i have a databse and i want to keep my data in the database when i reinstall my program...what file i copy ?

Hi, Computer Freek,

Based on my understanding, you want to keep the mdf file when you reinstall your application, don't you?

Well, to do this job, you should add the application files separately through "Add"->"File..."

Then you can set the "Permanent" property of this mdf file to true.

After that, when you uninstall your application, the mdf will not be removed and when you reinstall the application, the mdf will not be over written as well.

Hope this helps,

Regards

but if i want to copy the mdf file to another user's computer wat file do i copy ? and what os you using in the screenshot ?

Hi, Computer Freek,

What you you mean of "copy the mdf file"?

How do you actually install anduninstall your application?

The screenshot is for a Setup Project.

Setup Project is used to create Windows Installer Deployment.

Don't you use it to deploy your application?

http://msdn2.microsoft.com/en-us/library/2kt85ked.aspx

Regards

what i want to do is to copy the data in my database to another user's computer....

Hi, Computer Freek

Are you trying to do the same thing as this thread?

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2713333&SiteID=1

Regards

not really i say i want to copy the database because it will be easier 4 all to understand...
but i want to back up my database how do i do that ?

Hi, Computer Freek,

To back up your DataBase, you should just back up your MDF file.

Here is an article talking about the Data Source files in .Net.

http://msdn2.microsoft.com/en-us/library/8s2t4x15.aspx

The currently supported formats of local data files are SQL Server Compact 3.5 (.sdf), Access (.mdb) and SQL Express (.mdf) files.

Hope this helps,

Regards