大约有 43,000 项符合查询结果（耗时：0.0624秒） [XML]
Update Row if it Exists Else Insert Logic with Entity Framework
..., but I'm running into this issue on update: An object with the same key already exists in the ObjectStateManager. The ObjectStateManager cannot track multiple objects with the same key.
– John Zumbrum
Nov 29 '12 at 21:58
...
What is a build tool?
... - Ant,Maven,Gradle.
For .NET framework - NAnt
c# - MsBuild.
For further reading you can refer following links:
1.Build automation
2.List of build automation software
Thanks.
share
|
improve thi...
RecyclerView onClick
...ction of a specific i-th element out of the N elements. The ListView was already problematic if you had to create a list of more complicated objects than just simple rows. What if you need to handle different events depending on where you click the item in the ListView? You're screwed. Here, you hav...
Hibernate: Automatically creating/updating the db tables based on entity classes
...an can possibly stop your hibernate from generating tables (assuming You already have set the hibernate.hbm2ddl.auto). You will also need the @Table annotation!
@Entity
@Table(name = "test_entity")
public class TestEntity {
}
It has already helped in my case at least 3 times - still cannot r...
Most efficient way to cast List to List
...aised at some far distant, hard-to-associate point in code when a value is read from the collection. If you heed compiler warnings about type safety, you will avoid these type errors at runtime.
share
|
...
Iterate through a C++ Vector using a 'for' loop
...
I like the compact version because there's less code to read. Once you make the mental adjustment it's much easier to understand and bugs stand out more. It also makes it much more obvious when there's a non-standard iteration happening because there's a much bigger chunk of code....
Setup a Git server with msysgit on Windows [closed]
...time consuming this would be, I might have started out with Mercurial as I read the install on Windows is easier, but I'll have an opinion on that after I work with Git awhile and then try Mercurial.
share
|
...
How to find out which JavaScript events fired?
...ener Breakpoints (on the right).
You can also view all events that have already been attached by simply right clicking on the element and then browsing its properties (the panel on the right).
For example:
Right click on the upvote button to the left
Select inspect element
Collapse the styles sec...
Is there any way to do HTTP PUT in python
... to upload some data to a server using HTTP PUT in python. From my brief reading of the urllib2 docs, it only does HTTP POST . Is there any way to do an HTTP PUT in python?
...
Call Activity method from adapter
...I have nothing against you but answer below is best practice. You can even read in comments. You should not cast mContext to your Activity as you are avoiding reuse of code. Now this adapter can only be used inside the Activity which you have casted your mContext variable to, where if you have a lis...