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Difference between namespace in C# and package in Java
What is the difference (in terms of use) between namespaces in C# and packages in Java?
6 Answers
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Will ConfigurationManager.AppSettings[“blah”] throw an exception if “blah” doesn't exist?
...returns null in the following cases: 1) if the specified key is not found; and 2) if the specified key is found and its associated value is null. This property does not distinguish between the two cases.
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Get “Internal error in the expression evaluator” on “Add watch” function when trying to debug WCF se
...s the issue, then I'd suggest trying to reproduce it with a small project, and then reporting it on Connect, so it could be fixed.
@bjhuffine comments below that there are other ways to enable compatibility mode, without globally disabling it (e.g. per-project). More information here: https://devbl...
Why does Typescript use the keyword “export” to make classes and interfaces public?
...meClass = SomeClass;.
So conceptually, visibility as controlled by public and private is just for tooling, whereas the export keyword changes the output.
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What is the ellipsis (…) for in this method signature?
...tOfStrings is an array of String.
So you could save the compiler some work and pass an array:
String[] argsVar = {"first", "second"};
obj.PrintWithEllipsis(argsVar);
For varargs methods, a sequence parameter is treated as being an array of the same type. So if two signatures differ only in that o...
Why is '+' not understood by Python sets?
...'t have an implementation for the + operator.
You can use | for set union and & for set intersection.
Sets do implement - as set difference. You can also use ^ for symmetric set difference (i.e., it will return a new set with only the objects that appear in one set but do not appear in both se...
What does the line “#!/bin/sh” mean in a UNIX shell script?
I was going through some shell script tutorials and found the following sample program:
5 Answers
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C# XML Documentation Website Link
... Hmmm, my apologies. I did a little more research (see here and here) -- and it looks like the VS IDE won't display those hyperlinks, but a documentation tool such as SandCastle would be able to display them.
– dizzwave
Aug 5 '11 at 19:56
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Guid.NewGuid() vs. new Guid()
What's the difference between Guid.NewGuid() and new Guid() ?
4 Answers
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XmlWriter to Write to a String Instead of to a File
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You need to create a StringWriter, and pass that to the XmlWriter.
The string overload of the XmlWriter.Create is for a filename.
E.g.
using (var sw = new StringWriter()) {
using (var xw = XmlWriter.Create(sw)) {
// Build Xml with xw.
}
return s...