Error : An Exception Of Type 'System.NullReferenceException' Occurred In EZEE Restaurant.exe
Jan 18, 2010
For i = 1 To 60
Me.Controls("picturebox" & i).BackColor = Color.White
Next
i want to change backcolor of picturebox but when i run program,i get this error :
An exception of type 'System.NullReferenceException' occurred in EZEE Restaurant.exe but was not handled in user code
Additional information: Object reference not set to an instance of an object.i go to Project->Add reference and then look for "System.NullReferenceException" but i don't find it.
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Nov 29, 2011
Here are parts of my
Dim setting As My.MySettings
lvl As Integer
Dim xp As Integer
Dim xpt As Integer
[code]....
I have done the settings as type integer and set the values that I wanted but I get this error: A first chance exception of type 'System.NullReferenceException' occurred in Click Game concepts.exe
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Apr 26, 2010
I get this message each time I run the appA first chance exception of type 'System.NullReferenceException' occurred in <Applicaton>I have isolated the key Subs which seem to upset it, but I cannot for the life of me figure out what it is about it that's upsetting it. I have used On Error Goto etc for the time being, which gets around it but I would like to solve it rather than jumpver it.Err.Description returns "Object reference not set to an instance of an object."My sub looks like this:
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Aug 5, 2010
I'm converting another project from VS2003 to VS2010 and am getting this message in the Immediate Window before I hit my MyBase.Load. From the warning, it looks like somting is undefined yet is being used - causing an exception. How can I trace this down?My app uses 2 DLLs, could the msg be coming from them during their load?
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Sep 2, 2009
I have a large project where we have 2-3 dll projects that are converted from VB6 to VB.NET. We have fixed all the issues that caused compilation errors, and most of obvious issues in running, so now we have basically a program up and running. The exe is created from scratch in VB.NET, using a lot of functionality from the converted dll's (including GUI forms). What I wonder is when I run the program in debug mode, I get a bunch of warnings in the "Immediate Window" saying:
A first chance exception of type 'System.Exception' occurred in Microsoft.VisualBasic.dll
...and some of other type (but most of them in Microsoft.VisualBasic.dll).I was wondering if this is common in projects converted from VB6, or if it is caused by bad design in our code...
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May 5, 2011
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?
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Mar 21, 2011
get out from the below loop
Shared Function GetIPAddress() As String
Dim sam As System.Net.IPAddress
Dim sam1 As String
[code]....
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Feb 19, 2010
When I run my project I get "An unhandled exception of type 'System.StackOverflowException' occurred in System.Windows.Forms.dll"
Public Class frmViewReport
Dim objForm As New frmViewReport
Private Sub frmViewReport_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
objForm.ViewReport("C:a2.rtp", , "@parameter1=test�mter2=10")
[code]....
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Nov 16, 2009
I have the following code running, the first time I change the selected index, everything runs smoothly. However, if I try to change the selected index again, nothing happens and the subcategories combobox values do not change.
Private Sub cboMainCategory_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cboMainCategory.SelectedIndexChanged
'* make sure the combobox is fully loaded
[code]....
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May 6, 2009
I keep getting an eroor this error says: An unhandled exception of type 'System.ArgumentOutOfRangeException' occurred in system.windows.forms.dll Additional information: Specified argument was out of the range of valid values.
Option Strict On
Public Class frmWeeklyReport
Inherits System.Windows.Forms.Form
[code].....
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Feb 6, 2010
I am working on a card game, and i get this werid error:
A first chance exception of type 'System.Reflection.TargetParameterCountException' occurred in System.Windows.Forms.dll
The code that is cousing this error is:
Private Delegate Sub ShowcardDelegate(ByVal test As String, ByVal objtest As Object, ByVal value As Boolean)
Private Sub Showcard(ByVal test As String, ByVal objtest As Object, ByVal value As Boolean)
If objtest.InvokeRequired Then
[code].....
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Dec 1, 2011
I'm using a 64 Bit Windows 7 system and trying to use PrintDialog. I know it doesn't work on Windows 7 unless you add this
PrintDialog1.UseEXDialog = True
So I have added that code but then I get this error for the following
Dim result As DialogResult = PrintDialog1.ShowDialog()
And the error:
"An exception of type 'System.Runtime.InteropServices.SEHException' occurred in System.Windows.Forms.dll but was not handled in user code
Additional information: External component has thrown an exception."
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Jul 13, 2009
I am working on a multi-form code. For some reason, this randomly began happening just about the time I finished my code. The intial form loads just fine, but when I go to click on any of the selected buttons, the code crashes. and I get an unhandled exception of type 'System.stackoverflowexception' occured. Does anyone have any ideas? I have checked for any subs calling subs that call subs and I don't have anything of that nature. It is breaking at the point that is bolded and underlined.
Public Class Add_Description
Inherits System.Windows.Forms.Form
#Region " Windows Form Designer generated code "
[code]....
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Jul 13, 2009
I am working on a multi-form code. For some reason, this randomly began happening just about the time I finished my code. The intial form loads just fine, but when I go to click on any of the selected buttons, the code crashes. and I get an unhandled exception of type 'System.stackoverflowexception' occured. I have checked for any subs calling subs that call subs and I don't have anything of that nature. It is breaking at the point that is bolded and underlined.
[Code]...
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Mar 16, 2009
I have used the Gridview_PageIndexChanging event in asp.net.i have used the code like this:
gridFileDetails.PageIndex = e.NewPageIndex
During the run time when i clicked the next page,it generates an error:
An exception of type 'System.InvalidCastException' occurred in FFK.DLL but was not handled in user
code
Additional information: Unable to cast
object of type
'System.Web.UI.WebControls.ContentPlaceHolder'
to type
'System.Web.UI.WebControls.GridViewRow'.
in the RowCommand event,I have used the following RowCommand event:
Protected Sub gridFileDetails_RowCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles gridFileDetails.RowCommand
Dim row As GridViewRow = CType(CType(e.CommandSource, Control).NamingContainer, GridViewRow)
[code]....
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Nov 9, 2009
Dll libray with VC++
.h file
__declspec (dllexport) unsigned long QueryUser(const wchar_t* AccountName,
wchar_t FullUserName[100],
[code]....
an error : An unhandled exception of type 'System.ExecutionEngineException' occurred in TestLib.exe
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Oct 9, 2011
Error is Simple Application -- Error Type (A first chance exception of type 'System.InvalidCastException' occurred in Microsoft.VisualBasic.dll)
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Aug 19, 2010
program supost to control (projector - done..., webcam - idk how do i read FPS of the camera ..., arduino - will take me 5 min...)
here is the code of form1:
[code]...
it chrashes here is the error : An unhandled exception of type 'System.StackOverflowException' occurred in Unknown Module.
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Mar 15, 2010
I have a text string like this which I will need to parse: FriMar1200:00:00EST2010 And I used the following Date.ParseExact("FriMar1200:00:00EST2010", "dddMMMddHH:mm:sszzzyyyy", Nothing) And it is giving me a A first chance exception of type 'System.FormatException' occurred in mscorlib.dll error.
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Jun 4, 2009
An unhandled exception of type 'System.Runtime.InteropServices.COMException' occurred in STUB_CREATOR.exe Additional information: Exception from HRESULT: 0x800A0036 (CTL_E_BADFILEMODE)
This is the line that creates the error
Dim f As New Scripting.FileSystemObject
starter = f.OpenTextFile(stub_path.Text + "" + cpp_file, Scripting.IOMode.ForWriting)
I have just previously opened the file for writing. but however i have closed the textstream with which i was writing into the file.
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Sep 27, 2008
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.
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Sep 2, 2011
I've spent a substantial amount of time trying to figure this out, but I keep getting the same error
A first chance exception of type 'System.Data.OleDb.OleDbException' occurred in System.Data.dll
A first chance exception of type 'System.NullReferenceException' occurred in project1.exe
This happens when I try to use the DataReader.my code is
Public Function Identification() As List(Of Integer)
Dim returnIndex As New List(Of Integer)
Dim dbCount As String = "SELECT Bookingid FROM bookdetail WHERE Date =" & getCurrentTimeString() & " 12:00:00 a.m."
Dim count As Integer = 0
[code]....
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Apr 14, 2011
An unhandled exception of type 'System.StackOverflowException' occurred in System.Windows.Forms.dll it also says make sure you do not have infinate loop or infinate recursion il give all code in order that they are executed in Check the chechbox and it disables all irelevent stuff and populates the combobox
Private Sub CheckBox_Spray_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox_Spray.CheckedChanged
If Me.CheckBox_Spray.Checked = True Then
[code]....
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Oct 21, 2011
[code].....
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Aug 6, 2002
An unhandled exception of type 'System.IO.IOException' occurred in mscorlib.dll Additional information: The process cannot access the file "c:Fax524b2cfa00.tif" because it is being used by another process.
[Code]....
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Oct 7, 2009
i am making an application that grabs an image from a folder, sets it to a picture box, then has the option to delete the folder... when i click the delete folder button i get the error:
[Code]...
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Feb 15, 2012
i have this code in my btnsave..it can detect conflicts but after that a dialog box saying: An unhandled exception of type 'System.NullReferenceException' occurred in AppointmentSchedulingClient.exe
Additional information: Object reference not set to an instance of an object. and it points to the green one below.
If Val(cbostart.Text) > Val(cboend.Text) Or Val(cbostart.Text) = Val(cboend.Text) Then
MsgBox("Error in time.", MsgBoxStyle.Information, "MESSAGE")
[Code].....
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Jan 27, 2010
Do While rdr2.Read()
Dim var1 As String = rdr2.Item("Week").ToString
Dim var2 As String = rdr2.Item("L1").ToString
Dim var3 As String = rdr2.Item("L2").ToString
It generates the following error: A first chance exception of type 'System.Data.SqlServerCe.SqlCeException' occurred in System.Data.SqlServerCe.dll
Interestingly, if I use a numeric value for the variable it for LSArraytemp, it writes to the database no problem at all.
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Dec 16, 2010
I would like to create a local user on a windows 7 PC, but gets the following error when commitchanges runs. I am administrator on the PC:
A first chance exception of type 'System.UnauthorizedAccessException' occurred in System.DirectoryServices.dll
Here is my code:
CODE:
I am using Visual Basic 2010 ultimate in Visual Studio 2010.
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Oct 14, 2011
I have a program that creates a Treeview from information procured through an ODBC query and dumped into a dataset. I have three such queries set up via radial buttons as well as a refresh button that triggers whatever radial button is active at the time it's clicked. The purpose of this program is to allow drag-and-drop of selected nodes, ending with a post to the database that officially makes that change of assignment to the new node.
[Code]...
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