本文整理汇总了C#中System.Array.AsReadOnly<T>方法的典型用法代码示例。如果您正苦于以下问题：C# Array.AsReadOnly<T>方法的具体用法？C# Array.AsReadOnly<T>怎么用？C# Array.AsReadOnly<T>使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Array的用法示例。
在下文中一共展示了Array.AsReadOnly<T>方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Main
//引入命名空间
using System;
using System.Collections.Generic;
public class SamplesArray {
public static void Main() {
// Create and initialize a new string array.
String[] myArr = { "The", "quick", "brown", "fox" };
// Display the values of the array.
Console.WriteLine( "The string array initially contains the following values:" );
PrintIndexAndValues( myArr );
// Create a read-only IList wrapper around the array.
IList<String> myList = Array.AsReadOnly( myArr );
// Display the values of the read-only IList.
Console.WriteLine( "The read-only IList contains the following values:" );
PrintIndexAndValues( myList );
// Attempt to change a value through the wrapper.
try {
myList[3] = "CAT";
}
catch ( NotSupportedException e ) {
Console.WriteLine( "{0} - {1}", e.GetType(), e.Message );
Console.WriteLine();
}
// Change a value in the original array.
myArr[2] = "RED";
// Display the values of the array.
Console.WriteLine( "After changing the third element, the string array contains the following values:" );
PrintIndexAndValues( myArr );
// Display the values of the read-only IList.
Console.WriteLine( "After changing the third element, the read-only IList contains the following values:" );
PrintIndexAndValues( myList );
}
public static void PrintIndexAndValues( String[] myArr ) {
for ( int i = 0; i < myArr.Length; i++ ) {
Console.WriteLine( " [{0}] : {1}", i, myArr[i] );
}
Console.WriteLine();
}
public static void PrintIndexAndValues( IList<String> myList ) {
for ( int i = 0; i < myList.Count; i++ ) {
Console.WriteLine( " [{0}] : {1}", i, myList[i] );
}
Console.WriteLine();
}
}输出：
The string array initially contains the following values: [0] : The [1] : quick [2] : brown [3] : fox The read-only IList contains the following values: [0] : The [1] : quick [2] : brown [3] : fox System.NotSupportedException - Collection is read-only. After changing the third element, the string array contains the following values: [0] : The [1] : quick [2] : RED [3] : fox After changing the third element, the read-only IList contains the following values: [0] : The [1] : quick [2] : RED [3] : fox