
[code]....
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Jul 12, 2010
I am using .net 2.0 and I am getting an exception of system is out of memory. My existing function takes datatable as input parameter which contains little bit large data (eg. more than 35000 rows) and in that function I am appending some xml node data and atlast I am returning the stringbuilder as a object.
[Code]...
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Jun 17, 2009
Error: System.Runtime.InteropServices.COMException (0x800A03EC): Exception from HRESULT: 0x800A03EC is thrown after execeution of Microsoft.Office.Interop.Excel.ApplicationClass.set_Calculation(XlCalc ulation RHS)
Out of nowhere COM start throwing exception when I set change excel's Calculation property. Line of code that followed set_Calculation was.Workbooks._Open. This used to cause exception every second try. Than I changed order, first open workbook and than set calculation property. Amount of exceptions start decreasing than I added thread.sleep(200) and exception is not thrown anymore. This happens only on one some of user machines while others are fine.Application itself is single threaded so this delay should be of importance if and only if set_Calculation is executed asynchronously. What I'm missing here?
[Code]...
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Nov 30, 2011
I am working on a login page for an asp.net application. I'm making my own login and everything is working so far: I get a connection, the query is asking to return Count from the table where the username and password match the username password in the table.
[Code]...
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Sep 17, 2010
I have a TableLayoutPanel with a Chart in the 2nd column and 3rd row, and it's ColumnSpan and RowSpan properties are set to 1 (the effect is that it takes up about a quarter of the screen). When I click the chart I want it to take up most of the screen. I was thinking that I would have to change it's Column/Row and ColumnSpan/RowSpan properties, but it might be easier to change the Column/Row values of the table itself. My main problem is that I'm just starting off on Visual Studio 2010 coming from VB6 and I have no idea where to access any of these properties.
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Apr 29, 2011
I am working on an ASP.NET project where I use VB.NET within Visual Studio 2010. Some of the other developers on the project are using Visual Studio 2008. We all check our code into single SVN repository. I would like to start using Auto-Implemented Properties within VB.NET ...
Property FirstName as String
instead of ...
Private FirstName as String
[code].....
My concern is that this could mess up things for those using VS2008. What would happen if someone using VS2008 needed to modify my class that made use of Auto-Implemented Properties? I am assuming that since everything compiles down to IL code then there would be no issue in binary compatibility. Though a problem would arise when editing source.
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Nov 10, 2011
I have somehow managed to disable auto-implemented properties in my VS2010 IDE how to turn it back on. Almost every article on the internet loves to explain auto-implemented properties but doesnt give you the crucial option of how to turn it on or off.
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May 27, 2011
I'm doing a small tool that basically wipes the document properties of each .*doc file in a specified folder. The code is working, however, if the document is already opened, I'm presented with a text box asking if I want to open a read only copy etc. I want the code to abort if that happens and rather write it down in a log file or something. And just move on to the next file. How can I do this? I'm talking about editing thousands of documents.
This is the code I have so far:
Imports Office = Microsoft.Office.Core
Imports Word = Microsoft.Office.Interop.Word
Imports System.IO
[Code].....
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Apr 1, 2012
I have a project the was written by someone else. I am very new to VB. I am trying to make changes the the project. When I first opened it it went through the conversion with no errors. The report has not errors however when I try to open the project I get the error "vbproj cannot be opened because this project type (.vbproj) is not supported by this version of the application". I am using VB2008 Express and have read all the other responses to the issue but Ijust do not know waht to do.
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May 9, 2011
can a vb6 project be imported into vs2010? I have a vb6 project that I have been working on and would prefer not to start all over again.
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