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[A]System.Web.WebPages.Razor.Configuration.HostSection cannot be cast to… web.config issue
I am getting the following error:
6 Answers
6
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How should I use try-with-resources with JDBC?
...e method:
public List<User> getUser(int userId) {
String sql = "SELECT id, username FROM users WHERE id = ?";
List<User> users = new ArrayList<>();
try (Connection con = DriverManager.getConnection(myConnectionURL);
PreparedStatement ps = con.prepareStatement(...
Difference between new and override
...y.
When you hide a method, you can still access the original method by up casting to the base class. This is useful in some scenarios, but dangerous.
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How to get the error message from the error code returned by GetLastError()?
... pointer? But passing it the pointer's address (pointer-to-a-pointer), but casting it to a regular pointer... Win32 weirdness. Thanks for the heads up, fixed it in my own code base (and my answer). Very subtle catch.
– Jamin Grey
Jan 11 '14 at 1:45
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SQL Server - stop or break execution of a SQL script
...SERROR to actually stop the script. E.g.,
:on error exit
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[SOMETABLE]') AND type in (N'U'))
RaisError ('This is not a Valid Instance Database', 15, 10)
GO
print 'Keep Working'
will output:
Msg 50000, Level 15, St...
How to convert An NSInteger to an int?
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I get a warning using the suggested "casting": Implicit conversion loses integer precision: 'NSUInteger' (aka 'unsigned long') to 'int'
– djcj
Sep 18 '14 at 16:52
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Why does Convert.ToString(null) return a different value if you cast null?
...2f10355736%2fwhy-does-convert-tostringnull-return-a-different-value-if-you-cast-null%23new-answer', 'question_page');
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How to use performSelector:withObject:afterDelay: with primitive types in Cocoa?
...trick if it is a BOOL parameter.
Pass nil for NO and self for YES. nil is cast to the BOOL value of NO. self is cast to the BOOL value of YES.
This approach breaks down if it is anything other than a BOOL parameter.
Assuming self is a UIView.
//nil will be cast to NO when the selector is perform...
Signed to unsigned conversion in C - is it always safe?
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As was previously answered, you can cast back and forth between signed and unsigned without a problem. The border case for signed integers is -1 (0xFFFFFFFF). Try adding and subtracting from that and you'll find that you can cast back and have it be correct.
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Is null check needed before calling instanceof?
...lue of the RelationalExpression is
not null and the reference could be
cast to the ReferenceType
without raising a ClassCastException.
Otherwise the result is false."
So if the operand is null, the result is false.
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