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When to use Cast() and Oftype() in Linq
...y be cast to type x.
Cast - will try to cast all the elements into type x. if some of them are not from this type you will get InvalidCastException
EDIT
for example:
object[] objs = new object[] { "12345", 12 };
objs.Cast<string>().ToArray(); //throws InvalidCastException
objs.OfType<stri...
CA2202, how to solve this case
... return result.ToArray();
}
finally
{
if (memoryStream != null)
memoryStream.Dispose();
if (cryptograph != null)
cryptograph.Dispose();
if (cryptoStream != null)
cryptoStream.Dispose();
...
How to show a confirm message before delete?
... a confirm message on clicking delete (this maybe a button or an image). If the user selects ' Ok ' then delete is done, else if ' Cancel ' is clicked nothing happens.
...
execute function after complete page load
...ener('DOMContentLoaded', function() {
// your code here
}, false);
or
if your comfort with jquery,
$(document).ready(function(){
// your code
});
$(document).ready() fires on DOMContentLoaded, but this event is not being fired consistently among browsers. This is why jQuery will most probabl...
How to check if running in Cygwin, Mac or Linux?
...that is used both on Windows/Cygwin and Mac and Linux. It needs slightly different variables for each versions.
11 Answers...
What is the purpose of “return await” in C#?
...case when return in normal method and return await in async method behave differently: when combined with using (or, more generally, any return await in a try block).
Consider these two versions of a method:
Task<SomeResult> DoSomethingAsync()
{
using (var foo = new Foo())
{
...
Retrieve filename from file descriptor in C
...ll give you the name of the file as it was when it was opened — however, if the file was moved or deleted since then, it may no longer be accurate (although Linux can track renames in some cases). To verify, stat the filename given and fstat the fd you have, and make sure st_dev and st_ino are the...
Android: why is there no maxHeight for a View?
...ults needed for my layout. And it also addresses the comment by madhu.
If some layout present below the scrollview then this trick wont work – madhu Mar 5 at 4:36
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Find out if string ends with another string in C++
How can I find out if a string ends with another string in C++?
20 Answers
20
...
Why use strict and warnings?
It seems to me that many of the questions in the Perl tag could be solved if people would use:
8 Answers
...