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How do I group Windows Form radio buttons?
... control, Type type)
{
var controls = control.Controls.Cast<Control>();
return controls.SelectMany(ctrl => GetAll(ctrl, type))
.Concat(controls)
.Where(c => c.GetType() == type);
...
Converting String to Int with Swift
...
@aremvee do you mean "cast" an integer as a string? And what exactly does this do that answers the question which the other answers don't?
– Alex Hall
Jul 3 '17 at 21:46
...
Counting the occurrences / frequency of array elements
... wider usage. Storing the values as object keys to count them means you're casting those values to strings and then counting that value. [5, "5"] will simply say you've got "5" two times. Or counting instances some different objects is just gonna tell you there's a lot of [object Object]. Etc. etc.
...
How do I get the difference between two Dates in JavaScript?
...are Date instances. Calling operators + and - will trigger Javascript auto casting and will automatically call the valueOf() prototype method of those objects. It happens that the valueOf() method is implemented in the Date object as a call to getTime().
So basically: date.getTime() === date.valueO...
What is the main purpose of setTag() getTag() methods of View?
...are not descriptive at all.
It just stores an Object, which requires to be cast when you want to getTag. You can get unexpected crashes later when you decide to change the type of stored object in the tag.
Here's a real-life story: We had a pretty big project with a lot of adapters, async operations...
Can git undo a checkout of unstaged files
...
I understand that changes to a 'private' file cannot be undone by git. However, if the file was modified by git (e.g. via git checkout --), I'd expect it to be able to undo that operation, maybe via the reflog. Is that wrong expectati...
iPhone App 开发第一步：从零到真机调试HelloWorld - 更多技术 - 清泛网 - ...
...发，由于没有Mac，采用的是AMD CPU + Win7 + VMWare之后安装Mac OS X Snow Le... iCc原创，转载请注明出处！
最近才开始研究iPhone开发，由于没有Mac，采用的是AMD CPU + Win7 + VMWare之后安装Mac OS X Snow Leopard，再升级，再安装XCode 4.2和iOS SDK 5.0...
Environment variable to control java.io.tmpdir?
...
Hmmm -- since this is handled by the JVM, I delved into the OpenJDK VM source code a little bit, thinking that maybe what's done by OpenJDK mimics what's done by Java 6 and prior. It isn't reassuring that there's a way to do this other than on Win...
Unix shell script find out which directory the script file resides?
...ed to use readlink as well (see al's answer below)
– AndrewR
Mar 17 '10 at 23:26
45
In bash it is...
What is the difference between ExecuteScalar, ExecuteReader and ExecuteNonQuery?
...erting.
INSERT INTO my_profile (Address) VALUES ('123 Fake St.');
SELECT CAST(scope_identity() AS int)
ExecuteReader gives you a data reader
back which will allow you to read all
of the columns of the results a row
at a time.
An example would be pulling profile information for one or more users...