大约有 44,000 项符合查询结果(耗时:0.0707秒) [XML]
Update relationships when saving changes of EF4 POCO objects
...se context.ObjectStateManager.ChangeObjectState to set your BlogPost to Modified
Iterate through Tag collection
Use context.ObjectStateManager.ChangeRelationshipState to set state for relation between current Tag and BlogPost.
SaveChanges
Edit:
I guess one of my comments gave you false hope that ...
An algorithm for inflating/deflating (offsetting, buffering) polygons
... For anyone that wants to do this, another alternative is to use GEOS, and if your using python, GEOS's wrapper, Shapely. A really pretty example: toblerity.github.com/shapely/manual.html#object.buffer
– pelson
Oct 3 '12 at 8:04
...
package R does not exist
...ed by renaming the namespace folders. I just forgot to also edit AndroidManifest and that's why I got this error.
Make sure you check this as well.
share
|
improve this answer
|
...
What is the meaning of the CascadeType.ALL for a @ManyToOne JPA association
...orphans. However the inverse case (annotating the User) would make sense - if an address belongs to a single user only, it is safe to propagate the removal of all addresses belonging to a user if this user is deleted.
BTW: you may want to add a mappedBy="addressOwner" attribute to your User to sig...
Case-insensitive string comparison in C++ [closed]
...
std::string str1 = "hello, world!";
std::string str2 = "HELLO, WORLD!";
if (boost::iequals(str1, str2))
{
// Strings are identical
}
share
|
improve this answer
|
fol...
Combining node.js and Python
... communication between node.js and Python server, I would use Unix sockets if both processes run on the same server and TCP/IP sockets otherwise. For marshaling protocol I would take JSON or protocol buffer. If threaded Python shows up to be a bottleneck, consider using Twisted Python, which
provide...
COUNT(*) vs. COUNT(1) vs. COUNT(pk): which is better? [duplicate]
...
Use either COUNT(field) or COUNT(*), and stick with it consistently, and if your database allows COUNT(tableHere) or COUNT(tableHere.*), use that.
In short, don't use COUNT(1) for anything. It's a one-trick pony, which rarely does what you want, and in those rare cases is equivalent to count(*)...
SELECT INTO a table variable in T-SQL
...
If you "SELECT name, location FROM myTable" as the values you will be inserting into the UserData table doesn't it matter if the names of the variables in the select match the names in the table definition. You are selecting ...
Removing duplicate rows in vi?
...one on each line). Some of these are duplicates, and I would like to know if it is possible (and if so, how) to remove any duplicates. I am interested in doing this from within vi/vim, if possible.
...
How to get duplicate items from a list using LINQ? [duplicate]
...ny(grp => grp.Skip(1));
Note that this will return all duplicates, so if you only want to know which items are duplicated in the source list, you could apply Distinct to the resulting sequence or use the solution given by Mark Byers.
...
