大约有 10,900 项符合查询结果（耗时：0.0292秒） [XML]
Sequence contains no matching element
I have an asp.net application in which I am using linq for data manipulation. While running, I get the exception "Sequence contains no matching element".
...
git remote prune – didn't show as many pruned branches as I expected
...
When you use git push origin :staleStuff, it automatically removes origin/staleStuff, so when you ran git remote prune origin, you have pruned some branch that was removed by someone else. It's more likely that your co-workers now need to run git prune to get rid of branches yo...
What does `:_*` (colon underscore star) do in Scala?
...utes: MetaData, scope: NamespaceBinding,
child: Node*)
which is called as
new Elem(prefix, label, attributes, scope,
child1, child2, ... childN)
but here there is only a sequence, not child1, child2, etc. so this allows the result sequence to be used as the input to the constr...
SQLite - How do you join tables from different databases?
I have an application that uses a SQLite database and everything works the way it should. I'm now in the process of adding new functionalities that require a second SQLite database, but I'm having a hard time figuring out how to join tables from the different databases.
...
CORS - How do 'preflight' an httprequest?
...eral techniques for working with the cross domain scripting limitations. Because my service must accommodate both GET and POST requests I cannot implement some dynamic script tag whose src is the URL of a GET request. Since I am free to make changes at the server I have begun to try to implement a w...
How can I resolve “Error: No developer directory found at /Developer”?
...
sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer
share
|
improve this answer
|
follow
|
...
Select 50 items from list at random to write to file
...
If the list is in random order, you can just take the first 50.
Otherwise, use
import random
random.sample(the_list, 50)
random.sample help text:
sample(self, population, k) method of random.Random instance
Chooses k unique random elements from a popul...
Android Studio Multi-Windows for One Project
...wo windows of Android Studio with both having the same project. I know you can drag tabs out, but that allows you to only edit that one file. I want two fully-featured windows with each being able to see the Project Files/Structure.
...
List files in local git repo?
...rectory, you may find more convenient to explore specific directories. You can do it by obtaining the ID/SHA-1 of the directory that you want to explore and then use git cat-file -p [ID/SHA-1 of directory]. For example:
git cat-file -p 14032aabd85b43a058cfc7025dd4fa9dd325ea97
100644 blob b93a4953ff...
Hide files with certain extension in Sublime Text Editor?
...g you to navigate amongst its contents and sub-directories. If that is the case, then the answer is yes, files can be excluded.
Select Preferences → Settings – Default to open a tab called Preferences.sublime-settings – Default. This file is read-only, so you'll also need to open Preferences ...