大约有 48,000 项符合查询结果(耗时:0.0808秒) [XML]
What effect(s) can the virtual keyword have in Entity Framework 4.1 POCO Code First?
... you don't want to fetch that column, never fetch the whole record - just .Select(a=>new { fields you want }).
– Scott Stafford
Jun 14 '13 at 13:19
|
...
How to define a custom ORDER BY order in mySQL
...in the order you specify.
The second will involve a case somewhere, i.e.
SELECT * FROM table
ORDER BY CASE Language
WHEN 'ENU' THEN 3
WHEN 'JPN' THEN 2
WHEN 'DAN' THEN 1
ELSE 0
END DESC, ID ASC
Performance-wise the ENUM method will return faster results, but be more hassle if you...
How do I specify a pointer to an overloaded function?
...putIterator, InputIterator, UnaryFunction );
Template deduction needs to select a type for UnaryFunction at the point of the call. But f doesn't have a specific type - it's an overloaded function, there are many fs each with different types. There is no current way for for_each to aid the template...
How can I save application settings in a Windows Forms application?
...gs. Right click on the project in Solution Explorer and choose Properties. Select the Settings tab and click on the hyperlink if settings doesn't exist.
Use the Settings tab to create application settings. Visual Studio creates the files Settings.settings and Settings.Designer.settings that contain...
“User interaction is not allowed” trying to sign an OSX app using codesign
...ish agrawal!
Login your build user via the GUI and open Keychain Access. Select your signing private key, right-click, choose Get Info, change to the Access Control tab and select the "Allow all applications to access this item".
...
How to flatten tree via LINQ?
...IEnumerable<MyNode> Flatten(IEnumerable<MyNode> e) =>
e.SelectMany(c => Flatten(c.Elements)).Concat(new[] { e });
You can then filter by group using Where(...).
To earn some "points for style", convert Flatten to an extension function in a static class.
public static IEnume...
Why does this async action hang?
...DBConnection.ExecuteAsync<ResultClass>(
ds => ds.Execute("select slow running data into result"));
}
What's the difference? There's now no awaiting anywhere, so nothing being implicitly scheduled to the UI thread. For simple methods like these that have a single return, there's no...
How to navigate through the source code by parts in CamelCase (instead of whole words)?
...g and disabling the setting called "Honor "CamelHumps" words settings when selecting on double click".
– Paul Lammertsma
Jan 22 '15 at 13:14
9
...
Xcode 4 - slow performance
...sure Xcode isn't open. Now find your project file. Right-click on it, and select Show Package Contents.
Next, delete project.xcworkspace.
Open Xcode and enjoy faster performance!
Thanks to:
http://meachware.blogspot.com/2011/06/speed-up-xcode-4.html
Edit: I've gotten several comments a...
Merge branch with trunk
...der to merge branch into trunk.
1) Right click on trunk working copy and select the below option.
2) In case of Branch Merging into trunk select option second as shown below and click next
3) In the From: field enter the full folder URL of the trunk. This may sound wrong, but remember that...
