I use VB.NET 2010 and an Access DB for little Data-Access. On my developer PC everything works fine.
On the client machine, I get the following error: System.Data.OleDb.OleDbException (0x80040E4D): Keine Fehlermeldung verfügbar, Fehlercode: DB_SEC_E_AUTH_FAILED(0x80040E4D). (No exeption avaiable).
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I have a program in VB.NET 2005. At some point I have to open an Access2003-Application for getting data in it. I do that by pretending my program is a human user and let it do all the work in Access as a human user would do. Filling Fields, pressing buttons etc. I use the Primary Interop Assemblies for that. So far so good. That code is in use for over half a year now. In the last week I got Office 2007 installed on my machine. Of course I tested the installed version of my program if everthing still works. Every test was succesfull. But if I do the same tests in Visual Studio it always crashes.
All I get is this Errormessage: {"Das COM-Objekt des Typs "Microsoft.Office.Interop.Access.FormClass" kann nicht in den Schnittstellentyp "Microsoft.Office.Interop.Access._Form3" umgewandelt werden. Dieser Vorgang konnte nicht durchgefhrt werden, da der QueryInterface-Aufruf an die COM-Komponente fr die Schnittstelle mit der IID "{66B22FB4-F70E-4F03-A00A-F76E9ADBBF10}" aufgrund des folgenden Fehlers nicht durchgefhrt werden konnte: Schnittstelle nicht untersttzt (Ausnahme von HRESULT: 0x80004002 (E_NOINTERFACE))."}
For all who can't read german:
"Microsoft.Office.Interop.Access.FormClass" can't be converted in to "Microsoft.Office.Interop.Access._Form3" ... Interface is not supported.
Code I use:
Dim access As Microsoft.Office.Interop.Access.Application = Nothing
.
.
.
access = New Microsoft.Office.Interop.Access.Application()
[CODE]...
The Error occurs when I try to access any property of "access.Forms("frmTest")"
(using VB2008) I am trying to automate Access from VB.Net. To do this, I added two libraries to my project, Microsoft.Office Interop.Access v12.0.0.0, and dao v10.0.4504.0. This seems to give me all the necessary commands, yet when I tried to open up an Access database via the following code:
CODE:
I'm trying to update data to a Access data base using the following [code]...
View 3 RepliesThis is not a homework of mine and i had never tried ms access database with vb so i just gave it a shot. so this is my first time and i am just trying not asking anyone to complete my homework. I have been searching for this a lot on internet but couldn't find a solution to this so i decided to ask this question here.
i have this sql code. what i want to do is that create a basic login form where users puts it's username in the UsernameTextbox and Password in the PasswordTextbox. If the the information match then a message box appears saying that the user is valid and if the information does not exist, a mesage box appears saying the users is not valid. now everytime i execute(run) the code, i come up with this error: Syntax error (missing operator) in query expression ''UserName' = 'Admin' 'PassWord' = 'testing123''.
The field names(UserName, PassWord) are also correct they are same as in the database. the information put in the username and password textbox are correct and they match the information on the database. But i dont know why this error comes up.
My code module is the following:
Imports System.Data.OleDb
Public Class LoginForm1
' Cancel button
Private Sub Cancel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Cancel.Click
Me.Close()
End Sub
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this is my code for adding users in my database but it has an error on the INSERT INTO statement.here is the error: Microsoft office access database engine: syntax error in INSERT INTO statement.
vb.net
Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
Dim conn As New OleDbConnection(cn)
Dim check As Integer
[code]....
It shows up in the services database and when I try and start it I receive a Access denied Error 5 error.I've tried using the local system account to run the serivce and an administrator account. Neither work. I also tried adding the local serivce account and the system acount as owners, also without success
View 1 RepliesI am trying to utilize the access database, but I'm getting an error message: Value cannot be null. Parameter name: dataSet
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That's the code I'm using, why I'm getting this error?
I am using VB .Net to connect to an access databse when using several connection sometimes i get this erro "unspecified error microsoft jet database engine" even though i am an administrator on my local machine.
View 1 RepliesPreview Access SQL COMException 'm fairly new to VB.NET and I'm having difficulties performing a basic Access SQL statement.I'm trying to delete content the contents from the table but it keeps erroring out on me.
View 2 RepliesI have an Access project where I want a label to be showed when a form is opened only if a query returns a result.
I have the following code:
Private Sub Form_Load()
Dim stSQL As String
Dim db As DAO.Database
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I am trying to Read a text file from vb.net and then write it to microsoft access. The following is the codes that i have written for this project.
However, there are errors stated:
1. error in inserting record
2. Warning 1 Variable 'DoCmd' is used before it has been assigned a value. A null reference exception could result at runtime. C:Documents and Settings�74958XDesktop6jun[updated]6junForm1.vb 63 9 6jun[code]....
I had an exercise where I was supposed to have a button open an openfile dialog box, let the user select a file, then another button that would save the file with the extension ".bak". The author didn't give any clues about manipulating extensions -- but a few chapters back we covered string functions. So, with that in mind, I did the following...
Private Sub btnSaveFile_Click(sender As System.Object, e As System.EventArgs) Handles btnSaveFile.Click
' Where does the extension start
[code].....
I created an vb.net Application with microsoft visual studio 2008 and Access 2003 as Database.
The application work fine in XP O/s but when i run the application in Windows 7 it gives error when connecting to Database.
It works fine when i create an new Access 2003 database in Window 7.
It gives error System.Data.OleDb.OleDbException: Operation must use an updateable query.
I am using following code to add my application to StartUp of Windows. It works well in XP but gives error in Vista that you donot have permission to edit registty file.[code]
View 1 RepliesOkay so i have set up a database connection and got my combo box to fill from my table but it only fills with the first 4 records even though there are 5. There will be even more records depending on how many bookings are made so i need it to fill with all the records [code]...
View 3 RepliesWell here I am again, could really use some expert eyes on this. I've got an update statement for access 2007 and when I run it it's giving me a "No value given for one or more required parameters." error. I've spent at least 2 hours on this now and searched all over the place and none of the suggestions I found are fixing it. I've got an insert statement to the same table that works fine, I took this same syntax for the update statement from another project where it was working perfectly. I've verified the spelling of the table and column names, As best as I can tell there are no reserved keywords being used and I've eliminated any spacing from the names. I've even tried updating a single row with no variables, just like for like data directly from the table and it still throws the error.
Code:
Dim DAEdit As New OleDbDataAdapter
Dim update As New OleDbCommand("UPDATE ActiveContracts " & _
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In all the years that I've been coding I have never come accross this issue or error. For the past 3 months I have been working on two separate apps. Initialy I started out with Win Vista and things were going great except for how slow my comp was running. So I reinstalled the Vista OS. Everything was going great until Mar 7th when this error just started occuring within my code.
"Access to the registry key 'HKEY_CURRENT_USERSoftwareTornadoAppsSwift BudgetUser' is denied"
TornadoApps/Swift Budget are strings created upon App install or first run of App in VB 2008.The User value along with 9 other values were all working fine prior to Mar 7th.Now this line along with many others like it with defferent strings and values were working just fine till this week. So i figured that I'd just upgrade to Win7 hoping that would fix it. IT didn't. So I reformatted and installed fresh Win7 and still have the error. So I have figured out that it isn't my OS. Cuase it was working in Vista then just quit working.
when this button is click, it will retrieve all the records in different fields in MS Access 2007 and display onto the RichTextBox. But when i run the code and press the retrieve button, an error occurs. (NullReferenceException was unhandled. Object reference not set to an instance of an object.) Plus im sure my code to display records on richtextbox is wrong as i created another project purely with a button and a richtextbox, only the last field in access is displayed.
Imports System.Data.OleDb
Public Class Form1
Inherits System.Windows.Forms.Form
[code]......
What i've written opens an Access database and one can read and write into it (on a table called Journal)It does indeed work for newly made Access files. However it doesnt work with a specific Microsoft Access database (again .mdb) which was made with a very old Access, like Access 2000 or something.The error message is: Syntax error in INSERT INTO statement.Inside the zipped file below you will find the source code of the program, along with an access file that the program CAN read, and the one access file that i NEED the program to reed but it cannot!
To see what i mean run the program one, try to add a new line to the database. you get an error!now rename the Journal.mdb to "journal.bak.mdb. And the journal_working.mdb to Journal.mdb try to add a new line to the database again without altering the source code at all. it succeeds now!!
NOTE: the program can READ data from both files. but it CANT write data to the old access file
this is the code:
Dim cb As New OleDb.OleDbCommandBuilder(da)
Dim dsNewRow As DataRow
dsNewRow = ds.Tables("AddressBook").NewRow()
dsNewRow.Item(1) = txtFirstName.Text 'or .Item(1) =
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Error with Detecting Duplicates in Access DB?
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File Access Error (by another process)
View 5 Repliesim trying to search my hard drive for jpg files and it works great except for when it hits a system file, i have admin access. I tried try/catch but it didn't work for me. All i need it to do is skip that file that is denied access. [Code]
View 4 Replies"An UPDATE or DELETE query cannot contain a multi-valued field." That is the error I am getting for the table adapter's update all:
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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]
View 5 RepliesI get an error "type access.application is not defined".I have Imports icrosoft.Office.Interop.Accessand I have Microsoft Access 11.0 Object Library installed as a Com Reference.Other References I have installed are:Microsoft ActiveX Data Objects 2.7 LibraryMicrosoft Office 11.0 Object LibraryMicrosfot Visual Basic for Applications xtensibility 5.3I'm running VS2008The code is: ImportsMicrosoft.Office.Interop
View 7 RepliesI am using VS 2008 Professional and connecting to an Access 2003 database.I have converted my app from VS 2003 to VS 2008.I have kept all the OleDbDataAdpaters.When designing,I like to have both VS and Access open, so I can see if my SQL queries and other code load/ edit/ append/delete the data correctly.The problem I am having, is once I open Access, I can no longer edit any of my database settings in VS. Examples:In VS I open the Server Explorer, and see the database I am using.I double click on it, and I get the error message "Unspecified Error".In VS I try to add a DataSource.In the Data Source Configuration Window, in the Choose a Data Source Type pane, I select Database and click on Next.When I see Choose Your Data Connection, I select my database, and I get "Failed to open a connection to the database "Unspecified Error" Check the connection and try again."In VS I try to configure the OleDbDataAdpater, I right click on it and get the Data Adapter Configuration Wizard window, in the Choose your Data Connection pane, I select my database, and I get "Failed to open a connection to the database "Unspecified Error" Check the connection and try again."If I run/debug my app, the data loads just fine. So I know the data is not messed up, and the connection is OK. I just have problems when I am designing in VS 2008 and after I have opened Access 2003. If I close Access, the problem does not go away. To get the problem to go away, I need to : close Access,close VS, open VS,load a new project,Add a new Data Source to the new project,re-open my project.What is happening? Is there a better way to "reset" VS ?
View 1 RepliesThis is my code:
Cmd.CommandText = "INSERT INTO Users(Username,Password,ServerLink) VALUES('" + Username + "','" + Password + "','" + ServerLink + "')"
Cmd.Parameters.Clear()
con.Open()
Cmd.ExecuteNonQuery()
Con.Close()
I'm using the "Add New Data Source" wizard in Visual Studio 2008 to connect to an Access database ".accdb" but I keep getting an error message when I try to finish the wizard.... "Custom Tool Error: Failed to generate code. 0 is not a valid value for Int32. Input string was not in correct format." this is my first time working with VB in conjunction with MS Access.
View 7 RepliesI'm trying to link a datatable from one access db to another access db but i get this error:Arguments are of the wrong type, are out of acceptable range, or are in conflict with one another.
this is my code:
Sub CreateLinkedAccessTable(ByVal strDBLinkFrom As String, _
ByVal strDBLinkTo As String, _
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