大约有 11,390 项符合查询结果(耗时:0.0187秒) [XML]
Generating an Excel file in ASP.NET [closed]
I am about to add a section to an ASP.NET app (VB.NET codebehind) that will allow a user to get data returned to them as an Excel file, which I will generate based on database data. While there are several ways of doing this, each has its own drawbacks. How would you return the data? I'm lookin...
Spring @Transactional - isolation, propagation
...ays run in a transaction. Creates a new transaction or reuses one if available.
Requires_new: Code will always run in a new transaction. Suspends the current transaction if one exists.
Isolation
Defines the data contract between transactions.
Read Uncommitted: Allows dirty reads.
Read Committ...
Can I unshelve to a different branch in tfs 2008?
...s assume that some developer in my team shelved his changes that he did in branch A. And I am working on branch B. Can I unshelve his changes into branch B? (By GUI or command prompt)
...
What's the difference between returning void and returning a Task?
...is useful to return data to the caller when the async operation completes, but the functions that I've seen that have a return type of Task never return any data. Why not return void ?
...
What's wrong with using $_REQUEST[]?
I've seen a number of posts on here saying not to use the $_REQUEST variable. I usually don't, but sometimes it's convenient. What's wrong with it?
...
Haskell: Lists, Arrays, Vectors, Sequences
...
Lists Rock
By far the most friendly data structure for sequential data in Haskell is the List
data [a] = a:[a] | []
Lists give you ϴ(1) cons and pattern matching. The standard library, and for that matter the prelude, is full of u...
Is there ever a time where using a database 1:1 relationship makes sense?
...zation, and it occurred to me, I cannot think of a time where there should be a 1:1 relationship in a database.
26 Answers
...
How to append rows to an R data frame
I have looked around StackOverflow, but I cannot find a solution specific to my problem, which involves appending rows to an R data frame.
...
multiprocessing.Pool: When to use apply, apply_async or map?
...
Back in the old days of Python, to call a function with arbitrary arguments, you would use apply:
apply(f,args,kwargs)
apply still exists in Python2.7 though not in Python3, and is generally not used anymore. Nowadays,
f...
What is the smallest possible valid PDF?
...imple curiosity, having seen the smallest GIF , what is the smallest possible valid PDF file?
4 Answers
...
