Error - TypeLoadException Was Unhandled?
Mar 16, 2012
I'm getting a "TypeLoadException was unhandled" error. The description says Could not load type 'dnUtilities.OtherFunctions' from assembly 'dnUtilities, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'.
So i've got a class library project. I've built that into a dll and am referencing it in a project in another solution. The name is "dnUtilities" and i've stored a lot of subs and functions inside it. I just got this error when i added a new module and tried calling a sub from it. I've got no idea why this error is happening since all the other functions from the other modules work. Besides modules i've also got a usercontrol in the dll. The framework of the dll and my calling project are both 3.5.
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May 10, 2011
I have recently updated a legacy compact framework application to support Windows Mobile 6.5 but after going through my backwards compatability testing I have an issue with the WinCE 5 device.When attempting to run the application from both the EXE and the debugger I get the "An unhandled exception of type 'System.TypeLoadException' occurred in Unknown Module." exception but its not giving me any idea which dll / type it has issue with.The changes do work on the Windows Mobile 6.5 Motorola device and the Pocket PC 2003 Psion Device but not on the WinCE5 Psion device.Does anyone have any ideas how I can find out which reference is causing me the issue. I have tried removing the new references to the Symbol barcoding and imaging libraries but I am still getting the same error.OK, it looks like the .Net Compact Framework installation had corrupted some how. I flattened the device, reinstalled and everything appears to be working.
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May 8, 2012
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
[Code]...
also, where is game3.my.myproject, obviously its a line of code but what is it in.
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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].....
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Jun 3, 2009
I have made a tic tac toe board and when i go to debug the application i get a "NullReferenceException was unhandled".
this happens diring this part of the code:
Dim x As Integer = Val(index.Chars(0))
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Sep 16, 2009
Dim conn As New OleDb.OleDbConnection
Dim ds As New DataSet
Dim da As OleDb.OleDbDataAdapter
Dim sql As String
[code]....
The above code stops running at the point of the da.fill line with the error that the specified table does not exist.In my limited knowledge so far to me it looks like the operators table exists as it showing in the Solution Explorer.
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May 9, 2012
Trying to port old code from VB6.
Public CHandles() As Long
Public SHandles() As Long
Public rerrors() As Long
[code]....
Generates a SafeArrayTypeMismatchException was unhandled. Specified Array was not of the expected type error.I assume it means the SHandles, rerrors, and CHandles arrays but not sure.
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Mar 20, 2009
The exception is thrown in a defined class when trying to call a Sub procedure.
The main Form1:
Imports TeenyStudent.Student
Public Class Form1
Private students As Array = Array.CreateInstance( _
GetType(Student), 20)
[code]...
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Nov 14, 2009
I was testing out an application that I created which then I recieved an error as said in this topic title. The application that I am making is one where it requires 2 form GUIs, my main one is called frmConferenceRegistrationSystem (the first picture) and my secondary one is called frmConferenceOptions (The second picture) and what they are supposed to do overall is total up the cost of registering for a conference that is selected in frmConferenceOptions and the error that I am recieving is within the ElseIf statements in the frmConferenceOptions form (third picture and first section of code) And also here is the rest of my code for both of my form GUIs at the bottom of this topic
If ltbList.SelectedItem(IntrotoECommerce) And ckbConferenceRegistration896.CheckState = CheckState.Checked Then
My frmConferenceRegistrationSystem Code:
Public Class frmConferenceRegistrationSystem
[code]....
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May 17, 2012
I am making a simple calculator and it's saying InvalidCastException was unhandled when I try to debug it, here's the code, please tell me whats wrong with it: (and yes I have renamed the textboxes to addequals etc...
Public Class Form1
Private Sub WebBrowser1_DocumentCompleted(ByVal sender As System.Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs)
End Sub
[code].....
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Oct 11, 2011
i have a probleam with my coding.The error which i got is olehDBexeception was unhandled.In my coding here i am developing function use to subtract number in database based on user input.I dont how to solve this error? I also highlight the line cause an error and also i attach picture of the probleam.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'open db connection'
[code]....
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May 17, 2010
[code] I'm basically trying to see if a record already exists. My problem is when I run this I get a "ArgumentNullException was unhandled" error It occurs on the line "dbAdapter.Fill(output)" in the sub.
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Mar 8, 2011
All, I am trying to have my program self terminate, (the equivalent to clicking the X close program). I want my 2010 program to run and then stop.
I have tried the me.close() but I get the error:ObjectDisposedException was unhandled
The code works fine, and I do get the file created, but.... I get the error.
Here is my short
Public Class Form1
Public Sub New()
Dim buffer1 As String
[Code]......
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Jun 3, 2009
I am getting a NullReferenceException was unhandled error when i run my debugging in this part of my code: Dim x As Integer = Val(index.Chars(0))
what can i do so this will stop and my program will work?
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Jun 22, 2010
im am trying out this code but it keeps giving an error msg but i cant see where the error is...
query = New OleDbCommand("INSERT INTO studenttable(sname,scourse,syear,ssemestor,sgrade)values('" & TextBox1.Text & " ',' " & TextBox2.Text & " ',' " & TextBox3.Text & " ',' " & TextBox4.Text & " ',' " & TextBox5.Text & " )", con)
con.Open()
query.ExecuteNonQuery()
con.Close()
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Apr 12, 2012
I have some trouble in SMS gateway project using VB.Net (VS 2010)while programme was running, I found error "InvalidCastException was Unhandled", then my programme cannot continue. below I copy the code of the programme :
----------------------------------------------------------------------------------------------------------------------
Option Explicit On
Public Class MessageReceiver
Private TPMessageTime As String
[code]....
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Aug 29, 2011
When editing my DGV (SSN number 123-12-0000 to 123-12-1000), I am getting an error.
Unable to cast object of type 'System.Windows.Forms.DataGridViewTextBoxCell' to type 'System.Windows.Forms.DataGridViewCheckBoxCell'.
in the following code
Private Sub dgvResults_CellValueChanged(ByVal sender As Object, ByVal e As DataGridViewCellEventArgs)
If (Not IsHeaderCheckBoxClicked) Then
RowCheckBoxClick(DirectCast(dgvResults(e.ColumnIndex, e.RowIndex), DataGridViewCheckBoxCell))
End If
End Sub
It happens after I press enter or move focus to another column. Any idea why this is happening?
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Sep 20, 2011
Here iam trying to insert some values to SQLServer 2005 Database.The following error displaying.I changed the corresponding column size,still the error persists.how can i sove this error-:
'String or binary data would be truncated. The statement has been terminated'
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Feb 28, 2012
iam trying to insert some values to SQLServer 2005 Database.The following error displaying.I changed the corresponding column size,still the error persists.how can i sove this error-:
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Oct 19, 2011
I have a custom window form control contained within its own project that is referenced in the solution's main project. I am currently get an error stating: "Could not load type ... because format is invalid." The type in question is actually a structure. I get the general problem in that for some reason the struct can't be obtained from its assembly, but I don't quite understand what is meant by "format is invalid.". I originally had the solution running on a full Win XP machine before transferring to my Win7
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Oct 6, 2011
I'm trying to call a C++-compiled DLL from VB.net and I'm running into some problems. Seems like there's an obvious solution, but I can't figure it out.Here is the function declaration in C++:
MyFunction(int trailingaveragesize, double sigmasize, int myflag, int sizeSeries, double *Xdata, double *Ydata, int sizeinputparameter, int *averagePairs, double *PositionsSize, double *PnLSize)
Here is how I'm calling it in VB.Net:
[Code]...
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Apr 11, 2008
i debug my code it says that i have a syntax error in Insert into statement and it highlights the
da.Update(ds,"MovieData") command ?? Why isn't this working?
[Code]...
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Jan 3, 2011
I have the follwing codewhich transfer the value from NumericUpDown64 to the array Conc(0,0) which is part of the structure USerInput:
UserInput.Conc(0, 0) = NumericUpDown64.Value
When I run the program I recieve the NullReferenceException was unhandled. Object reference not set to an instance of an object.
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Nov 28, 2011
nullrefererence exception was unhandled. I'm getting this error. could someone pls help
here is my code
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
WebBrowser1.Document.GetElementById("Email").SetAt tribute("value", TextBox1.Text)
WebBrowser1.Document.GetElementById("Password").Se tAttribute("value", TextBox1.Text)
WebBrowser1.Document.GetElementById("Signin").Invo keMember("Click")
End Sub
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Apr 9, 2010
I have some code that uses the Windows Media Player Library capabilities to get around using ID3 tags. I keep getting this error however, whenever I add 1000+ songs to the datagridview:
For Each File_FullPath As String In My.Computer.FileSystem.GetFiles(My.Settings.Path, FileIO.SearchOption.SearchAllSubDirectories, "*.mp3", "*.m4a")
Dim WMP As New WindowsMediaPlayer
WMP.URL = File_FullPath
[code]....
Here is the code I'm using that gets the error:The problem is I need a way to clear the WMP.mediaCollection, but I don't know how.
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Aug 26, 2011
I have created a vb.net console application when i am running the source code it will work fine.But when i am running the Executable file it is throwing an exeption like "System.TypeInitializationException was unhandled".In my application i have used MCL PrinterMonitorComponent
my code is:
Imports PrinterQueueWatch
Imports SpoolMonitoringIPC
Imports System.Data.SqlClient
[code]....
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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]....
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May 6, 2012
im getting this error MySqlConnection.Open() Unhandled Here is the code i'm using
Imports System.Data.SqlClient
Imports MySql.Data.MySqlClient
Public Class LoginForm1
Dim MySqLConnection As MySqlConnection
[code]....
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Apr 8, 2009
Im getting an Error saying:"NullReferenceException was Unhandled - Object reference not set to an instance of an object."I have no idea what this means as a beginner,
Me.FilmTableTableAdapter.Fill(Me.DVDDatabaseDataSet.FilmTable)
Dim con As OleDb.OleDbConnection = New OleDb.OleDbConnection("Provider=Microsoft.jet.oledb.4.0;data source=|DataDirectory|\DVDDatabase.mdb")
Dim cmd As OleDb.OleDbCommand = New OleDb.OleDbCommand("SELECT * FROM FilmTable", con)
con.Open()
[Code]...
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May 10, 2010
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:
[code].....
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