Connecting To An SQL Database Using Wizard?
Apr 27, 2012
I have created an SQL Server 2012 database using the Server Managment studio and I want to connect to in in VB2010. When I run the connection wizard and locate the .mdf file it always tells me that the file is in use and to close any programs that have it open.
However VB is the only program I have open so I am not sure why it is telling me this order how to overcome it.I have tried creating a different database the same way to see if that help but it doesnt.
Is there something I might be missing in the creation of my SQL db that might be causing it?
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Dec 29, 2007
I am a brand new user of MS Visual Basic 2005 Express and MS SQL Server 2005 Express. I have familiarized myself with both programs but have one extremely frustrating problem. Once I open SQL Server, I can not establish a database connection from Visual Basic using the Visual Basic Data Source Configuration Wizard (even if I close SQL Server). If I reboot and open Visual Basic first, I can then connect using the Visual Basic Data Source Configuration Wizard. But then I can not switch to SQL Server and open the database (even if I close Visual Basic). Again, I must reboot to open the database in SQL Server.I suspect there is a setting somewhere that needs to be changed, but I can not find it?
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Feb 28, 2008
I am Wajahat and I am a VB .net novice. I am unable to connect vb .net to database because my wizard is not working properly. When I Click on Add New Data Source ---> Database ---> New Connection, no dialogue box appears asking for the database source.Secondly, When I try to click on "Connect to Database" in Database Explorer, an error message pop ups saying "The event log is full"..I know no alternative to connect vb .net to a database. Please help me sort this problem out.
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Nov 14, 2005
I have the RTM version installed. I am quite puzzled at this wizard. It works fine with SqlClient. But for Access databases, this wizard completely fails.In this wizard, I only have one option to do - setting the ConnectionString. [code]
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Dec 15, 2010
Should I run a classic VB6 app thru the upgrade wizard in VS08 or should I re-design it from scratch. The database is a mess. Originally designed in ACCESS and imported to MS SQL SERVER. The main entities are e.g. ROLLER_SKATES and RENTALS. If you would like to rent a pair of roller skates you can. So this more or less comprises an Inventory system for the roller skates. Now you have 2 different skating rings. Skate-B1 and Skate-Z9, and you keep redundant and duplicate data from the previously mentioned entities in the skating ring tables as well.It's a nightmare.
At least the tables have row ID's. But no explicit foreign keys, just implicit columns identically named that "seem" to correspond to each other. But the rest of the table's attributes all default to NULL. Considering what C.J Date says about Types in his book SQL and the Relation Model, isn't it desirable to have CHECK CONSTRAINTS on attributes?
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Jun 27, 2011
I basically want to make this in my application, so our technicians have an easier time installing our software. So far, I made a form with 4 text boxes: Server name, user name, password, and a combo-box to select a database.Everything was pretty easy until the database selection code. Microsoft's wizard is very efficient, there's no wait time when the database combo box is being filled.[code]That code gets the databases just fine, but obviously if an exception happens the whole screen locks up and it might take a while to recover depending on what the database error is. My question is, can I make mine just as cool/efficient as Microsoft's?
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Oct 12, 2010
i make a connection with SQL server 2005 database using Wizard in Express Edition 2008,I have got data in my text field using dataset , but now I want to execute query for insert, select and update but I don't know my connection vaiable and how to execute query and get data .what kind of connection is this Adodb or oledb etc
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Apr 6, 2010
I used the wizard to create a datagridview and then binded a grid to an access table.Data show up fine..But I can't dete records via the bindingnavigator.Hit the delete button then hit the save button ?Data does not get updated in the backend database.My properties are set to true for adding and deleting.
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Dec 9, 2009
I am trying out the Visual Studio 2008 Standard Edition Setup and Deployment - Setup Wizard on a very simple VB 2008 app which includes a simple SQL Express dB. The build works fine and it installs on the target system ok. But when I go to run the application and add a new record for example, I get a "read-only" error indicating that the sql db is read-only. Yet none of the files in the folder are read-only. What is odd is that the folder that it was installed into "acts" like it is read only, yet it is not identified as such. If I move the .exe and db files out of that folder, (onto the desktop for example) it works just fine. Should I set up a post build event or something to make
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Feb 14, 2011
I'm trying to write a method in VB.net so that when I click a button it queries the database and returns all the values which match a textbox which is located next to the button. I have no idea how to do this, I assume in the onclick method for the button I will need to pull in the value from the textbox, connect to the database and display the results to a gridview?
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Jun 22, 2010
I have a database in the same workspace, I've tried to connect to this DB using this codes :
[Code]...
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Jun 5, 2011
I got vb.net 2008 express and sql server 2005 and 2008 express editions whic I downloaded from microsoft website.Now I just want to connect vb.net with sql server 20o5 or 2008.I am using a connection string as
PubConnstring = "Data Source=RAMANSQLEXPRESS;Database=FirmTest11;Trusted_Connection=Yes"
'Create your connection object
Dim objconnection As ADODB.Connection
Dim strSQL As String
[code]....
Getting Error : [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified.
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Apr 14, 2011
I'm having problems connecting to a database. I have sql server 2005 express installed on my PC, and i am using the following to code to connect to it.
Dim nwindConn As SqlConnection = New SqlConnection("Data Source=localhostSQLExpress;Initial Catalog=northwnd;" & _
"Integrated Security=SSPI")
[code].....
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Jun 2, 2010
Ok I'm finally getting to put on big boy pants and have now moved beyond doing everything in Access (yay me).o here is the problem, can't connect to the Server. created a test button on my form, which is what I usually do with Access so Ican be sure everything is where it needs to be pointing.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim connetionString As String
[code]....
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Sep 21, 2010
is it possible to connect to a database residing on a website (eg., MS Access)to get/update data.can we do it by a VB.net windows application.
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Mar 25, 2011
Dim con As New System.Data.SqlClient.SqlConnection
con.ConnectionString = "Server=iraq\sqlexpress ; Database=stats ; Trusted_Connection=True ;"
Dim com As New System.Data.SqlClient.SqlCommand
com.CommandText = "insert into users values('" & TextBox1.Text & "','" & TextBox2.Text & "','" & TextBox3.Text & "')"
[Code]...
There are new events happen when i adjust the connection string
con.ConnectionString = "Data Source=.SQLEXPRESS;AttachDbFilename=C:Documents and SettingsAdministratorMy DocumentsVisual Studio 2005WebSitesWebSite2App_Datastats.mdf;Integrated Security=True;User Instance=True"
show me error with com.ExecuteNonQuery()
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Feb 8, 2012
I am a wannabe programmer but quite new, started with VB.net about 1 month ago.I write on this forum because It's the first time that I'm actually stuck. The problem is I cannot find a way to connect to SQL server database I have created and saved earlier on my HD using visual express 2010. I want to find a way to connect using code, not by click and drop. I just hope you won't find my issue too trivial to even answer it.The project is very simple, it just consists of a button that should connect to the db on click.[code]
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Apr 7, 2011
Today is my first day trying to use Oracle databases in Asp.NET so I have no idea of what I need to do. I have added this code
[Code]....
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Mar 8, 2012
I use VB.NET 2010 Express and Windows 7. Access is not installed.The code used to connect database password protected, is:
Public Class Form1
Dim cn As OleDb.OleDbConnection
Dim cmd As OleDb.OleDbCommand
The code is not working. I get this error: "Could not find installable ISAM".
NB: The error occurs only if the database is password protected!For unprotected database, code works without error.
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Mar 15, 2012
My code is:
CODE:
It works for a database without password. But for a database with password and the string: "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:DBB.mdb;Jet OLDB:Database Password=xxx"
I get an error:"Object reference not set to an instance of an object." Where wrong?
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Apr 1, 2010
i'm fairly new to VB and am doing my second system through it. I am at the point where i want to link a combobox on my form to my access database so that when i click the dropdown arrow a list of surnames from the particular table in my access database appears.
[Code]...
First things first is this code remotely close to doing what i want it to do? I have to use an access database and i am familiar with this particular method of connecting to the database (sending any data to it is easy now). Secondly when the form opens (since the sub is called at load) i get the annoying old "object reference not set to an instance of an object" message.
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Feb 17, 2010
I have a database(.sdf file) in ppc folder - Storage CardProgram FilesEmpEmployee.sdf. I want to connect this file with sql express 2005. I use this code
Dim Con as new sqlconnection
Con = New SqlConnection("Data Source= 192.168.55.101Storage CardProgram FilesEmpEmployee.sdf;Password = 12345;Integrated Security=SSPI")
[code].....
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May 30, 2010
I have a problem in connecting in access database in vb .net.
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Jan 11, 2010
i want to share my ms access database in other computer using LAN so that they have they same database. it is possible?? or any idea that is easier than this?.. my program is just like this. i created a program called ordering system.. the 1st computer will save the orders of the customer and the 2nd computer will retrieve the orders of the customer..
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Nov 25, 2010
Public Class Form1
Dim con As New OleDb.OleDbConnection
Dim dprovider, dsource As String
Dim ds As New DataSet
[code]....
The code above can access the database but it refuses to add,update,or delete any records..
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Feb 15, 2012
we know that in Visual Studio, you can open a different kind of database: like: Access, SQL server or file, Oracle. is there any reference that you'v know on how to make that kind of program? i don't know where to start.
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Apr 6, 2012
I am trying to make make a database in vb.net but I am having troble I want to have a form that a user could add and edit columns and rows to the tables in my database. Now a sevice based database would not work on my computer because i did not know how to set up the correct sql sever for vb.net 2008 so I used a Local SQL database i have tried to write some code to connect to it.
i will need further help on try to add the controls to edit the database but i will attempt that befor eposting for help. so here is my connection code i am trying to use a data grid to alow the data base to be edited.
also do I need to add the QNA table to data souces for it to be accessed ?[CODE...]
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Jun 21, 2010
I think I already know the answer to this, but just to be sure, is there any way to connect to a MySQL database in VB?
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Jun 14, 2010
I have a VB.NET application and I need it to be able to display rows from a MySQL database. How would I do this?
Update: Another thing that I could do is have the app get a PHP page from the site that shows the DB, and gets the page every 10 seconds or so.
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Oct 8, 2008
I have a VB.net program connecting to an Access database. I use ADODB as connection (force of habit, I suppose). The program runs fine on all my machines, but on some of the client machines I get an error on the connection to Access. It is intermittent (sometimes runs without any problems) and happens at different places in the code, but always at the connection with the database. The program connects and closes connections quite a few times during a calculation.
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