в 15:31, 26 мая 2010

2010-05-26T15:31:53Z

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2010-05-26T12:17:50Z

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==Deeper Reflection: iterate through the fields of the class==

<source lang="csharp">using System;
using System.Reflection;
class MyClass
{
MyClass() {}
static void Process()
{
}

public int MyFunction(int i, Decimal d, string[] args)
{
return(0);
}
public int value = 0;
public float log = 1.0f;
public static int value2 = 44;
}
class MainClass
{
public static void Main(String[] args)
{
//
Console.WriteLine("Fields of MyClass");
Type t = typeof (MyClass);
foreach (MemberInfo m in t.GetFields())
{
Console.WriteLine("{0}", m);
}

}
}</source>
<pre class=codeResult>Fields of MyClass
Int32 value
Single log
Int32 value2</pre>

==Get all fields from a Type==

<source lang="csharp">using System;
using System.Reflection;
class MyClass
{
public int Field1;
public int Field2;
public void Method1() { }
public int Method2() { return 1; }
}
class MainClass
{
static void Main()
{
Type t = typeof(MyClass);
FieldInfo[] fi = t.GetFields();
foreach (FieldInfo f in fi)
Console.WriteLine("Field : {0}", f.Name);
}
}</source>
<pre class=codeResult>Field : Field1
Field : Field2</pre>

==Get/set a field using a FieldInfo==

<source lang="csharp">using System;
using System.Reflection;
using System.Windows.Forms;
public class Class1
{
static void Main( string[] args )
{
Type type = typeof(MyClass);
object o = Activator.CreateInstance(type);

FieldInfo field = type.GetField("text", BindingFlags.NonPublic | BindingFlags.Instance);
field.SetValue(o, "www.domain.ru");
string text = (string)field.GetValue(o);

Console.WriteLine(text);

}
private static void OnChanged(object sender , System.EventArgs e)
{
Console.WriteLine(((MyClass)sender).Text);
}
}
public class MyClass
{
private string text;

public string Text
{
get{ return text; }
set
{
text = value;
OnChanged();
}
}

private void OnChanged()
{
if( Changed != null )
Changed(this, System.EventArgs.Empty);
}

public event EventHandler Changed;
}</source>

==List Fields==

<source lang="csharp">using System;
using System.Reflection;
public interface IFaceOne
{
void MethodA();
}
public interface IFaceTwo
{
void MethodB();
}
public class MyClass: IFaceOne, IFaceTwo
{
public enum MyNestedEnum{}

public int myIntField;
public string myStringField;
public void myMethod(int p1, string p2)
{
}
public int MyProp
{
get { return myIntField; }
set { myIntField = value; }
}
void IFaceOne.MethodA(){}
void IFaceTwo.MethodB(){}
}
public class MainClass
{
public static void Main(string[] args)
{
MyClass f = new MyClass();
Type t = f.GetType();
FieldInfo[] fi = t.GetFields();
foreach(FieldInfo field in fi)
Console.WriteLine("Field: {0}", field.Name);
}
}</source>
<pre class=codeResult>Field: myIntField
Field: myStringField</pre>

==Reflecting On Members Of A Type==

<source lang="csharp">using System;
using System.Collections.Generic;
using System.Reflection;
using System.Text;
public class Tester
{
public static void Main()
{
Type theType = Type.GetType("System.Reflection.Assembly" );
Console.WriteLine("\nSingle Type is {0}\n", theType );
MemberInfo[] mbrInfoArray =theType.GetMembers();
foreach ( MemberInfo mbrInfo in mbrInfoArray )
{
Console.WriteLine( "{0} is a {1}",mbrInfo, mbrInfo.MemberType );
}
}
}</source>

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Csharp/CSharp Tutorial/Reflection/Field - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия