StackOverflow2013

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plurals

PO
primarykey
Id
16003670
data
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0
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2013-04-14T19:57:34.890
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2013-04-14T19:57:34.890
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3
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LastEditorDisplayName
text
Body
You didn't show us your connection string - but I'm just guessing from the "symptoms" you report. The whole User Instance and AttachDbFileName= approach is flawed - at best! When running your app in Visual Studio, it will be copying around the <code>.mdf</code> file (from your <code>App_Data</code> directory to the output directory - typically <code>.\bin\debug</code> - where you app runs) and most likely, your <code>INSERT</code> works just fine - but you're just looking at the wrong .mdf file in the end! If you want to stick with this approach, then try putting a breakpoint on the <code>myConnection.Close()</code> call - and then inspect the <code>.mdf</code> file with SQL Server Mgmt Studio Express - I'm almost certain your data is there. The real solution in my opinion would be to <ol> <li>install SQL Server Express (and you've already done that anyway)</li> <li>install SQL Server Management Studio Express</li> <li>create your database in SSMS Express, give it a logical name (e.g. <code>MyDB</code>) </li> <li>connect to it using its logical database name (given when you create it on the server) - and don't mess around with physical database files and user instances. In that case, your connection string would be something like: <pre><code>Data Source=.\\SQLEXPRESS;Database=MyDB;Integrated Security=True </code></pre> and everything else is exactly the same as before...</li> </ol>
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1. This table or related slice is empty.
PostParentId
1. POEF savechanges() does not effect on my .mdf DB
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1. PTAnswer
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1. USmarc_s
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1. POEF savechanges() does not effect on my .mdf DB
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