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ExecuteReader requires an open and available Connection. The connection's current state is Connectin

...on = new SqlConnection(connectionString)) { var queryString = "SELECT PromotionID, PromotionTitle, PromotionURL FROM Promotion WHERE PromotionID=@PromotionID"; using (var da = new SqlDataAdapter(queryString, connection)) { // you could also use a SqlDataReader...
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Is a Python list guaranteed to have its elements stay in the order they are inserted in?

...represent lists of things so much as they describe the extent of a certain selection of things. The internal structure of set, how its elements are stored relative to each other, is usually not meant to convey useful information. In some implementations, sets are always internally sorted; in others ...
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Remote debugging with Android emulator

...s that it does not recognize the Android target of the emulator, so I must select the target at each run manually. – Frank Jul 2 '12 at 7:36 ...
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Differences between Emacs and Vim

...tor" has to go to emacs in my mind if for no other reason than a far wider selection of major and minor modes to help you as you type. – Kendall Helmstetter Gelner Sep 16 '09 at 1:42 ...
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Is there a CSS selector by class prefix?

...ble with CSS2.1, but it is possible with CSS3 attribute substring-matching selectors (which are supported in IE7+): div[class^="status-"], div[class*=" status-"] Notice the space character in the second attribute selector. This picks up div elements whose class attribute meets either of these con...
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How to use sessions in an ASP.NET MVC 4 application?

...SP.NET MVC. I have used PHP before and it was easy to create a session and select user records based on the current session variables. ...
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How Do I 'git fetch' and 'git merge' from a Remote Tracking Branch (like 'git pull')

... Selecting just one branch: fetch/merge vs. pull People often advise you to separate "fetching" from "merging". They say instead of this: git pull remoteR branchB do this: git fetch remoteR git merge remoteR b...
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Will Try / Finally (without the Catch) bubble the exception?

...such a delegate would allow the code which manipulated the object state to select appropriate cleanup action if it's disrupted. Such actions might include repairing the data structure and returning True, throwing another "more severe" exception which wraps the original one, or letting the original ...
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Detecting 'stealth' web-crawlers

... goes the whole argument. who says web crawlers visits sites in sequential selections? another huge assumption. – KJW Oct 9 '13 at 0:34 ...
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Create a Date with a set timezone without using a string representation

...urs to find out that the reason was a wrong month. – Select0r Feb 28 '12 at 14:17 4 This answer i...