本文整理匯總了VB.NET中System.Array.AsReadOnly<T>方法的典型用法代碼示例。如果您正苦於以下問題：VB.NET Array.AsReadOnly<T>方法的具體用法？VB.NET Array.AsReadOnly<T>怎麽用？VB.NET Array.AsReadOnly<T>使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Array的用法示例。
在下文中一共展示了Array.AsReadOnly<T>方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: SamplesArray
' 導入命名空間
Imports System.Collections.Generic
Public Class SamplesArray
Public Shared Sub Main()
' Create and initialize a new string array.
Dim myArr As String() = {"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.
Dim myList As IList(Of String) = 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 e As NotSupportedException
Console.WriteLine("{0} - {1}", e.GetType(), e.Message)
Console.WriteLine()
End Try
' 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)
End Sub
Overloads Public Shared Sub PrintIndexAndValues(myArr() As String)
Dim i As Integer
For i = 0 To myArr.Length - 1
Console.WriteLine(" [{0}] : {1}", i, myArr(i))
Next i
Console.WriteLine()
End Sub
Overloads Public Shared Sub PrintIndexAndValues(myList As IList(Of String))
Dim i As Integer
For i = 0 To myList.Count - 1
Console.WriteLine(" [{0}] : {1}", i, myList(i))
Next i
Console.WriteLine()
End Sub
End Class輸出：
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