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Creating an Android trial application that expires after a fixed time period
...) {
@Override
public void onResult(int status, long timeRemaining, String sku) {
switch (status){
case STATUS_TRIAL_JUST_STARTED:
//The trial has just started - enable the premium features for the user
break;
case STATUS_TRIAL_...
Calculate the execution time of a method
....Diagnostics;
using System.Threading;
class Program
{
static void Main(string[] args)
{
Stopwatch stopWatch = new Stopwatch();
stopWatch.Start();
Thread.Sleep(10000);
stopWatch.Stop();
// Get the elapsed time as a TimeSpan value.
TimeSpan ts = ...
Removing the remembered login and password list in SQL Server Management Studio
...t.SqlServer.Management.UserSettings;
class Program
{
static void Main(string[] args)
{
var settingsFile = new FileInfo(@"C:\Users\%username%\AppData\Roaming\Microsoft\SQL Server Management Studio\13.0\SqlStudio.bin");
// Backup our original file just in case...
File...
how to check if object already exists in a list
...r data structure. For example,
public class MyClass
{
public string Property1 { get; set; }
public string Property2 { get; set; }
}
public class MyClassComparer : EqualityComparer<MyClass>
{
public override bool Equals(MyClass x, MyClass y)
{...
Swift 编程语言入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...
let label = "The width is "
let width = 94
let widthLabel = label + String(width)
Note
练习
尝试删除最后一行的String转换，你会得到什么错误？
还有更简单的方法来在字符串中包含值：以小括号来写值，并用反斜线("")放在小括号之前...
Convert NSData to String?
...
Objective-C
You can use (see NSString Class Reference)
- (id)initWithData:(NSData *)data encoding:(NSStringEncoding)encoding
Example:
NSString *myString = [[NSString alloc] initWithData:myData encoding:NSUTF8StringEncoding];
Remark: Please notice the NSD...
RESTful password reset
...Note: As @DougDomeny mentioned in his comment passing the email as a query string in the url is a security risk. GET parameters are not exposed when using https (and you should always use a proper https connection for such requests) but there are other security risks involved. You can read more on t...
A definitive guide to API-breaking changes in .NET
...nge
public void Foo(int a) { }
API After Change
public void Foo(int a, string b = null) { }
Sample client code that is broken afterwards
Foo(5);
The client code needs to be recompiled into Foo(5, null) at the bytecode level. The called assembly will only contain Foo(int, string), not Foo(in...
What is the correct JSON content type?
...
{
@Override
public void onActionFailed(Form form, int httpStatus, String responseText)
{
MessageBox.alert("Error");
}
@Override
public void onActionComplete(Form form, int httpStatus, String responseText)
{
MessageBox.alert("Success");
}
});
In c...
How do you avoid over-populating the PATH Environment Variable in Windows?
...cessible through the command line, but now I come to the limit of the path string, so i can't add any more dir.
12 Answers
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