大约有 47,000 项符合查询结果(耗时:0.0276秒) [XML]

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Multiple “order by” in LINQ

...ow in _db.Movies orderby row.Category, row.Name select row; [EDIT to address comment] To control the sort order, use the keywords ascending (which is the default and therefore not particularly useful) or descending, like so: var movies = from row in _db.Movies ...
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Heroku Postgres - terminate hung query (idle in transaction)

...'s not desirable or not an option ...) Find the PID by running this sql: SELECT pid , query, * from pg_stat_activity WHERE state != 'idle' ORDER BY xact_start; (The query may need mending dependent of the version of postgres - eventually, just select * from pg_stat_activity). You'll find the ...
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Xcode + remove all breakpoints

...l breakpoints. In Xcode4 press CMD(⌘)+6, in Xcode3 press CMD(⌘)+ALT+B. Select all breakpoints with CMD(⌘)+A and delete them, like deleting text, with backspace. There's no step 3 :) share | i...
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XPath to select Element by attribute value

...he parts in [ ]) shouldn't have slashes immediately before them. Also, to select the Employee element itself, you should leave off the /text() at the end or otherwise you'd just be selecting the whitespace text values immediately under the Employee element. //Employee[@id='4'] Edit: As Jens poin...
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Select all text inside EditText when it gets focus

...ext with some dummy text in it. When the user clicks on it I want it to be selected so that when the user starts typing the dummy text gets deleted. ...
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Explicit vs implicit SQL joins

...e joined and how they are joined. Try compare larger SQL queries where you selecting from 8 different tables and you have lots of filtering in the where. By using join syntax you separate out the parts where the tables are joined, to the part where you are filtering the rows. ...
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Convert Linq Query Result to Dictionary

... @pawan - that doesn't look right. I'd expect var servers = list.Select( s => new { s.ProjectName, Url = "tcp://" + s.BuildMachineName + ":" + s.PortNumber + "/CruiseManager.rem" } ).ToDictionary( s => s.ProjectName, s.Url ); This creates a dictionary keyed by project name of projec...
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How to use jQuery to select a dropdown option?

I was wondering if it’s possible to get jQuery to select an <option> , say the 4th item, in a dropdown box? 13 Ans...
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Build unsigned APK file with Android Studio

...nu in the toolbar at the top (Open 'Edit Run/Debug configurations' dialog) Select "Edit Configurations" Click the "+" Select "Gradle" Choose your module as a Gradle project In Tasks: enter assemble Press Run Your unsigned APK is now located in ProjectName\app\build\outputs\apk For detailed inf...
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Eclipse: How do i refresh an entire workspace? F5 doesn't do it

...le->Refresh , it doesn't really refresh anything (perhaps the currently selected project). How do I get eclipse to refresh all of the projects? ...