大约有 45,000 项符合查询结果（耗时：0.0724秒） [XML]
How to force LINQ Sum() to return 0 while source collection is empty
Basically when I do the following query, if no leads were matched the following query throws an exception. In that case I'd prefer to have the sum equalize 0 rather than an exception being thrown.
Would this be possible in the query itself - I mean rather than storing the query and checking query.A...
How do you do a case insensitive search using a pattern modifier using less?
...e of less that I found is starting it with +F as an argument (or hitting SHIFT+F while in less). This causes it to follow the file you've opened, in the same way that tail -f <file> will. Very handy if you're watching log files from an application, and are likely to want to page back up (if it...
Could not load file or assembly 'Newtonsoft.Json, Version=4.5.0.0, Culture=neutral, PublicKeyToken=3
...ed this as a comment but as @OwenBlacker suggested I'll just put it here:
If you still get an error after doing this, then what worked for me eventually is that I deleted Json.Net's <dependentAssembly> section from my .config file. Reinstall brings it back if it's not there and apparently you...
Get current URL with jQuery?
...
Far from killing it, jQuery's given Javascript a new life. Do new C#/Java programmers understand pointers? No. Do they need to? Not really, newer abstractions are powerful enough for it not to matter..
– flesh
Jan 11 '11 at 22:10
...
Getting error while sending email through Gmail SMTP - “Please log in via your web browser and then
...pps setting. Be sure you are applying these to the correct account.
If you've turned on 2-Step Verification for your account, you might need to enter an App password instead of your regular password.
Sign in to your account from the web version of Gmail at https://mail.google.com....
Disable Rails SQL logging in console
...ing when I'm executing commands in the console? Ideally, it would be great if I can just disable it and re-enable it with a command in the console.
...
Using regular expression in css?
...
An ID is meant to identify the element uniquely. Any styles applied to it should also be unique to that element. If you have styles you want to apply to many elements, you should add a class to them all, rather than relying on ID selectors...
<...
Return a value from AsyncTask in Android [duplicate]
...ue with this approach is that the AsyncTask will be triggered (repeatedly) if there is a configuration change in the activity and the task is started from one of the lifecycle methods... learned this the hard way had multiple tasks doing the same thing upon changing the screen orientation
...
pypi UserWarning: Unknown distribution option: 'install_requires'
... Say I want to use pip, then how do I run the setup.py file if I only want to build an extension in-place?
– Fred Foo
May 24 '12 at 11:41
12
...
What is “export default” in javascript?
...escribed here. There is a helpful example in that documentation, also:
If a module defines a default export:
export default function() { console.log("hello!") }
then you can import that default export by omitting the curly braces:
import foo from "foo";
foo(); // hello!
Update: As o...