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.
View 1 RepliesI have a simple scraper. It works on some websites, but on some there is this Error:
Quote:
IOException was unhandled Unable to read data from the transport connection: The connection was closed
It is occuring at "Dim htmlresults As String = Urlcontents.ReadToEnd()".
'Create the HttpWebRequest object
Dim req As HttpWebRequest = WebRequest.Create(URL)
'Set the timeout to 1 second (or 1,000 milliseconds)
req.Timeout = 10000
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i know oledb is not supported in 64b. I have read the application must to be compiled in x86. But it doesnt work.
As i said:
-windows 7 64b
-vb.net in visual studio 2008
-office 2003
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.
How can i make ms access and vb.net program setup compatible with windows 7. my program setup give oledb connection error in windows 7 but it successfully run in xp.
View 4 RepliesMy program involves accessing a print preview dialog.
It works just fine the first time. However, when I close the printpreviewdialog and then try to open it again (through the button) in the same run
then I get a "cannot access a disposed object" runtime error. Hence, it can only work once during a program run.
I am working on a signout system I have a good start but am trying to solve a small problem.Signing out equipment I fill part of a form with student data from the dataset with Fillby, fill the other half with equipment data using Fillby1 I then save this combined data to my Access 2007 Database using a OleDb.OleDbConnection.
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I'm working on a project that getting infos from an Excel book. I've created an Excel book (called as "Kitap1.xls"), entered some infos and created a table (called as "asd") Then I added a DataGrid object on Form1 and codes setteled below; [code]Program is running but the infos ,which in the excel book, do not appearing in DataGrid1 object.
View 11 RepliesI have a windows service I created that checks for data to post to an off site webservice over SSL. The service checks every 10 seconds for data to send, if there is data it opens a connection to the remote webservice, and closes the connection after 120 seconds (still checking for data to send during this time). The service works fine if a user is RDP'd into the server, but as soon as no one is logged on and the service attempts to push data, I receive the following error:"The underlying connection was closed: An unexpected error occurred on a send."I have tried running the service as a local service, network service, under my login, and under a service account, but nothing seems to work. The PC it is running on is a windows 2003 server (virtualized - vmware)
Protected Overrides Function GetWebRequest(ByVal Uri As Uri) As System.Net.WebRequest Dim oWebrequest As System.Net.HttpWebRequest = MyBase.GetWebRequest(Uri) oWebrequest.KeepAlive = False oWebrequest.ConnectionGroupName = Guid.NewGuid.ToString oWebrequest.ProtocolVersion =
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I created a vb form application that I want to query a SQL Server database that is hosted through godaddy. Below I have my function that calls the db and also my connection string in my app.config file. When it tries to open the connection I get the following: {"A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)"}. Do I have to set something on the godaddy end to allow a connection? Or can I only access the database from a web page on my site? [Code]
View 2 RepliesI have no experience with VS 2008 Express yet. But, I need to use it to make a small VB app for work that connects to an Access database and gets table values.I have no samples to work from. I keep getting the error: Type 'ADODB.Connection' is not defined. How do I create the reference to ActiveX Data Object?
View 2 Repliesthe next issue, that is only shown when the server is a Windows server 2008 machine , this is the information that I've found
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i have an application. which is executed after every 5 mins. i have an open connection but it gives me the following error:
ExecuteScalar requires an open and available Connection. The connection's current state is closed.
my code is something like this. I have shown where all i am using ExceuteScalar()
Sub Main()
Try
connection.open()
cmd.ExecuteScalar()
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I'm doing a simple database thru VS2008 and Msaccess without using any builtin relationship between records, now i need to know how i can retrieve specific data from access using the oledbadapter or any, example seek if the value from the textbox1.text is already existing in msaccess table then msgbox "Record already exists.", note that the code is in keypress event of the textbox1.
View 2 RepliesI have attached Database to my vb.net application. Client has sql server 2008 express installed.I built my application and gave to him. he is encountering errors.
PHP
"Data Source=.SQLExpress;Database=xx.mdf;Trusted_Connection=True;Integrated Security=False"
i am getting Cannot Open Database for requested Login. Login Failed. i am using SQL 2008 server Developer edition. And using Windows Authentication mode.
Code:
Dim cn As New ADODB.Connection()
cn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:BackupEon of LightEon Of Light.mdb"
[code]....
' This code not Working :('Error Messege in md.Save()
This will happen at random, and I can always just catch the error and re-establish connection to the server, but I am confused as to why. When doing lots of inserting into the sql server, I only establish one connection that is public, instead of many little connections. I had my doubts on a public sql connection, but it's been running great, and I've seen no problems until this morning. Again, this random moment I hit an error that stated, sql connection state is broken. Is it bad practice to just accept this error, and when it happens, re-establish the connection?
View 7 RepliesError message receiving A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) The project is written in VB.Net 2008. Production server uses SQL 2008, Dev Server uses SQL 2000. The application has been built and published.
Prod Connection String: strCN = "server=SGMAGNCPQ03.;Initial Catalog=APO_Tax;Integrated Security=True"
Dev Connection String: strCN = "server=S04423711940995.;Initial Catalog=APO_Tax;Integrated Security=True"
The Problem: When I change the connect string from dev back to prod and try to run my app, I get the above error message. If I reboot everything works fine but if I switch the connect string from prod to dev and try to go back to prod, I'm back to the same problem.
I have a program that sends some data on a networkstream through a tcp connection.
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My code works fine under xp pro but not under windows 7 ?System.Net.Sockets.SocketException = {"The system detected an invalid pointer address in attempting to use a pointer argument in a call"}
View 1 Repliesthis error when i open my program in windows XP ....
View 2 Replieswhen I attempt to make the connection through a VB.Net with window application, I am getting the following error: ERROR [28000]
My connection string is
HTML
<connectionStrings>
<add name="MyConnection" connectionString="Driver=PostgreSQL ANSI;Server=10.146.152.23;Port=5432;Database=pacs;Uid=postgres;Pwd=postgres;" />
</connectionStrings>
<system.diagnostics>
I wrote the programme with vs2008 and access 2007,i built its setup.when i execute my setup on winxp ,its true,but when i execute it on win 7 ,when i want to save my data i have an error.
View 1 RepliesI packaged a VB 6.0 application using the Package and Deployment Wizard. After that I executed setup.exe in the package to setup the application. On Windows Server 2008 (32 bits), however, I received the following error when processing the setup:
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I'm trying to program in a true object oriented manner and its causing me to re-learn a few things. Specifically, I'm having some trouble with error handling. I have all of my data access being performed by an adapter class in a seperate project. I can catch duplicate records without any problems, but I want to be able to send a message back to the user. Here's what I have so far:
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I created an application with some Crystal Reports. I published the application and installed it on the machine which is my develop machine. This machine has Vista on it and is runnig the application 100%. When I install it on a different machine with windows XP, it runs fine until it tries to load the mybase.new. It generates a windows error with no description.
This is a system generated sub:
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I have a windows 7 computer with vb 2008 express on it. it works really well, except only one thing. when I try to debug an application ( usually windows forms), it produces a run-time error saying: Error while trying to run project; unable to start debugging.
View 2 RepliesI have sent out software created with VB2008 Express and everything has installed correctly on my PC which is running windows vista. But they can't get it to install, one is running XP the other Vista, they get the following errors
Windows XP
Microsoft.VisualBasic.Powerpacks.Vs Version 9.0.0.0. to be installed in the Global Assembly Cache
Windows Vista
system.windows.forms.data visualization version 3.5.0.0 be installed in the global assembley cache first
When I attempt to drag a WMP control from the toolbox this error arises: [code]Has anyone had this problem? I was able to add this component previously, however this was on my desktop computer.
View 1 Replieshow we use inner join in oledb( acces ) ? this is false :
cmd = New OleDbCommand("select lesson_name as ,lesson_type from choice inner join present on choice.p_code=present.p_code inner join lesson on lesson.lesson_code=present.lesson_code
and this:
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