Connection String To Connect To .MDF


Answer :

If you're using the *.mdf file in the App_Data folder of an ASP.NET app you can use this.




Server=.\SQLExpress;AttachDbFilename=|DataDirectory|mydbfile.mdf;Database=dbname; Trusted_Connection=Yes;




If it's not an ASP.NET application don't use the DataDirectory syntax and just use the full c:\... path.



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