Vba - On Error Doesn't Work - Reading Registry Value

Jun 3, 2009

this is strange, I've got a macro with an array containing several registry keys.
And I want to insert the values of these into predefined bookmarks in a Word document. This works great if the key is there, but if it isn't, I want the code to skip that and continue trying the next one in the array. I've got the code that looks like this:

[Code]...

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Registry Key Error If The Folder Doesn't Exist In VB

Dec 8, 2011

I am trying to add a registry key in to the file "MyApp" which doesn't yet exist in the registry key directory, when I try and write this key however I get an error from the debug console telling me the "NullReference was unhanded". If I go and manually make this folder it works brilliantly, I thought that this code would make the folder as well?

[Code]...

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After Publish Doesn't Work - Error: Unhandled Exception

Jul 4, 2010

I have creating timekeeping application, I was used drag and drop for my datagridview. During build I can add, edit and delete records. But when I published and run there was an error saying (see below). [Code] When JIT debugging is enabled, any unhandled exception, will be sent to the JIT debugger registered on the computer, rather than be handled by this dialog box.

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Get This Error When Trying To Populate A DataGridView / A Try...Catch Doesn't Work

Sep 2, 2009

I get this error when trying to populate a DataGridView.The last sentence of the error text says to handle the DataError event but I'm not sure how to do that. A Try...Catch doesn't work.

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[2005] When Try - Catch - End Try Doesn't Work - Crashes Or Throws Up An Error

Mar 15, 2009

I've used this in a couple of places and it simply doesn't work. Despit the try event, VB.Net still crashes or throws up an error.

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Tooltip On Windows 7 Doesn't Work VB2010 - Thecolor Doesn't Change ?

Jun 12, 2011

I am trying to change the background color of a tooltip

I am using tooltip.backgroundcolor = color.colr

No errors but thecolor doesn't change

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File I/O And Registry :: Reading Multiple Keys From The Registry?

Aug 27, 2008

I am writing an application that connects to a specific com port. This com port can change depending on how many physical ports are on the PC, and if other USB devices have installed com ports before this one.

I have the communication to the com port all working great, but I need to get the com port description not just the "COM#" which is all I currently get.

I found in the registry where the description is stored but am having trouble doing what I need.

In this key:

Code:
HKEY_LOCAL_MACHINESYSTEMControlSet001ControlClass{4D36E978-E325-11CE-BFC1-08002BE10318}

there is a varied number of sub keys. The are numbered 0000-NNNN depending on how many ports you have. Inside each of these keys, there are multiple values, although I am only interested in one or 2 of them.

My problem is, that I do not know how to get a list of the subkeys (the 0000-NNNN keys/folders) from the original key I posted. I have looked through a few registry tutorials, and I can view the default value in the listed key, but I could not find how to list the subkeys of the listed key.

Does anyone have any sample code they could share that shows how I can get a listing of subkeys, and then run through those subkeys checking for a specific value in one of the strings contained in the subkey?

I am using VB.net 2008 and Windows XP.

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VS - Program Doesn't Work Though Flash Player - When Click On Icon Of Program - Shows Error Message

Sep 30, 2010

I am really confused! My program doesn't work if I don't have Visual Studio here in my PC. To test it I have uninstalled Visual Studio. But my program doesn't work though Flash Player is present there (I have used Flash animation in the first form).

To be more sure about it I have installed Flash. But it's not working! That means the Flash animation file (.swf) is not making a problem! It needs support from Visual Studio to start. Doesn't it mean that some files are not attached with a setup file as a result it needs Visual Studio to run? Let me tell you how I create a setup file of my program.

CODE:

When I click on the icon of my program it shows the error message

CODE:

Reporting details: This error report includes information regarding the condition of WindowsApplication1. When the problem occurred the operating system version and computer hardware is use; your Digital Product ID, which could be used to identify your license; and the Internet Protocol(IP) anddress of your computer.

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PerformClick() Doesn't Work - How To Make It Work

Feb 2, 2011

I have an application that requires data be entered, and after entering, a button is clicked to process that data. Clicking the button works just as it should--the data is processed properly. In constructing a test module, I provide a set of data values, followed by:

btnWhatever.PerformClick()

Nothing happens. I have used this syntax for years, and it has always worked flawlessly. I have triple checked everything else and isolated the problem to the failure of the PerformClick(). The PerformClick() is in a test subroutine that does nothing but fill textboxes and labels with default data, then calls the PerformClick() on the button to begin processing. Again, the button works fine, the data is entered as it should be, but the PerformClick() does not fire the click event.

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File I/O And Registry :: Error Is Coming Registry Access Is Not Allowed.While Opening A Key

Jan 21, 2009

Error is coming Registry Access is not allowed.While Opening a Key.

Code:
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
NewDelete("HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionRun", "Sonia")
End Sub

[CODE]...

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Reading Registry Key With + In Name?

May 17, 2012

I'm having troubles reading the values from a registy key, basically I already have my code working which reads back data from a registry key with the name "data" however I also have another key called "data+" and when I attempt to read that the "+" get ignored and it reads back "data" which is in the same location. I have no power of changing the reg key, do I need to convert the + into hex or something like that, if so how do I that and then read it back?

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Reading Registry Value?

Mar 15, 2011

I thought this was simple so i guess i am doing something wrong. want to read the value of an item in the registry.the value im after is the centralprofile key which im trying to get by passing the SID and looking up the subkey but it never returns anything.

my code
Function getprofilepath(ByVal SID As String) As String
Try

[code].....

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.net - Datagridview Doesn't Work

Sep 13, 2010

Possible Duplicate: Datagridview doesnt work! I have written code to show records in a datagridview but it shows nothing. I have tried to debug & when it step into GetData function following codes

Catch ex As Exception
returnData = Nothing
If connection.State = ConnectionState.Open Then
connection.Close()
End If

become gray & it shows error sign. When I take my mouse pointer on it it shows message. It says "Cannot open database SUIMT requested by the login. The login failed. Login failed for user 'MY-PCJames'".

Imports System.Data.SqlClient
Public Class Form34
Private Const ConnectionString As String = "Server=.SQLEXPRESS;" & _
"Database=SUIMT;Trusted_Connection=True"

[code]....

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.net - VB 2 Streamreaders, One Doesn't Work?

Oct 11, 2011

So I have 2 data files, single dimension, that I'm trying to populate two rtb. If I comment one streamreader out the other will print. This also works in the vise versa situation. Does anybody see where I'm going wrong with this? They won't run together.

Dim Alpha As New System.IO.StreamReader("alpha.dat")
Dim Beta As New System.IO.StreamReader("beta.dat")
Dim strLine As String

[code].....

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.NET: Why Doesn't This Nullable Work

Dec 15, 2010

dim str as nullable(of string) is this syntax incorrect?

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AxAcroPDF Doesn't Work When Using MDI?

Nov 26, 2010

i'm working on a MDI application and need to view a ".PDF" files in a MDI child form, but when using the AxAcroPDF control it doesent work, note that it works fine when viewing the form separately from the MDI application.

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Backgroundworker Doesn't Work?

Aug 21, 2011

this is my code:

Private Sub BackgroundWorker1_DoWork(ByVal sender As System.Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles BackgroundWorker1.DoWork
For i = 0 To 1000

[code]....

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Dll Doesn't Work On Any Other Computer

Mar 15, 2012

Has anyone succeeded in creating a class library solution/project in VB.net VS2010 4.0 Net Framework for COM to run on WindowsXP Excel 2003. I created a dll which changed specific data in an excel worksheet. The dll worked just fine on the development computer but wont work on any other. I downloaded .NET 4 framework onto the target PCs and used RegAsm.exe to register both the .dll and .tlb files in the registry. That worked OK and the dll is visible as a reference in excel and can be ticked. The error message I get is RunTime Error -2147024894(80070002): Automation Error The System cannot find the file specified.

I also tried creating a Setup and Deploy project in the original development solution but this created just a vbproj setup file which the target PC cannot read (no VS installed), I hoped the project would create an EXE file I could use. Does anyone know any links that describe how to do this type of stuff as most links I have tried are either for Windows Forms projects are are way above my knowledge. Maybe someone out there has already succeeded with this sort of activity?

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Express DLL Doesn't Work On Other PCs?

May 24, 2012

I have Visual Studio 2010 Express Edition. I'm using it to evaluate functionality before purchasing the real thing, but I'm having trouble. I want to build a DLL that can be used on PCs other than my development PC, that I can call from VBScript.

I follow the hundreds of examples out on the intranet and things still don't work.I have built a simple HelloWorld DLL with a function that returns "Hello World".I've been through all the stuff about making the assembly COM visible, and the threads about Register for COM Interop checkbox missing. One person suggested editing the .vbproj file and adding a tag to turn on Regiser for COM Interop (which was not needed because it was already there).

Anyway, if I build my project and run my VBScript:

Set testdll = CreateObject("HelloWorld.Class1")

wscript.echo testdll.HelloWorld()

Everything works great. But....if I copy the DLL to another PC and register it with RegAsm, the VBScript fails with a "File not found" error on the CreateObject line of the VBScript.

In fact, if I unregister the DLL on my development PC and then register it with RegAsm, the VBScript now fails on my development PC. RegAsm said everything was okay and if I look in the registery using RegEdit, things look good, but it still doesn't work. The only way to get it to work again is to rebuild the DLL (which in turn, registers the DLL).

I'd like to be able to build a DLL which I can be registered and used on other PCs (without requiring those PCs to have Visual Studio 2010 EE and without requiring them to have the source and build the DLL).

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If Statement Doesn't Work Right

Oct 13, 2009

Dim
a As Date? = Nothing
Dim b As Date? = If(a Is Nothing, Nothing, GetValue(a))

I thought b would be Nothing, but it is not...is it a bug?

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IsDBNull Doesn't Work

Dec 3, 2009

I am getting a datarow from my dataset and some columns can be NULL.So I am trying to check for this using the IsDBNull function, but it just won't work. I have tried almost every possible combination. Can someone please explain to me how to use this properly?ser is a datarow and GUID is a column with data type: unique indentifier (so a Sytem.Guid)

user.GUID.Equals(DBNull.Value) Then .GUID = System.Guid.NewGuid
I tried using above, IsDBNull(GUID), guid = dbnull.value, guid is dbnull.value etc etc I am just getting this error: The specified Cast is not valid.

[code].....

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OOP-inherition Doesn't Work?

May 13, 2009

why this code doesn't work?

[Code]...

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Picture Box Doesn't Work

Sep 25, 2009

i made a picture box and the fowling event when my program runs:

[Code]...

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Why Application Doesn't Work

Jan 28, 2012

So basically I made this code below to make my application (when the mouse leaves), go smoothly in an 70% opacity, with a fade.

Private Sub Timer3_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer3.Tick
Me.Opacity = Me.Opacity - 0.05

[code].....

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Me.Close() Doesn't Work - The Form Doesn't Close?

Apr 16, 2009

The form is an About Us form so has nothing on it only a text box and a OK button.

[Code]...

Why won't the button close the form? I'm puzzled, I tried another button just in case with the same result. UPDATE: I set a break point on Me.Close() and it isn't reaching it when I click the button, I created a new button and the same thing happened.

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Reading A Registry Value That Is A Dword

Jul 27, 2009

I'm trying to implement code that can determine the value of a registry key dword value and put a check mark in the checkbox depending on if the key exist, does not exist, or equals ffffffff in hex (4294967295 in Decimal).[code]

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Reading And Writing To 64 Bit Registry?

Sep 20, 2010

I need to read a value (and possibly adjust the value) in HKLMSoftwareMicrosoftWindowsCurrentVersionUninstall key on both 32 and 64 bit systems.I've tried accessing 'stuff' by compiling my widget as both a 32 and 64 bit app, but nothing is working. Then I came across some information indicating that this could be done from a 32 bit applicaiton using KEY_WOW64_64KEY [URL] somehow, but I can't figure it out.

1) Check the existing value of HKLMSoftwareMicrosoftWindowsCurrentVersionUninstall{ProductGUID}DisplayVersion handling both architectures.

2) If the value <> "" And <> Our Current Version Then

3) Write the Current Version to the value mentioned in step 1.

I wouldn't think this is that difficult as I've worked with registry before, but the 64 bit stuff is throwing me for a loop.It would be nice if I could compile my app to target AnyCPU then detect where its running on 32 or 64 bit. The app could then look and update in the appropriate location.I currently am set to use .NET 2.0, but could go to 4.0 if there is something in there that makes the above tasks easier.

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Reading Changeable Value From Registry

Jun 23, 2010

I'm trying to understand how to get a string from the registry. There are a lot of walkthroughs, and information about retrieving known strings, keys. But what about if the value changes or could be unknown? For example, I wrote some values to the registry:

[Code]....

The txt1.Text information will differ so I can't say it is a definite string. The txt1.Text will be created based on information entered into the form and then it is encrypted. It will be unique to that user, but I want to compare the string in the registry key to one in a textbox on the form.

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Reading Data From Registry

Feb 23, 2009

I have been following tutorial from Bort and writed encrypted string to registry with this

[Code]...

Now I want to read that from registry and get the date witch is encrypted to decrypted to textbox so I can compare it to date.today. How can I get that date from registry. I have used this Tutorial: RSA Encryption in VB.NET and tried to get these trial version tutorials to work together.

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Reading Registry And Compare To Another One

Jul 6, 2011

What I need is a method to read the registry (completely) and then compare to another, my reasoning for this is so that I can track the changes that happen through programs to the registry so that I can make them portable so that I can code in vb.net on my flashdrive (not really) but it would be pretty useful.

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