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How to add item to the beginning of List?
I want to add a "Select One" option to a drop down list bound to a List<T> .
5 Answers
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is there an easy way to get the http status code in the failure block from AFHTTPClient?
I see that there is a list of accepted http status codes that I can modify, but I think it would be cleaner if I can get the http status code in the failure block ..
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How do I check out a specific version of a submodule using 'git submodule'?
How would I go about adding a Git submodule for a specific tag or commit?
2 Answers
2
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How to use sessions in an ASP.NET MVC 4 application?
I am new to ASP.NET MVC. I have used PHP before and it was easy to create a session and select user records based on the current session variables.
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How can I list ALL grants a user received?
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If you want more than just direct table grants (e.g., grants via roles, system privileges such as select any table, etc.), here are some additional queries:
System privileges for a user:
SELECT PRIVILEGE
FROM sys.dba_sys_privs...
What is the difference between “AS” and “IS” in an Oracle stored procedure?
I see Oracle procedures sometimes written with "AS", and sometimes with "IS" keyword.
6 Answers
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Get value of dynamically chosen class constant in PHP
I would like to be able to do something like this:
7 Answers
7
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How does Haskell printf work?
Haskell's type safety is second to none only to dependently-typed languages. But there is some deep magic going on with Text.Printf that seems rather type-wonky.
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To find whether a column exists in data frame or not
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Assuming that the name of your data frame is dat and that your column name to check is "d", you can use the %in% operator:
if("d" %in% colnames(dat))
{
cat("Yep, it's in there!\n");
}
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iPhone - Get Position of UIView within entire UIWindow
The position of a UIView can obviously be determined by view.center or view.frame etc. but this only returns the position of the UIView in relation to it's immediate superview.
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