访问类的方法和属性
using System;
using System.Reflection;
using System.Collections.Generic;
using System.Runtime.CompilerServices;
class Example
{
private static int _staticProperty = 41;
public static int StaticProperty
{
get
{
return _staticProperty;
}
set
{
_staticProperty = value;
}
}
private int _instanceProperty = 42;
public int InstanceProperty
{
get
{
return _instanceProperty;
}
set
{
_instanceProperty = value;
}
}
private Dictionary
new Dictionary
// By default, the indexer is named Item, and that name must be used
// to search for the property. In this example, the indexer is given
// a different name by using the IndexerNameAttribute attribute.
[IndexerNameAttribute("IndexedInstanceProperty")]
public string this[int key]
{
get
{
string returnValue = https://www.it610.com/article/null;
if (_indexedInstanceProperty.TryGetValue(key, out returnValue))
{
return returnValue;
}
else
{
return null;
}
}
set
{
if (value =https://www.it610.com/article/= null)
{
throw new ApplicationException("IndexedInstanceProperty value can be the empty string, but it cannot be Nothing.");
}
else
{
if (_indexedInstanceProperty.ContainsKey(key))
{
_indexedInstanceProperty[key] = value;
}
else
{
_indexedInstanceProperty.Add(key, value);
}
}
}
}
public static void Main()
{
Console.WriteLine("Initial value of class-level property: {0}",
Example.StaticProperty);
PropertyInfo piShared = typeof(Example).GetProperty("StaticProperty");
piShared.SetValue(null, 76, null);
Console.WriteLine("Final value of class-level property: {0}",
Example.StaticProperty);
Example exam = new Example();
Console.WriteLine("\nInitial value of instance property: {0}",
exam.InstanceProperty);
PropertyInfo piInstance =
typeof(Example).GetProperty("InstanceProperty");
piInstance.SetValue(exam, 37, null);
Console.WriteLine("Final value of instance property: {0}",
exam.InstanceProperty);
exam[17] = "String number 17";
exam[46] = "String number 46";
exam[9] = "String number 9";
【访问类的方法和属性】Console.WriteLine(
"\nInitial value of indexed instance property(17): '{0}'",
exam[17]);
// By default, the indexer is named Item, and that name must be used
// to search for the property. In this example, the indexer is given
// a different name by using the IndexerNameAttribute attribute.
PropertyInfo piIndexedInstance =
typeof(Example).GetProperty("IndexedInstanceProperty");
piIndexedInstance.SetValue(
exam,
"New value for string number 17",
new object[] { (int) 17 });
Console.WriteLine(
"Final value of indexed instance property(17): '{0}'",
exam[17]);
}
}
/* This example produces the following output:
Initial value of class-level property: 41
Final value of class-level property: 76
Initial value of instance property: 42
Final value of instance property: 37
Initial value of indexed instance property(17): 'String number 17'
Final value of indexed instance property(17): 'New value for string number 17'
*/
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