в 15:31, 26 мая 2010

2010-05-26T15:31:18Z

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2010-05-26T11:38:32Z

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==An Anonymous Type Assigned to a Variable Declared with the var Keyword==

<source lang="csharp">

using System;
public class MainClass {
public static void Main() {
var unnamedTypeVar = new { firstArg = 1, secondArg = "Joe" };
Console.WriteLine(unnamedTypeVar.firstArg + ". " + unnamedTypeVar.secondArg);
}
}
</source>

==An Example of Collection Initialization==

<source lang="csharp">

using System.Collections.Generic;
using System;
public class MainClass {
public static void Main() {
List<string> presidents = new List<string> { "AAAA", "BBBBBB", "CCCCCCCC" };
foreach (string president in presidents) {
Console.WriteLine(president);
}
}
}
</source>

==Anonymous Types==

<source lang="csharp">
using System;
using System.Collections.Generic;
using System.Diagnostics;
class MainClass{
static void DisplayProcesses(Func<Process, Boolean> match) {
var processes = new List<Object>();
foreach (var process in Process.GetProcesses()) {
if (match(process)) {
processes.Add(new {
process.Id, Name = process.ProcessName,
Memory = process.WorkingSet64
});
}
}
}
static void Main(string[] args) {
DisplayProcesses(process => process.WorkingSet64 >= 20 * 1024 * 1024);
}
}
</source>

==Instantiating and Initializing an Anonymous Type Using Object Initialization==

<source lang="csharp">

using System;
public class MainClass {
public static void Main() {
var address = new {
address = "First Street",
city = "Vancouver",
state = "GA",
postalCode = "99999"
};
Console.WriteLine("address = {0} : city = {1} : state = {2} : zip = {3}",
address.address, address.city, address.state, address.postalCode);
Console.WriteLine("{0}", address.GetType().ToString());
}
}
</source>

==Using var==

<source lang="csharp">
using System;
using System.Collections.Generic;
using System.Diagnostics;
class MyPC {
public Int32 Id { get; set; }
public Int64 Memory { get; set; }
public String Name { get; set; }
}
class LanguageFeatures {
static void Main(string[] args) {
var processes = new List<MyPC>();
foreach (var process in Process.GetProcesses()) {
var data = new MyPC();
data.Id = process.Id;
data.Name = process.ProcessName;
data.Memory = process.WorkingSet64;
processes.Add(data);
}
Console.Write(processes);
}
}
</source>

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Csharp/C Sharp/LINQ/var - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия