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Why does .NET foreach loop throw NullRefException when collection is null?
So I frequently run into this situation... where Do.Something(...) returns a null collection, like so:
11 Answers
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How do I delete everything in Redis?
...ushAll();
}
catch (Exception ex){
System.out.println(ex.getMessage());
}
}
}
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Maintain/Save/Restore scroll position when returning to a ListView
... opens this ListView again, I want the list to be scrolled to the same point that it was previously. Any ideas on how to achieve this?
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Initializing a member array in constructor initializer
... have to use braces directly to fire off list initialization
struct A {
int foo[3];
A():foo{1, 2, 3} { }
A():foo({1, 2, 3}) { } /* invalid */
};
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C++ mark as deprecated
I have a method in an interface that I want to deprecate with portable C++.
When I Googled for this all I got was a Microsoft specific solution; #pragma deprecated and __declspec(deprecated) .
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How do you display code snippets in MS Word preserving format and syntax highlighting?
...vailable in Office Addins with Office 365 !
Just select the code and click convert it and it converts the code text to formatted color code with line numbers !!!
Bit Rejoice!
Code Format is available here: https://appsource.microsoft.com/en-us/product/office/WA104379501?tab=Overview
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What is the difference between print and puts?
...ust be opened for writing. Each given object that isn't a
string will be converted by calling its to_s method. When
called without arguments, prints the contents of $_.
If the output field separator ($,) is not nil, it
is inserted between objects. If the output record separator
($\) is ...
What is the most efficient way to store a list in the Django models?
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A simple way to store a list in Django is to just convert it into a JSON string, and then save that as Text in the model. You can then retrieve the list by converting the (JSON) string back into a python list. Here's how:
The "list" would be stored in your Django model like...
Request format is unrecognized for URL unexpectedly ending in
...have gone away. if i see the error again i'll move the webservices configs into the webserver section.
– Daniel Brink
Apr 20 '10 at 8:08
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Using reflect, how do you set the value of a struct field?
..., a field of an
addressable struct, or the result of
dereferencing a pointer. If CanAddr
returns false, calling Addr will
panic.
The Go reflect package has a CanSet function, which, if true, implies that CanAddr is also true.
func (v Value) CanSet() bool
CanSet returns true if the va...