C# ArrayList.InsertRange()用法及代码示例

C#中的ArrayList.InsertRange(Int32，ICollection)方法用于将集合中的元素插入到指定索引处的ArrayList中。那就是插入的元素属于一个集合(即队列等)。

用法:

public virtual void InsertRange (int index, ICollection element);

参数：

index：这是索引，要在其中插入新元素。
element：这是ICollection，其元素将以指定的索引插入到ArrayList中。

注意： 集合不能为null，但可以包含null的元素。

异常：

ArgumentNullException：如果元素为null。
ArgumentOutOfRangeException：如果索引小于零或索引大于计数器。
NotSupportedException：如果ArrayList为只读或ArrayList具有固定大小。

示例1:

// C# program to demonstrate the  
// ArrayList.InsertRange(Int32,  
// ICollection) Method 
using System; 
using System.Collections; 
  
class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
        // initializes a new ArrayList 
        ArrayList ArrList = new ArrayList(); 
  
        // adding values in the  
        // ArrayList using "Add" 
        ArrList.Add("A"); 
        ArrList.Add("D"); 
        ArrList.Add("E"); 
        ArrList.Add("F"); 
  
        // initializes a new Stack 
        // as collection 
        Stack s = new Stack(); 
  
        // pushing values in the stack 
        // values are pop as B, C 
        s.Push("C"); 
        s.Push("B"); 
  
        // Displays the ArrayList and the Queue 
        Console.WriteLine("The ArrayList initially has:"); 
        Display(ArrList); 
        Console.WriteLine("The collection initially has:"); 
        Display(s); 
  
        // Copies the elements of the stack  
        // to the ArrayList at index 1. 
        ArrList.InsertRange(1, s); 
  
        // Displays the ArrayList. 
        Console.WriteLine("After insert the collection in the ArrList:"); 
        Display(ArrList); 
    } 
  
    // Display function 
    public static void Display(IEnumerable ArrList) 
    { 
        foreach(Object a in ArrList) 
        { 
            Console.Write("   " + a); 
        } 
        Console.WriteLine(); 
    } 
}

输出：

The ArrayList initially has:
   A   D   E   F
The collection initially has:
   B   C
After insert the collection in the ArrList:
   A   B   C   D   E   F

示例2:+

// C# program to demonstrate the  
// ArrayList.InsertRange(Int32,  
// ICollection) Method 
using System; 
using System.Collections; 
  
class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
        // initializes a new ArrayList 
        ArrayList ArrList = new ArrayList(); 
  
        // adding values in the ArrayList 
        // using "Insert" method 
        ArrList.Insert(0, "A"); 
        ArrList.Insert(1, "D"); 
        ArrList.Insert(2, "E"); 
        ArrList.Insert(3, "G"); 
  
        // Initializes a new Stack 
        // as collection 
        Stack s = new Stack(); 
  
        // pushing values in the stack 
        // values are pop as B, C 
        s.Push("C"); 
        s.Push("B"); 
  
        // Displays the ArrayList and the Queue. 
        Console.WriteLine("The ArrayList initially has:"); 
        Display(ArrList); 
        Console.WriteLine("The collection initially has:"); 
        Display(s); 
  
        // Copies the elements of the stack  
        // to the ArrayList at index 1. 
        ArrList.InsertRange(1, s); 
  
        // Displays the ArrayList. 
        Console.WriteLine("After insert the collection in the ArrList:"); 
        Display(ArrList); 
  
        // insert F by finding the index of G 
        // using IndexOf() method 
        ArrList.Insert(ArrList.IndexOf("G"), "F"); 
        Console.WriteLine("After inserting F before G:"); 
        Display(ArrList); 
    } 
  
    // Display function 
    public static void Display(IEnumerable ArrList) 
    { 
        foreach(Object a in ArrList) 
        { 
            Console.Write(" " + a); 
        } 
        Console.WriteLine(); 
    } 
}

输出：

The ArrayList initially has:
 A D E G
The collection initially has:
 B C
After insert the collection in the ArrList:
 A B C D E G
After inserting F before G:
 A B C D E F G

参考：

https://docs.microsoft.com/en-us/dotnet/api/system.collections.arraylist.insertrange?view=netframework-4.8

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注：本文由纯净天空筛选整理自SoumikMondal大神的英文原创作品 C# | ArrayList.InsertRange() Method。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。