Databases
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    <p>Change this part of your connection string</p> <pre><code>AttachDbFilename=|DataDirectory|\Store-Manager\storemanager.mdf </code></pre> <p>DataDirectory is a substitution string that could be controlled from your program using </p> <pre><code>AppDomain.CurrentDomain.SetData("DataDirectory", "....."); </code></pre> <p>This should be done before any data access code is called.<br> Of course on the target PC you should be sure to have the relative part of the path</p> <p>So let me give a practical example. </p> <p>You set your connection string with this </p> <pre><code>....;AttachDbFilename=|DataDirectory|\storemanager.mdf;.... </code></pre> <p>In the target PC, you deploy your database file in a subfolder called <code>Store-Manager</code> that you create as a subfolder of the <a href="http://msdn.microsoft.com/en-us/library/system.environment.specialfolder.aspx" rel="nofollow noreferrer">CommonApplicationData</a> folder<br> (on Win7 this is C:\programdata).<br> Then, inside your code, before any data access code, you write </p> <pre><code>string appPath = Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData); AppDomain.CurrentDomain.SetData("DataDirectory", Path.Combine(appPath, "Store-Manager"); </code></pre> <p>Of course, on the target PC the Microsoft Sql Server Express (or not) should be already installed. </p> <p>See this article on <a href="http://social.msdn.microsoft.com/forums/en-US/sqlce/thread/dc31ea59-5718-49b6-9f1f-7039da425296/" rel="nofollow noreferrer">Microsoft forums</a> or this question on <a href="https://stackoverflow.com/questions/1409358/ado-net-datadirectory-where-is-this-documented">this same site</a></p>
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    1. POhow i make one connection string run in all pc?
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    1. COthen i put my path ? but when path is changed For exp its on F/sdas/asdasd when i put the project with db in other drive D/wefrwe/werwer it will work ? @Steve sry for you but i am a new student in C# classes
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    2. COAppDomain.CurrentDomain.SetData("|DataDirectory|\", "Store-Manager\storemanager.mdf "); i make Like this ?
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    3. COYou put the MDF file in a relative (to your application) known directory and then call SetData("DataDirectory", ....) to the executable path of your application. I assume you have a winform or wpf application
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