SortedList.GetByIndex Method
Gets the value at the specified index of a SortedList object.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- index
- Type: System.Int32
The zero-based index of the value to get.
| Exception | Condition |
|---|---|
| ArgumentOutOfRangeException | index is outside the range of valid indexes for the SortedList object. |
The index sequence is based on the sort sequence. When an element is added, it is inserted into SortedList in the correct sort order, and the indexing adjusts accordingly. When an element is removed, the indexing also adjusts accordingly. Therefore, the index of a specific key/value pair might change as elements are added or removed from the SortedList object.
This method is an O(1) operation.
The following code example shows how to get one or all the keys or values in a SortedList object.
Imports System Imports System.Collections Imports Microsoft.VisualBasic Public Class SamplesSortedList Public Shared Sub Main() ' Creates and initializes a new SortedList. Dim mySL As New SortedList() mySL.Add(1.3, "fox") mySL.Add(1.4, "jumped") mySL.Add(1.5, "over") mySL.Add(1.2, "brown") mySL.Add(1.1, "quick") mySL.Add(1.0, "The") mySL.Add(1.6, "the") mySL.Add(1.8, "dog") mySL.Add(1.7, "lazy") ' Gets the key and the value based on the index. Dim myIndex As Integer = 3 Console.WriteLine("The key at index {0} is {1}.", myIndex, _ mySL.GetKey(myIndex)) Console.WriteLine("The value at index {0} is {1}.", myIndex, _ mySL.GetByIndex(myIndex)) ' Gets the list of keys and the list of values. Dim myKeyList As IList = mySL.GetKeyList() Dim myValueList As IList = mySL.GetValueList() ' Prints the keys in the first column and the values in the second column. Console.WriteLine(ControlChars.Tab & "-KEY-" & ControlChars.Tab & _ "-VALUE-") Dim i As Integer For i = 0 To mySL.Count - 1 Console.WriteLine(ControlChars.Tab & "{0}" & ControlChars.Tab & _ "{1}", myKeyList(i), myValueList(i)) Next i End Sub End Class ' This code produces the following output. ' ' The key at index 3 is 1.3. ' The value at index 3 is fox. ' -KEY- -VALUE- ' 1 The ' 1.1 quick ' 1.2 brown ' 1.3 fox ' 1.4 jumped ' 1.5 over ' 1.6 the ' 1.7 lazy ' 1.8 dog
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.