ListItemCollection.CopyTo(Array, Int32) 方法

定义

命名空间:

System.Web.UI.WebControls

程序集:

System.Web.dll

将 ListItemCollection 中的项复制到指定的 Array 中，从指定的索引开始。

public:
 virtual void CopyTo(Array ^ array, int index);

public void CopyTo (Array array, int index);

abstract member CopyTo : Array * int -> unit
override this.CopyTo : Array * int -> unit

Public Sub CopyTo (array As Array, index As Integer)

参数

array

Array

一个从零开始的 Array，它接收 ListItemCollection 的复制项。

index

Int32

指定 Array 中接收项的第一个索引。

实现

CopyTo(Array, Int32)

示例

// Copy the items in the ListItemCollection to an array before 
// deleting them.     
ListItem[] myListItemArray = new ListItem[ListBox1.Items.Count];
ListBox1.Items.CopyTo(myListItemArray, 0);

// Delete all the items from the ListBox.
ListBox1.Items.Clear();
DeleteLabel.Text = "<b>All items in the ListBox were deleted successfully." 
    + "</b><br /><b>The deleted items are:";
String listResults="";
    foreach(ListItem myItem in myListItemArray)
    {
        listResults = listResults + myItem.Text + "<br />";
    }
ResultsLabel.Text = listResults;

' Copy the items in the ListListBox1.Items to an array before 
' deleting them.     
Dim myListItemArray(ListBox1.Items.Count - 1) As ListItem
ListBox1.Items.CopyTo(myListItemArray, 0)

' Delete all the items from the ListBox.
ListBox1.Items.Clear()
DeleteLabel.Text = "<b>All items in the ListBox were deleted successfully." & _
                   "</b><br /><b>The deleted items are:"
Dim listResults As [String] = ""
Dim myItem2 As ListItem
For Each myItem2 In myListItemArray
    listResults = listResults & myItem2.Text & "<br />"
Next myItem2
ResultsLabel.Text = listResults

注解

使用此方法将 的内容 ListItemCollection 复制到指定的 中，从指定的 System.Array索引处开始。

注意

参数 array 必须是从零开始的 System.Array。

另请参阅

• Array