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What does principal end of an association means in 1:1 relationship in Entity framework
...ou should use:
public class Boo
{
[Key, ForeignKey("Foo")]
public string BooId{get;set;}
public Foo Foo{get;set;}
}
Or fluent mapping
modelBuilder.Entity<Foo>()
.HasOptional(f => f.Boo)
.WithRequired(s => s.Foo);
...
More elegant “ps aux | grep -v grep”
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This works for me for an arbitrary string, but not for a username, e.g. ps aux | grep '[r]oot' . Does anyone know why?
– kxsong
Oct 1 '14 at 19:41
...
What is std::string::c_str() lifetime?
...
The c_str() result becomes invalid if the std::string is destroyed or if a non-const member function of the string is called. So, usually you will want to make a copy of it if you need to keep it around.
In the case of your example, it appears that the results of c_str(...
How to check if an NSDictionary or NSMutableDictionary contains a key?
...use valueForKey for a JSON dictionary. That's because JSON can contain any string as a key. For example, if it contains "@count" as a key, then objectForKey:@"@count" will give the correct value, but valueForKey:@"@count" will give the number of key/value pairs.
– gnasher729
...
Does Ruby have a string.startswith(“abc”) built in method?
Does Ruby have a some_string.starts_with("abc") method that's built in?
4 Answers
4
...
How to insert a line break in a SQL Server VARCHAR/NVARCHAR string
...nsert-carriage-return-and-new-line-feed-in-code/
You just concatenate the string and insert a CHAR(13) where you want your line break.
Example:
DECLARE @text NVARCHAR(100)
SET @text = 'This is line 1.' + CHAR(13) + 'This is line 2.'
SELECT @text
This prints out the following:
This is line ...
How to convert array to SimpleXML
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Empty Array-values [(string)""] will be changed to an empty SimpleXML-Node instead of being left empty.
– Jonathan
Oct 23 '14 at 10:54
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How can I match on an attribute that contains a certain string?
...ch <div class="Patagonia Halbtagsarbeit">, which contains the target strings but is not a div with the given classes.
– bobince
Dec 2 '11 at 22:52
3
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How to generate unique ID with node.js
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The fastest possible way to create random 32-char string in Node is by using native crypto module:
const crypto = require("crypto");
const id = crypto.randomBytes(16).toString("hex");
console.log(id); // => f9b327e70bbcf42494ccb28b2d98e00e
...
Asp.net - Add blank item at top of dropdownlist
...
After your databind:
drpList.Items.Insert(0, new ListItem(String.Empty, String.Empty));
drpList.SelectedIndex = 0;
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