vb.net database connection error

try_it

try_it

@try-it-FdJruy • Oct 22, 2024
"i'm a new user so please don't delete my post if i posted it in wrong community"
i am using visual studio 2010 professional .while running my project ,splash screen run normally but when i tried to login it gives error as follows

"the database g:\.....feemgt.mdf cannot be opened because it is version 655.this server supports 612 and earlier.a downgrade path is not supported.
could not open g:\.....feemgt.mdf.CREATE DATABASE is aborted.
an attempt to attach an auto named database for file g:\.....feemgt.mdf failed. a database with same name exists, or specified file cannot beopened, or it is located on UNC share"

please helppppp as my practical exam is so near ...
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  • PraveenKumar Purushothaman

    PraveenKumar Purushothaman

    @praveenkumar-66Ze92 • May 5, 2012

    #-Link-Snipped-# What is the version of MS SQL Server you are running in your system?
    0
  • PraveenKumar Purushothaman

    PraveenKumar Purushothaman

    @praveenkumar-66Ze92 • May 5, 2012

    WARNING!!! Be sure to back up your ASPNETDB.MDF data before doing this.

    I had the same problem and solved it by deleting the ASPNETDB.MDF and aspnetdb_log.ldf files from the App_Data folder. They get recreated the next time you run your application.

    I was doing this on a proof of concept website and did not have any valuable information saved in the ASPNETDB.MDF database.
    0
  • tmonicrow

    tmonicrow

    @tmonicrow-oNuWAl • Jun 1, 2012

    Dim connetionString As String
    Dim cnn As SqlConnection
    connetionString = "Data Source=ServerName;Initial Catalog=DatabaseName;User ID=UserName;Password=Password"
    cnn = New SqlConnection(connetionString)
    Try
    cnn.Open()
    MsgBox("Connection Open ! ")
    cnn.Close()
    Catch ex As Exception
    MsgBox("Can not open connection ! " & ex)
    End Try
    #-Link-Snipped-#

    try the above code first, then you can anlyse if it is connected or not . If it is not connected then exception will throw. You can learn from exception what happend.

    crow.
    0