StringDictionary.CopyTo Method (Array, Int32)
Copies the string dictionary values to a one-dimensional Array instance at the specified index.
Assembly: System (in System.dll)
Parameters
- array
-
Type:
System.Array
The one-dimensional Array that is the destination of the values copied from the StringDictionary.
- index
-
Type:
System.Int32
The index in the array where copying begins.
| Exception | Condition |
|---|---|
| ArgumentException | array is multidimensional. -or- The number of elements in the StringDictionary is greater than the available space from index to the end of array. |
| ArgumentNullException | array is null. |
| ArgumentOutOfRangeException | index is less than the lower bound of array. |
CopyTo copies objects that can be typecast to System.Collections.DictionaryEntry. DictionaryEntry contains both the key and the value.
The elements copied to the Array are sorted in the same order that the enumerator iterates through the StringDictionary.
This method is an O(n) operation, where n is Count.
The following code example shows how a StringDictionary can be copied to an array.
Imports System Imports System.Collections Imports System.Collections.Specialized Imports Microsoft.VisualBasic Public Class SamplesStringDictionary Public Shared Sub Main() ' Creates and initializes a new StringDictionary. Dim myCol As New StringDictionary() myCol.Add("red", "rojo") myCol.Add("green", "verde") myCol.Add("blue", "azul") ' Displays the values in the StringDictionary. Console.WriteLine("KEYS" + ControlChars.Tab + "VALUES in the StringDictionary") Dim myDE As DictionaryEntry For Each myDE In myCol Console.WriteLine("{0}" + ControlChars.Tab + "{1}", myDE.Key, myDE.Value) Next myDE Console.WriteLine() ' Creates an array with DictionaryEntry elements. Dim myArr As DictionaryEntry() = {New DictionaryEntry(), New DictionaryEntry(), New DictionaryEntry()} ' Copies the StringDictionary to the array. myCol.CopyTo(myArr, 0) ' Displays the values in the array. Console.WriteLine("KEYS" + ControlChars.Tab + "VALUES in the array") Dim i As Integer For i = 0 To myArr.Length - 1 Console.WriteLine("{0}" + ControlChars.Tab + "{1}", myArr(i).Key, myArr(i).Value) Next i Console.WriteLine() End Sub 'Main End Class 'SamplesStringDictionary 'This code produces the following output. ' 'KEYS VALUES in the StringDictionary 'green verde 'red rojo 'blue azul ' 'KEYS VALUES in the array 'green verde 'red rojo 'blue azul
Available since 10
.NET Framework
Available since 1.1