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in entity framework code first, how to use KeyAttribute on multiple columns
...ke me, you prefer to use a configuration file you can do that in this way (based on Manavi's example):
public class User
{
public int UserId { get; set; }
public string Username { get; set; }
}
public class UserConfiguration : EntityTypeConfiguration<User>
{
public UserConfigur...
Regex Email validation
... here: C# – Email Regular Expression
Also, this checks for RFC validity based on email syntax, not for whether the email really exists. The only way to test that an email really exists is to send and email and have the user verify they received the email by clicking a link or entering a token.
T...
In Java, how do I parse XML as a String instead of a file?
...
I have this function in my code base, this should work for you.
public static Document loadXMLFromString(String xml) throws Exception
{
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocu...
Padding between ActionBar's home icon and title
... help you find a solution:
https://github.com/android/platform_frameworks_base/blob/master/core/res/res/values/styles.xml
(This is the actual layout used to display the home icon in an action bar)
https://github.com/android/platform_frameworks_base/blob/master/core/res/res/layout/action_bar_home.x...
How are multi-dimensional arrays formatted in memory?
...
The answer is based on the idea that C doesn't really have 2D arrays - it has arrays-of-arrays. When you declare this:
int someNumbers[4][2];
You are asking for someNumbers to be an array of 4 elements, where each element of that array...
Change a branch name in a Git repo
...y to push with git push because you gent a warning whi says Your branch is based on 'old_name, but the upstream is gone. A git push -u origin new_name solve it.
– netalex
Feb 8 '19 at 15:07
...
JavaScript closure inside loops – simple practical example
...introduces new let and const keywords that are scoped differently than var-based variables. For example, in a loop with a let-based index, each iteration through the loop will have a new variable i with loop scope, so your code would work as you expect. There are many resources, but I'd recommend 2a...
Character Limit in HTML
...t some clients don't check this. This is especcially true for mobile phone based clients.
– Drejc
Sep 22 '08 at 6:31
T...
How do I execute a stored procedure once for each row returned by query?
...n MS SQL, here's an example article
note that cursors are slower than set-based operations, but faster than manual while-loops; more details in this SO question
ADDENDUM 2: if you will be processing more than just a few records, pull them into a temp table first and run the cursor over the temp ta...
LINQ where vs takewhile
...he remaining elements.
Enumerable.Where
Filters a sequence of values based on
a predicate.
The difference is that Enumerable.TakeWhile skips the remaining elements from the first non-match whether they match the condition or not
...