What would be the code that will connect the Data from MS Access to the Visual Basic in Visual Studio? I am new to Visual Basic.
If you are just looking for the connection you can use this
Dim con As OleDb.OleDbConnection = New OleDb.OleDbConnection("Provider=Microsoft.Jet.Oledb.4.0; Data Source=" & Application.StartupPath & "\database\data.mdb")
I place the data.mdb at custom folder name 'database' in the debug folder of the application.
This is more detailed...
Dim con As New OleDb.OleDbConnection
con.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:\DBName.accdb;Persist Security Info=False;"
Try
con.Open()
Catch ex As Exception
MsgBox(ex.Message)
End Try
Related
I need help my program don't the use connection string that i want instead it find the access file on this folder and display error
Could not find file 'C:\Users\user\Documents\Visual Studio 2008\Projects\Patientt\Patientt\bin\Debug\db_hospital.accdb'.
here is my code
con.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|\db_hospital.accdb"
con.Open()
sql = "SELECT * FROM tblPatients"
ds.Clear()
da = New OleDbDataAdapter(sql, con)
da.Fill(ds)
Me.DataGridView1.DataSource = ds.Tables(0)
con.Close()
Put your access file in the debug folder and change the connection string like this
con.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + Application.StartupPath + "\\db_hospital.accdb"
I am trying to use the OLEDB connection to load my database to my Visual Basic program. However, I am receiving this error:"Could not find installable ISAM."
I am using Microsoft Access Database 2013. As far as I'm aware, 12.0 is the correct version.
This is my code:
Dim con As New OleDb.OleDbConnection
Dim databaseprovider As String
Dim dblocation As String
databaseprovider = "PROVIDER=Microsoft.ACE.OLEDB.12.0;"
dblocation = "Date source = C:\HotelBookingDatabase.accdb"
con.ConnectionString = databaseprovider & dblocation
con.Open()
MsgBox("open")
con.Close()
MsgBox("closed")
Edit - I have changed "Data source..." to "Data Source..." and installed 2007 Office System drivers, but that hasn't helped my cause.
Edit #2 - Looked at the code above again today. I figured out the problem. Instead of "Data Source", my code has "DATE Source". Oops. Updated code, which works:
Dim con As New OleDb.OleDbConnection
Dim dbprovider As String
Dim dbsource As String
dbprovider = "PROVIDER=Microsoft.ACE.OLEDB.12.0;"
dbsource = "Data Source = C:\HotelBookingDatabase.accdb;"
con.ConnectionString = dbprovider & dbsource
con.Open()
MsgBox("ok")
con.Close()
MsgBox("bye")
I have sorted out the problem.
I changed my code to this:
Dim con As New OleDbConnection("Provider=MICROSOFT.ACE.OLEDB.12.0; Data Source=C:\HotelBookingDatabase.accdb")
con.Open()
MsgBox("ok")
con.Close()
MsgBox("bye")
I am trying to connect using vb.net (Visual studio 2013) to an MS Access Database 2007(.accdb) using codes. But something is wrong in my code and i can't figure it out.
the Database name is "localDatabase.accdb"
I didn't put any password on my database
I'm using a 64bit
Thanks in advance!
Here is my code:
Module Module1
Dim conn As New System.Data.Odbc.OdbcConnection
Public Sub ConnectToOdbc()
conn.ConnectionString = Provider=Microsoft.ACE.OLEDB.12.0;Data Source="C:\Users\MyPc\Documents\Visual Studio 2013\Projects\database\localDatabase.accdb"
Try
conn.Open()
Catch ex As Exception
MessageBox.Show("Failed to connect to data source")
Finally
conn.Close()
End Try
End Sub
End Module
this is just a hypothesis..
I am using ACE 12.0 now on my app, and it works fine. the different thing is the code try to use this..
Imports System.Data.OleDb
'instead of obdc
con = New OleDbConnection
con.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source = " & Path.Combine(Application.StartupPath, "YourDatabase.accdb")
'put your .accdb in your app folder
maybe the error is it can't find your .accdb file.
Change this line:
conn.ConnectionString = Provider=Microsoft.ACE.OLEDB.12.0;Data Source="C:\Users\MyPc\Documents\Visual Studio 2013\Projects\database\localDatabase.accdb"
to this:
conn.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Users\MyPc\Documents\Visual Studio 2013\Projects\database\localDatabase.accdb"
ConnectionString as the name tell is a string, so you need to wrap it with double-quotes to be recognized as string by VB compiler.
UPDATE :
Also you need to change the connection object from Odbc to OleDb:
Dim conn As New System.Data.OleDb.OleDbConnection
I am a developer building websites in VB.Net using Visual Studio 2010. I am trying to populate some fields when a user visits a website based on their decisions on a previous screen.
My connection information is as follows:
Dim myDataReader As SqlDataReader
Dim myConnection As SqlConnection
Dim myCommand As SqlCommand
Dim strSQL As String
myConnection = New SqlConnection("Data Source=localhost\sqlexpress; Database=PREP; Integrated Security=SSPI;")
Try
myConnection.Open()
Catch ex As Exception
MsgBox(ex.Message)
End Try
strSQL = "SELECT * FROM Charts where ID=1"
myCommand = New SqlCommand(strSQL, myConnection)
myDataReader = myCommand.ExecuteReader()
If myDataReader.Read() Then
TextBox1.Text = myDataReader.Item("Priority1")
Else
MsgBox("Didn't work...")
End If
The error I continue to get is:
Cannot open database "PREP" by the login. The login failed. Login failed for user 'OR-AA-Me\Me'
I assumed that since it was a local database I would not need a username and password. Am I wrong?
Also, are there glaring practices in the above code that will be unwise when I transport this to a commercial environment?
Thanks!
Solved:
The connection string simply needed additional filepath information.
The successful connection information was:
myConnection = New SqlConnection("Data Source=.\SQLEXPRESS; AttachDbFilename=|DataDirectory|\PREP.mdf; Integrated Security=True; User Instance=True")
There was no need for a username as the Integrated Security set to True assumes that the computer will use the login information for the user on the actual computer he is using.
I want to connect data from any folder in my computer.After user click browse button it appear any location for access database folder.After that user click connect button and but i have facing connection problem.
Under Browser Button
Using ofd As New OpenFileDialog
ofd.Filter = "mdb files |*.mdb"
ofd.Title = "Select File"
ofd.ShowDialog()
TextBox1.Text = ofd.FileName
If ofd.ShowDialog() = Windows.Forms.DialogResult.OK Then
MessageBox.Show("Hang amik " & TextBox1.Text)
End If
End Using
Under connect button
Dim connetionString As String
Dim cnn As OleDbConnection
connetionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source= & TextBox1.Text "
cnn = New OleDbConnection(connetionString)
Try
cnn.Open()
MsgBox("Connection Open ! ")
cnn.Close()
Catch ex As Exception
MsgBox("Can not open connection ! ")
End Try
My main problem what code must inserted for connecting to database?
Data Source= & TextBox1.Text
My code not work.
Using Visual Studio 2010.vb.net.Thank You Very Much.
Fix:
connetionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & TextBox1.Text
Use String.Format to best improve usability in build string with variables.