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ASP.NET MVC Conditional validation
... ValidationResult("Description must be supplied.");
}
}
Read more at Introducing ASP.NET MVC 3 (Preview 1).
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What's the best method in ASP.NET to obtain the current domain?
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As per this link a good starting point is:
Request.Url.Scheme + System.Uri.SchemeDelimiter + Request.Url.Host
However, if the domain is http://www.domainname.com:500 this will fail.
Something like the following is tempting to resolve this:
int defaultPor...
Sort an Array by keys based on another Array?
...erge. array_merge combine both value instead of replacing the second array into the ordered keys.
– neofreko
Nov 12 '14 at 6:26
3
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Is there a foreach loop in Go?
...l will gracefully exit the loop if the writer closes the channel at some point. In the for {v := <-theChan} equivalent, it will not exit on channel close. You can test for this via the second ok return value. TOUR EXAMPLE
– colm.anseo
Oct 10 '17 at 22:25
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Binary Data in MySQL [closed]
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For a table like this:
CREATE TABLE binary_data (
id INT(4) NOT NULL AUTO_INCREMENT PRIMARY KEY,
description CHAR(50),
bin_data LONGBLOB,
filename CHAR(50),
filesize CHAR(50),
filetype CHAR(50)
);
Here is a PHP example:
<?php
// store.php3 - by Flo...
What is Python used for? [closed]
...Python is dynamically typed: it means that you don't declare a type (e.g. 'integer') for a variable name, and then assign something of that type (and only that type). Instead, you have variable names, and you bind them to entities whose type stays with the entity itself. a = 5 makes the variable nam...
How to retrieve a file from a server via SFTP?
...session = jsch.getSession( "remote-username", "remote-host" );
{
// "interactive" version
// can selectively update specified known_hosts file
// need to implement UserInfo interface
// MyUserInfo is a swing implementation provided in
// examples/Sftp.java in the JSch dist
UserInf...
What's an easy way to read random line from a file in Unix command line?
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perl -e 'srand; rand($.) < 1 && ($line = $_) while <>; print $line;' file
This has a significant advantage in space over reading the whole file in. You can find a proof of this method in The Art of Computer Programming, Volume 2, Section 3.4.2, by Donald E. Knuth.
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Fundamental difference between Hashing and Encryption algorithms
...Interviewer wanted the below answer.
Hashing is one way . You can not get convert your data/ string from a hash code.
Encryption is 2 way - you can decrypt again the encrypted string if you have the key with you.
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Remove all subviews?
...erformSelector:@selector(removeFromSuperview)];
Thank you to Tommy for pointing out that makeObjectsPerformSelector: appears to modify the subviews array while it is being enumerated (which it does for NSView, but not for UIView).
Please see this SO question for more details.
Note: Using either ...