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A reference to the dll could not be added
...I used it but it has to do with registering COM servers so certain entry points need to be available. If regsvr32 fails the DLL doesn't provide those entry points and the DLL does not contain a COM component.
You only chance for using the DLL is to import it like any other non-.NET binary, e.g. whe...
Generate random string/characters in JavaScript
...tring method of a number type in javascript takes an optional parameter to convert the number into a given base. If you pass two, for example, you'll see your number represented in binary. Similar to hex (base 16), base 36 uses letters to represent digits beyond 9. By converting a random number to b...
How to use MDC with thread pools?
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Yes, this is a common problem I've run into as well. There are a few workarounds (like manually setting it, as described), but ideally you want a solution that
Sets the MDC consistently;
Avoids tacit bugs where the MDC is incorrect but you don't know it; and
Min...
How to use an existing database with an Android application [duplicate]
...e static String DB_NAME ="YourDbName"; // Database name
private static int DB_VERSION = 1; // Database version
private final File DB_FILE;
private SQLiteDatabase mDataBase;
private final Context mContext;
public DataBaseHelper(Context context) {
super(context, DB_NAME, n...
How do I verify a method was called exactly once with Moq?
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Imagine we are building a calculator with one method for adding 2 integers. Let's further imagine the requirement is that when the add method is called, it calls the print method once. Here is how we would test this:
public interface IPrinter
{
void Print(int answer);
}
public class C...
What is the most “pythonic” way to iterate over a list in chunks?
I have a Python script which takes as input a list of integers, which I need to work with four integers at a time. Unfortunately, I don't have control of the input, or I'd have it passed in as a list of four-element tuples. Currently, I'm iterating over it this way:
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Const before or const after?
...bably know that const can be used to make either an object's data or a pointer not modifiable or both.
7 Answers
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Mapping composite keys using EF code first
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public string SomeId { get; set; }
[Key, Column(Order = 1)]
public int OtherId { get; set; }
}
You can also look at this SO question. If you want official documentation, I would recommend looking at the official EF website. Hope this helps.
EDIT: I just found a blog post from Julie Lerman...
Forward an invocation of a variadic function in C
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If you don't have a function analogous to vfprintf that takes a va_list instead of a variable number of arguments, you can't do it. See http://c-faq.com/varargs/handoff.html.
Example:
void myfun(const char *fmt, va_list argp) {
vfprintf(stderr, fmt, argp);
}
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C++: const reference, before vs after type-specifier
...ference itself is immutable, which is redundant; when dealing with const pointers both Fred const* and Fred* const are valid but different.
It's a matter of style, but I prefer using const as a suffix since it can be applied consistently including const member functions.
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