大约有 40,000 项符合查询结果（耗时：0.0594秒） [XML]
Linq: GroupBy, Sum and Count
...a" is coming from, but the problem in the console app is that you're using SelectMany to look at each item in each group.
I think you just want:
List<ResultLine> result = Lines
.GroupBy(l => l.ProductCode)
.Select(cl => new ResultLine
{
ProductName =...
You need to use a Theme.AppCompat theme (or descendant) with this activity
...l files, and then the Android menifest file will merely refer to them, and select them based on which Android version you are running on your device. Usually it is set to android:theme="@style/AppTheme" and this AppTheme refers to <style name="Theme.AppTheme" parent="Theme.AppCompat.Light"> i...
Selecting and manipulating CSS pseudo-elements such as ::before and ::after using jQuery
Is there any way to select/manipulate CSS pseudo-elements such as ::before and ::after (and the old version with one semi-colon) using jQuery?
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How to create cron job using PHP?
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Type the following in the linux/ubuntu terminal
crontab -e
select an editor (sometime it asks for the editor)
and this to run for every minute
* * * * * /usr/bin/php path/to/cron.php &> /dev/null
...
iphone: Where the .dSYM file is located in crash report
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You can locate .dSYM and application binary file in archive.
Select Window -> Organizer
This will open up Organizer window containing last created Archive of project
Right click on Archive and select 'Show in Finder'
Select 'Show Package Content' for archive
Project.xcarchive...
Moving and vanishing lines of code; trouble with Eclipse's XML Editor
...t to Help > Install new software > What is already installed? Then I selected all the Android stuff from Google, selected Update, and now life is good again.
– rodrigo-silveira
Jan 7 '13 at 16:22
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Which encoding opens CSV files correctly with Excel on both Mac and Windows?
We have a web app that exports CSV files containing foreign characters with UTF-8, no BOM. Both Windows and Mac users get garbage characters in Excel. I tried converting to UTF-8 with BOM; Excel/Win is fine with it, Excel/Mac shows gibberish. I'm using Excel 2003/Win, Excel 2011/Mac.
Here's all the ...
Difference between UTF-8 and UTF-16?
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Both UTF-8 and UTF-16 are variable length encodings. However, in UTF-8 a character may occupy a minimum of 8 bits, while in UTF-16 character length starts with 16 bits.
Main UTF-8 pros:
Basic ASCII characters like digits, Latin characters with no accents, etc. occupy one byte which is identical...
Android Spinner: Get the selected item change event
How can you set the event listener for a Spinner when the selected item changes?
16 Answers
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How to solve “The specified service has been marked for deletion” error
...ing state. The following procedure worked for me:
open task manager > select services tab > select the service > right click and select "go to process" > right click on the process and select End process
Service should be gone after that
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