大约有 19,000 项符合查询结果(耗时:0.0487秒) [XML]
C# listView, how do I add items to columns 2, 3 and 4 etc?
To add items to column 1 in my listView control ( Winform ) I'm using listView1.Items.Add , this works fine but how do I add items to columns 2 and 3 etc?
...
How should I ethically approach user password storage for later plaintext retrieval?
...t of any publicly-traded company, but storing passwords in any recoverable form would cause you to to fail several different types of security audits. The issue is not how difficult it would be for some "hacker" who got access to your database to recover the passwords. The vast majority of securit...
StringBuilder vs String concatenation in toString() in Java
...it is shorter and the compiler will in fact turn it into version 2 - no performance difference whatsoever.
More importantly given we have only 3
properties it might not make a
difference, but at what point do you
switch from concat to builder?
At the point where you're concatenating in a...
SQLAlchemy: cascade delete
...and the one I recommend, is built into your database and usually takes the form of a constraint on the foreign key declaration. In PostgreSQL it looks like this:
CONSTRAINT child_parent_id_fkey FOREIGN KEY (parent_id)
REFERENCES parent_table(id) MATCH SIMPLE
ON DELETE CASCADE
This means that when y...
Understanding ibeacon distancing
...e that the term "accuracy" here is iOS speak for distance in meters. This formula isn't perfect, but it roughly approximates what iOS does.
protected static double calculateAccuracy(int txPower, double rssi) {
if (rssi == 0) {
return -1.0; // if we cannot determine accuracy, return -1.
}
...
Retain precision with double in Java
...t values are handled in Java, see the Section 4.2.3: Floating-Point Types, Formats, and Values of the Java Language Specification.
The byte, char, int, long types are fixed-point numbers, which are exact representions of numbers. Unlike fixed point numbers, floating point numbers will some times (s...
Scalar vs. primitive data type - are they the same thing?
...enumeration types, characters, and the various representations of integers form a more general type class called scalar types. Hence, the operations you can perform on values of any scalar type are the same as those for integers.
...
Why does Python pep-8 strongly recommend spaces over tabs for indentation?
...o make all code that goes in the official python distribution consistently formatted (I hope we can agree that this is universally a Good Thing™).
Since the decision between spaces and tabs for an individual programmer is a) really a matter of taste and b) easily dealt with by technical means (ed...
Kill child process when parent process is killed
...d processes.
public enum JobObjectInfoType
{
AssociateCompletionPortInformation = 7,
BasicLimitInformation = 2,
BasicUIRestrictions = 4,
EndOfJobTimeInformation = 6,
ExtendedLimitInformation = 9,
SecurityLimitInformation = 5,
GroupInformation = 11
}
[StructLayout(Layout...
Custom domain for GitHub project pages
...pagate.
What you will get
Your content will be served from a URL of the form http://nicholasjohnson.com.
Visiting http://www.nicholasjohnson.com will return a 301 redirect to the naked domain.
The path will be respected by the redirect, so traffic to http://www.nicholasjohnson.com/angular will...