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How do you convert a DataTable into a generic list?
...ataTable
//using lamdaexpression
emp = (from DataRow row in dt.Rows
select new Employee
{
_FirstName = row["FirstName"].ToString(),
_LastName = row["Last_Name"].ToString()
}).ToList();
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How to get std::vector pointer to the raw data?
I'm trying to use std::vector as a char array.
3 Answers
3
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Why is “int i = 2147483647 + 1;” OK, but “byte b = 127 + 1;” is not compilable?
... if the expression is a constant expression (§15.28) of type byte, short, char or int :
A narrowing primitive conversion may be used if the type of the variable is byte, short, or char, and the value of the constant expression is representable in the type of the variable.
Without this clause, ...
Number of occurrences of a character in a string [duplicate]
I am trying to get the number of occurrences of a certain character such as & in the following string.
6 Answers
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C++ catching all exceptions
... { ... }
Which will allow you do use e.what(), which will return a const char*, which can tell you more about the exception itself. This is the construct that resembles the Java construct, you asked about, the most.
This will not help you if someone is stupid enough to throw an exception that doe...
Avoid duplicates in INSERT INTO SELECT query in SQL Server
...
Using NOT EXISTS:
INSERT INTO TABLE_2
(id, name)
SELECT t1.id,
t1.name
FROM TABLE_1 t1
WHERE NOT EXISTS(SELECT id
FROM TABLE_2 t2
WHERE t2.id = t1.id)
Using NOT IN:
INSERT INTO TABLE_2
(id, name)
SELECT t1.id,
t1....
Android Studio says “cannot resolve symbol” but project compiles
...y only thought so far: right click the jar file in file tree within AS and select "Add as library..."
EDIT: You can do "File" -> "Invalidate Caches...", and select "Invalidate and Restart" option to fix this.
EDIT 2: This fix should work for all similar incidents and is not a twitter4j specific...
how to stop browser back button using javascript
...me because window.location.hash should always return the hash with the '#' character and _hash will never contains the '#' caracter. Do you recall anything on that ? Is that just a protection in case the browser does not return the '#' char in location.hash ?
– baraber
...
What is a C++ delegate?
...lic:
virtual void Fn( int i )
{
}
};
int main( int /*argc*/, char * /*argv*/ )
{
A a;
CCallback<A> cbk( a, &A::Fn );
cbk.Execute( 3 );
}
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Why does this C++ snippet compile (non-void function does not return a value) [duplicate]
...e possible types and the caller might need to cast it or extract it from a union.
So the deepest cause is probably the C language creators' belief that procedures that do not return any value are just an unimportant special case of functions that do; this problem got aggravated by the lack of focus...