大约有 41,000 项符合查询结果（耗时：0.0540秒） [XML]
Nullable type as a generic parameter possible?
... nullable parameter
static void Main(string[] args)
{
int? i = GetValueOrNull<int>(null, string.Empty);
}
public static Nullable<T> GetValueOrNull<T>(DbDataRecord reader, string columnName) where T : struct
{
object columnValue = reader[columnName];
if (!(columnValue...
How to set the font size in Emacs?
...ce-inverse-video-p set-face-underline set-face-background-pixmap set-face-foreground set-face-stipple set-face-underline-p.
– Tom Brito
Jan 24 '13 at 12:38
...
git: fatal: Could not read from remote repository
...stem as part of your remote's URL. Put the username, followed by an @, before the remote hostname.
git remote set-url website abc@***.com:path/to/repo
share
|
improve this answer
|
...
How do I put two increment statements in a C++ 'for' loop?
I would like to increment two variables in a for -loop condition instead of one.
8 Answers
...
CPU Privilege Rings: Why rings 1 and 2 aren't used?
...
As a hobbyist operating system writer, I found that because paging (a major part of the modern protection model) only has a concept of privileged (ring 0,1,2) and unprivileged, the benefit to rings 1 and 2 were diminished greatly.
The intent by Intel in having rings 1 and 2 is for the OS to put d...
What can I use instead of the arrow operator, `->`?
What is the arrow operator ( -> ) a synonym for?
7 Answers
7
...
Can two Java methods have same name with different return types? [duplicate]
...ecification, Java SE 8 Edition, §8.4.2. Method Signature:
Two methods or constructors, M and N, have the same signature if they have the same name, the same type parameters (if any) (§8.4.4), and, after adapting the formal parameter types of N to the the type parameters of M, the same formal p...
NHibernate vs LINQ to SQL
As someone who hasn't used either technology on real-world projects I wonder if anyone knows how these two complement each other and how much their functionalities overlap?
...
Use of Finalize/Dispose method in C#
...'t use unmanaged resources, you simply implement a Dispose method as with normal interface implementations:
public sealed class A : IDisposable
{
public void Dispose()
{
// get rid of managed resources, call Dispose on member variables...
}
}
When implementing an unsealed clas...
Difference in months between two dates
...tive value
((date1.Year - date2.Year) * 12) + date1.Month - date2.Month
Or, assuming you want an approximate number of 'average months' between the two dates, the following should work for all but very huge date differences.
date1.Subtract(date2).Days / (365.25 / 12)
Note, if you were to use t...