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ASP.net  OLE DB Provider was not specified

Posted on 2010-11-22
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Last Modified: 2012-05-10
Hi

I am getting the following error in the code mentioned in the code section at the first line
of the button click event.

An OLE DB Provider was not specified in the ConnectionString.  An example would be, 'Provider=SQLOLEDB;'.

Imports System.Data
Imports System.Data.OleDb
Imports System.Configuration

Public Class _Default
    Inherits System.Web.UI.Page




    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

    End Sub

    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click


        '// define a connection to the database
        Dim cn As New OleDbConnection(ConfigurationManager.ConnectionStrings("WhatEverNameYouWant").ConnectionString)

        '// define the sql statement to execute
        Dim cmd As New OleDbCommand("SELECT * FROM [Contacts]", cn)

        Try

            '// open the connection
            cn.Open()

            '// execute the sql statement
            Using reader As OleDbDataReader = cmd.ExecuteReader(CommandBehavior.CloseConnection)

                While reader.Read()
                    '// this loops through all of the returned records
                End While

            End Using

        Catch ex As Exception

        Finally
            If cn.State <> ConnectionState.Closed Then
                cn.Close()
            End If
        End Try


    End Sub

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Question by:Murray Brown
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6 Comments
 
LVL 52

Expert Comment

by:Carl Tawn
ID: 34190407
Can you post your connection string?
0
 

Author Comment

by:Murray Brown
ID: 34190429
 <connectionStrings>
    <clear />
    <add name="WhatEverNameYouWant" connectionString="Microsoft.ACE.OLEDB.12.0;Data Source=Database\Contacts.accdb;" />
  </connectionStrings>

I took the login and password out. I hope that didn't disrupt things
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LVL 52

Accepted Solution

by:
Carl Tawn earned 2000 total points
ID: 34190453
That connection string should say:

connectionString="Provider=Microsoft.ACE.OLEDB.12.0;Data Source=Database\Contacts.accdb;"
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Author Comment

by:Murray Brown
ID: 34190576
Hi

Thanks. That helped. I am now getting a message in the "Immediate Window" section at the bottom of the screen>\.
A first chance exception of type 'System.ArgumentException' occurred in System.Data.dll
A first chance exception of type 'System.Data.OleDb.OleDbException' occurred in System.Data.dll
A first chance exception of type 'System.Data.OleDb.OleDbException' occurred in System.Data.dll

Is this a separate issue. Should I post it as a new question
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Author Closing Comment

by:Murray Brown
ID: 34190695
Thanks
0
 
LVL 52

Expert Comment

by:Carl Tawn
ID: 34190704
If you add:
Response.Write(ex.Message)[code]
Between these two lines:
[code]
        Catch ex As Exception

        Finally

Open in new window


It should show you what the actual error message is.
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