EXE Failed To Connect SQL DB?
Jul 29, 2011
On my machine, I have created an application Safety.exe in VB.net framework 2.0. It is connecting to SQL SERVER database. On my same machine, It works fine when I run shortcut or from the application bin folder but same EXE does not work when I copied to any other location (Desktop or Startup folder). It throws an error
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)
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Mar 18, 2010
I developed a simple ASP.NET app, it was working fine, but now I can't get user info; I am getting this message:The remote server returned an error: (417) Expectation failed.
and here's the code I'm using:
Dim FBUser As Facebook.Schema.user = Nothing
Dim connectSession As Facebook.Session.ConnectSession
[code]......
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Feb 7, 2012
I cannot connect to my local sql server using the following line [Code]. I get login failed for user tedpottel. I have security set to window authority i believed, so my other programs (reporting services and cold fusion do not take in a password. (as long as I log in as tedpottel) So I tried conn = SqlConnection("server=(local);database=by") which said failed for user''.
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Jun 19, 2012
I have a VB.net Application running on the server which will be sending emails close to 200 everyday. Following is my coding:
Dim objNewMail = CreateObject("CDO.Message")
objNewMail.Configuration.Fields.Item("[URL]") = 2
objNewMail.Configuration.Fields.Item("[URL]") = "localhost"
objNewMail.Configuration.Fields.Item("[URL]") = 25
objNewMail.Configuration.Fields.Update()
objNewMail.From = mailFrom
objNewMail.To = mailTO
[Code] .....
The above codes runs inside a loop. The above code runs quite well without any issues. But once or twice a month, I get the following error message and application stops.
System.Runtime.InteropServices.COMException (0x80040213): The transport failed to connect to the server.
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Jul 23, 2011
I'm currently upgrading my sql server from 2005 to 2008 enterprise server. I used VB to connect to the database. It worked fine in the previous version of sql, but when upgrading it seems doesn't recognize my connection string.
Below is my connection string:
myConnection = New SqlConnection("server=RAVY-PCRAVY;uid=;pwd=;database=CIEDC");
myConnection.Open();
Where Ravy-PCRAVY is my server name at the sql server login dialogue box. And I used the windows authentication mode.
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May 8, 2012
I'm using Visual Basic Express 2010 and SQL Express 2008 in Windows XP. At first I couldn't add a datasource (the .mdf file for the database) because of a "Operating system error 32" which I seemed to have resolved by giving myself full permissions for .mdf file (by right clicking on the file and going into properties and then Security) and restarting the SQL SERVER (SQLEXPRESS) service. The dataset for the database is in my solution explorer but when I right click on a table adapter to add a query and attempt to open up the query builder, I get the error in the title above.
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May 8, 2012
I'm using Visual Basic Express 2010 and SQL Express 2008 in Windows XP.I created a database on my local PC HDD. At first I couldn't add a datasource (the .mdf file for the database) because of a "Operating system error 32" which I seemed to have resolved by giving myself full permissions for .mdf file (by right clicking on the file and going into properties and then Security) and restarting the SQL SERVER (SQLEXPRESS) service.The dataset for the database is in my solution explorer but when I right click on a table adapter to add a query and attempt to open up the query builder, I get the error in the title above.
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Jul 28, 2009
I created a typed dataset a day or so ago, then I added a whole bunch of tableadapter/tables with some relationships etc... suddenly out of nowhere it decides my dataset "is not defined". everywhere in my code where i use this dataset now has an error. I tried not to pull out my hair and do a Clean then Rebuild solution... out of nowhere it just refuses to generate code. Object reference not set to an instance of an Object. It would be nice if it was my object so i could find it but it's not.
Curiously I also lost the little database icon on the dataset in the solution explorer.I can still open it in the designer and preview my queries etc... it just wont make the code. it's driving me insane. anyone got a solution?
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Sep 30, 2011
We have a VB.Net application which works fine in our tests in different Windows XP SP3 machines. However there is one machine in which is displaying this error:
Unable to connect to any of the specified MySQL hosts
Using the mysql command, we can successfully connect to the database. We already checked for any other application or firewall that could be blocking the connection but it seems fine. We also reinstalled the system (no errors during the installation) but the MySQL error message doesn't change.
The system settings are exactly the same as in the other computers. We are using "localhost" as server in the connection string. The "hosts" file has its default values (nothing strange in there).
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Jan 16, 2012
I'm working on an application where I'm using an webcam image. I have code that works when using the built in iSight (It's an Apple running boot camp windows 7) camera. However after installing a second USB powered Microsoft Life Cam I am unable to connect to this second camera. When runnign this code I only ever get one input device:
Private Sub LoadDeviceList()
Dim strName As String = Space(100)
Dim strVer As String = Space(100)
[Code].....
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May 29, 2012
I am trying to connect to my remote MySql Database within Visual Studio using the compact framework.
I can successfully add a data source and preview the data within the IDE so assume that the connection is ok regarding Connection strings and remote access.
However, when I attempt to access the data using any run time control I get the following error when the table is loaded using the .fill method.
MySql.Data.MySqlClient.MySqlException was unhandled
ErrorCode=-2147467259
Message="Unable to connect to any of the specified MySQL hosts."
[Code]....
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Mar 15, 2012
I created a SQL DB named MainDB.mdf and a small VB 2010 application with some forms and datasets.Everything was working OK until i got a new computer and re-installed Visual Studio 2010 and SQL server 2010 on it. I copied my DB from the old to the new computer and also copied by VB 2010 project to it. I used Windows Authentication to connect to the DB in the old computer and also in the new one, i am using different Windows user account names though.
I was able to connect to the DB in the new computer in the Server Explorer section, i created a new connection string to the DB and i can seed there is data in the tables. When i run my VB 2010 application created in the old computer get error:
"Cannot open database "MainDB" requested by the login. The login failed. Login failed for user 'D630Admin'."
I need to get rid of that error and be able to add/mod/del data from my DB using my VB application as i used to.
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Jun 5, 2011
when connecting to sql server i get getting this error . please help how to resolve this problem
[Code]..
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 2)
[Code]..
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Aug 15, 2010
I have a code that gets the console text by memory. ut I can't seem to get it to work. the code is suspost to remove the last console text within the game I do know the code is correct but maybe I need something else besides (Int(? here is my code
Public Sub RemoveLastJAHistory()
If Me.PrepareMem Then
Dim lpBuffer As Integer = 0
[code]......
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Apr 10, 2006
.Net application failed to initialize
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Apr 16, 2012
i have installed my program on several computers and it works but for some reason on this one computer it doesn't work.i attached the error log. i can't figure out why it won't run. it installs ok.
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Mar 17, 2011
I am a student a high school and after downloading VBExpress2008 it work fine. When i logged in the next day i tried to start VBExpress but an error occurs saying that vbexpress.exe failed to start. I tried moving the whole visual basic express to a folder but the same error occurs. I do not have enough time to reinstall VBExpress everyday. Is there a way that i can reinstall the .exe file so i can use it?
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Oct 18, 2010
(VB.NET) I get this error as soon as I open the application. It works fine on my machine, but when we installed it on a test machine, we get this error.
46 PM -- An error occurred creating the form. See Exception.InnerException for details. The error is: Retrieving the COM class factory for component with CLSID {857C49E7-ADC6-11D1-98C1-0060948CAA0A} failed due to the following error: 80040154.
at SLSClaimantWorkbook.My.MyProject.MyForms.Create__Instance__[T](T Instance) in 17d14f5c-
[code]....
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Nov 22, 2009
[code]...
If I failed to copy clipboard I would wait 10 seconds and try again. Then it keeps failing.
However, if I try to debug the program or do any human stuff it gets fixed by it self. But I don't want human intervention.
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Dec 1, 2011
I'm trying to fancy up a panel control with some style so I created a class as such.[code]...
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Aug 21, 2011
I have created a web application in ASP.NET using VB.NET as code behind file. I am using a COM object of ProvideX.Script class to connect to Sage MAS90 ERP. Everything was working fine in visual studio 2010. Now when I moved to the deployment phase, the problem gets started. I deployed my application in Windows Server 2008 in IIS7. When I run the application I get the following exception.[code]...
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Aug 18, 2009
I used WNetAddConnection to map with a shared drive on another computer. But when I try to connect, I got an integer returned which is 53. After a while of searching in internet, I know that 53 means the folder is not found. Below are the code and parameters that I used.
<DllImport("mpr.dll", EntryPoint:="WNetAddConnection2A", SetLastError:=True, CharSet:=CharSet.Ansi, ExactSpelling:=True, CallingConvention:=CallingConvention.StdCall)> _
[Code]....
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Jan 5, 2009
I am writing a program to try and centralise alot of data i have on my network so i can use them as templates and guides. My intension was to have an easy to browse program with links in the program which open the particular file (eg. Word document, excel spreadsheet, pdf file etc).I have very limited programming knowledge and in my research i came across this code in VB which allows the program to open the determined file:
Public Class _010101ProgramTemplate
Dim procstart As New ProcessStartInfo("explorer")
Private Sub btnProgTemp01_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnProgTemp01.Click
Dim winDirProgTemp01 As String = System.IO.Path.GetDirectoryName("g:Project Management SystemPMS TemplatesSetupProgramDD-IFC PROGRAM.xls")
[code]....
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Mar 8, 2010
This error message is generated when the ExecuteReader code line is executed in the code below.
Public Shared Function GetCustomer(ByVal customerID As Integer) As Client
Dim client As Client
Dim connection As OleDbConnection = conn_client
[code].....
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Apr 5, 2012
I upgraded a working VB.net windows application from VS2008 to VS2010 (a fairly simple form to process some data) and I get 15 warnings "Load of property 'X' failed" where 'X' refers to what looks like system variables like OutputType, StartObject, RootNamespace, AssemblyName, Option Explicit and so on. I also get two errors pointing to the Form1.Designer.vb file which I is the DesignerGenerated file saying that "My' is not a member of '<Default>'Originally I just used the upgrade wizard, resulting in these warnings. Next I tried creating a new project and adding the relevant files using the VS "Add Existing" function. I have also looked for answers in the forum and on-line but found none. This has got to be something simple I am overlooking.
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Aug 12, 2011
I am trying to create a VB.NET app that will capture failed windows logins without having to read from the security log. I know I can do ManagementEventWatcher and watch forWin32_LogonSession. But this only gives you successful logins. Is there anyway to do this? I figure I am just missing the correct class that will do this.
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Jan 30, 2007
I am writing a very small application in VB.Net 2005.I added a reference to Microsoft.SqlServer.ManagedDTS so I can use a SQL Server 2000 DTS package on SQL Server 2005.I have one form with an Import at the top:
Imports Microsoft.SqlServer.Dts.Runtime ' needed for the DTS package to run
and under a start button I have:
Dim oApp As New Application
Dim oPkg As New Package[code]....
This works fine.The problem I am having is when I run the setup wizard to create a setup.In the build of the setup I get a popup that states:
The following files may have dependencies that cannot be determined automatically. Please confirm that all dependencies have been added to the project. C:winntsystem32msxml6.dll
Then when I run the setup program I get Module C:Program FilesMyCompanyNameSetupSMOmsxml6.dll failed to register, HRESULT -2147023782. Contact your support personnel, I ran regsvr32 msxml6.dll .
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Mar 17, 2009
i have this piece of code (which is part of Unolib)
Private Sub Saveonefile(ByRef fl As Sockets.TcpListener)
Dim Client As Sockets.Socket
Dim name As String
Dim buffer(PacketSize - 1) As Byte
[code]....
there are actually 3 errors, but they are all like this one?
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Feb 15, 2012
I am debugging my companies program that the previous programmer has created. It is buggy and an annoyance in my life and I want to get this done as quickly as possible. Ive already fixed some bugs and published the updated version onto our server. User installs app, login box pops up and prompts user to input username and password. Here is the sql code for logging in:[code]User tries to log in and I get this error; I will put the code for catching the sqlexception then the error I get when a user tries to log in.Now she is in the Employees table and she has access to the application through the EmpGroupPermissions table. when I install it on my computer and try her username and password it succeeds, but when she tries it on her computer it fails, along with any other computer I try it on.
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Nov 11, 2009
Suppose a dll file is referenced by a project. To step into the dll code, I added the corresponding project to the solution.But I found the program still can not go to the internal code of that dll project.
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