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C# Entity-Framework: How can I combine a .Find and .Include on a Model Object?
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You have to cast IQueryable to DbSet
var dbSet = (DbSet<Item>) db.Set<Item>().Include("");
return dbSet.Find(id);
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PostgreSQL query to return results as a comma separated list
...e taking an int for its first argument so I did something like: string_agg(CAST(id as varchar), ',') instead.
– JZC
Jun 22 '15 at 17:24
17
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How do I convert a NSString into a std::string?
...hiljordan.eu it could also be that the NSString is nil. In such a case the cast should be done like this:
// NOTE: if foo is nil this will produce an empty C++ string
// instead of dereferencing the NULL pointer from UTF8String.
This would lead you to such a conversion:
NSString *foo = @"Foo";
std...
How to create own dynamic type or dynamic object in C#?
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Anyone know why we have to type cast to access the Add method? That seems strange to me.
– Vimes
Aug 20 at 16:24
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How to clone ArrayList and also clone its contents?
... fields
They don't throw unnecessary checked exceptions
They don't require casts.
Consider another benefit of using copy constructors: Suppose you have a HashSet s, and you want to copy it as a TreeSet. The clone method can’t offer this functionality, but it’s easy with a conversion constructo...
What is the best way to detect a mobile device?
... attribute? I would like to run a different script if the browser is on a handheld device.
59 Answers
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Is there StartsWith or Contains in t sql with variables?
...xpress Edition%'
Example:
DECLARE @edition varchar(50);
set @edition = cast((select SERVERPROPERTY ('edition')) as varchar)
DECLARE @isExpress bit
if @edition like 'Express Edition%'
set @isExpress = 1;
else
set @isExpress = 0;
print @isExpress
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How to sum up elements of a C++ vector?
...he vector has float. The result can be subtly wrong, and the compiler will cast the result back up to a float without telling you.
– nneonneo
Feb 19 '13 at 3:30
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How do I do a 'git status' so it doesn't display untracked files without using .gitignore?
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That's a command-line operation; not a git config file edit.
– Ross Rogers
Dec 4 '17 at 17:55
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What is a bus error?
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In my case, a method static_casted a void * parameter to an object that stores a callback (one attribute points to the object and the other to the method). Then the callback is called. However, what was passed as void * was something completely differen...