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Xcode/Simulator: How to run older iOS version?

...e simulator from 3.2 onwards after upgrading. In the iPhone Simulator try selecting Hardware -> Version -> 3.2 share | improve this answer | follow | ...
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The identity used to sign the executable is no longer valid

... to Preferences --> Accounts --> View Details Press the + symbol and select iOS Development Press the refresh button in the lower left corner (called Download all in Xcode 7) PS: Sometimes it may also help to delete invalid provisioning profiles: right-click -> move to trash I saw this...
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Open file dialog and select a file using WPF controls and C#

...y files to search only for image files (type jpg, png, bmp...). And when I select an image file and click Ok in the file dialog I want the file directory to be written in the textbox1.text like this: ...
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Linq to Entities join vs groupjoin

...Join syntax would be from p in Parent join c in Child on p.Id equals c.Id select new { p.Value, c.ChildValue } returning an IEnumerable<X> where X is an anonymous type with two properties, Value and ChildValue. This query syntax uses the Join method under the hood. GroupJoin syntax would be ...
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The developers of this app have not set up this app properly for Facebook Login?

.../developers.facebook.com/ Click on the Apps menu on the top bar. Select the respective app from the drop down. The circle next to your app name is not fully green. When you hover mouse on it, you'll see a popup saying, "Not available to all users because your app is not live." So next...
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What is the advantage of using heredoc in PHP? [closed]

...e day I used to use them to construct SQL queries: $sql = <<<SQL select * from $tablename where id in [$order_ids_list] and product_name = "widgets" SQL; To me this has a lower probability of introducing a syntax error than using quotes: $sql = " select * from $tablename where ...
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LAST_INSERT_ID() MySQL

...RT INTO table2 (parentid,otherid,userid) VALUES (LAST_INSERT_ID(), 4, 1); SELECT MAX(id) FROM table1; share | improve this answer | follow | ...
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How to fix Python indentation

... do this: $ # see what changes it would make $ autopep8 path/to/file.py --select=E101,E121 --diff $ # make these changes $ autopep8 path/to/file.py --select=E101,E121 --in-place Note: E101 and E121 are pep8 indentation (I think you can simply pass --select=E1 to fix all indentation related issue...
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Get the value of a dropdown in jQuery

... $('#Crd').val() will give you the selected value of the drop down element. Use this to get the selected options text. $('#Crd option:selected').text(); share | ...
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How can you programmatically tell an HTML SELECT to drop down (for example, due to mouseover)?

How can you programmatically tell an HTML select to drop down (for example, due to mouseover)? 12 Answers ...