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01.31.2008 at 07:03AM PST, ID: 23126390
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Attachment Details

Connection error

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7.6
Zones:

SQL Server 2005, Microsoft Visual C#.Net, Visual Studio

Tags:

C#, SQL Server Express 2005
Hi there,

I have an old project that I have reopened in a new computer. It is a fairly simple c# application using a Sql Express database for storing user account data. Problem is that when I try to connect to the database from within code as below:

string CommandText = string.Format("SELECT * FROM {0} WHERE {1}", TableName, Filter);
SqlCommand command = new SqlCommand(CommandText, Connection);
Connection.Open();

... I get the following error:

Cannot create file 'C:\Users\x\Documents\Visual Studio 2005\Projects\y\ServiceLogOnline\z\z_log.LDF' because it already exists. Change the file path or the file name, and retry the operation.
Could not open new database 'z'. CREATE DATABASE is aborted.
Cannot attach the file 'C:\Users\x\Documents\Visual Studio 2005\Projects\y\y\App_Data\z.mdf' as database 'z'.
File activation failure. The physical file name "C:\Documents and Settings\Administratör\Mina dokument\Visual Studio 2005\Projects\y\y\App_Data\z_log.ldf" may be incorrect.

I have tried giving 'Everyone' permission to do everything to the app_data folder, but it still does not work. What am I doing wrong?

Yours,

Johan
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Answered By: p_davis
Expert Since: 07/06/2005
Accepted Solutions: 432
p_davis has been an Expert for 3 years 6 months, during which he has posted 2458 comments and answered 432 questions. p_davis is just one of 3089 experts in the SQL Server 2005 Zone. 1 expert collaborated on this answer, which was graded a "B" by the asker.
 
 
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