大约有 45,000 项符合查询结果（耗时：0.0222秒） [XML]
iPhone - Get Position of UIView within entire UIWindow
...
344
That's an easy one:
[aView convertPoint:localPosition toView:nil];
... converts a point in ...
Is it necessary to explicitly remove event handlers in C#
...Subscriber.FooHandler()
Raising Foo
No handlers
(Tested on Mono and .NET 3.5SP1.)
Further edit:
This is to prove that an event publisher can be collected while there are still references to a subscriber.
using System;
public class Publisher
{
~Publisher()
{
Console.WriteLine("~...
100% width Twitter Bootstrap 3 template
...lable any longer. I have no idea how to achieve that layout with bootstrap 3. I am using the Geometry PSD template from themeforest, the link here if you want to see the layout : http://themeforest.net/item/geometry-design-for-geolocation-social-networkr/4752268
...
alternatives to REPLACE on a text or ntext datatype
...
answered Dec 3 '10 at 1:23
p.campbellp.campbell
88.7k5959 gold badges238238 silver badges312312 bronze badges
...
Syntax for if/else condition in SCSS mixin
...
3 Answers
3
Active
...
Prevent ViewPager from destroying off-screen views
...
3 Answers
3
Active
...
Get __name__ of calling function's module in Python
...
3 Answers
3
Active
...
MySQL Multiple Joins in one query?
...
answered Jan 23 '12 at 15:49
Code MagicianCode Magician
20.3k55 gold badges5252 silver badges7575 bronze badges
...
Pass a data.frame column name to a function
... just use the column name directly:
df <- data.frame(A=1:10, B=2:11, C=3:12)
fun1 <- function(x, column){
max(x[,column])
}
fun1(df, "B")
fun1(df, c("B","A"))
There's no need to use substitute, eval, etc.
You can even pass the desired function as a parameter:
fun1 <- function(x, colu...