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Editorial Team
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Asked: 2026-05-27T12:48:18+00:00

I have developed a Web Application using ASP.Net with Microsoft Access as database. Now

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I have developed a Web Application using ASP.Net with Microsoft Access as database. Now i have connected to the database using OleDB connection. The problem is when i give the database source in Connection String Source="C:/WebApp/DB/data.mdb". The connection throws an error stating the path is invalid and there is no such file.

I tried using 

Server.MapPath("~/DB/data.mdb")

which gives the path as “C:/WebApp/DB/data.mdb” but throws the same error

Colud not locate file 'C:/WebApp/DB/data.mdb'

What should be the problem, even though if it works good in loalhost when i publish it to the server using Plesk, it shows the same error stating “C:/inetpub/xyx.com/httpdocs/…” not found

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1 Answer

  1. Editorial Team

    Try using the wndows path (backslash rather than forward slash).

    If you are shipping an access database with a web application, you can also investigate putting it in the App_Data folder. Read here for more info.

    A fully worked example is here

    Note that in your current example, if DB is a folder under the web root, anyone could potentially download your database if they know the file name. By default, items stored in App_Data will NOT be served to clients.

    Also note that, usefully, when you store the item in App_Data, your connection string becomes:

    "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|\data.mdb;Persist Security Info=False;"

    (plus any user/password details). ASP.Net will resolve the |DataDirectory| path at runtime.

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