NameObjectCollectionBase.BaseGetAllValues Method ()
.NET Framework 3.0
Returns an Object array that contains all the values in the NameObjectCollectionBase instance.
Namespace: System.Collections.Specialized
Assembly: System (in system.dll)
Assembly: System (in system.dll)
'Declaration Protected Function BaseGetAllValues As Object() 'Usage Dim returnValue As Object() returnValue = Me.BaseGetAllValues
protected Object[] BaseGetAllValues ()
protected function BaseGetAllValues () : Object[]
Not applicable.
Return Value
An Object array that contains all the values in the NameObjectCollectionBase instance.The following code example uses BaseGetAllKeys and BaseGetAllValues to get an array of the keys or an array of the values.
Imports System Imports System.Collections Imports System.Collections.Specialized Public Class MyCollection Inherits NameObjectCollectionBase Private _de As New DictionaryEntry() ' Gets a key-and-value pair (DictionaryEntry) using an index. Default Public ReadOnly Property Item(index As Integer) As DictionaryEntry Get _de.Key = Me.BaseGetKey(index) _de.Value = Me.BaseGet(index) Return _de End Get End Property ' Adds elements from an IDictionary into the new collection. Public Sub New(d As IDictionary) Dim de As DictionaryEntry For Each de In d Me.BaseAdd(CType(de.Key, String), de.Value) Next de End Sub 'New ' Gets a String array that contains all the keys in the collection. Public ReadOnly Property AllKeys() As String() Get Return Me.BaseGetAllKeys() End Get End Property ' Gets an Object array that contains all the values in the collection. Public ReadOnly Property AllValues() As Array Get Return Me.BaseGetAllValues() End Get End Property ' Gets a String array that contains all the values in the collection. Public ReadOnly Property AllStringValues() As String() Get Return CType(Me.BaseGetAllValues(GetType(String)), String()) End Get End Property End Class 'MyCollection Public Class SamplesNameObjectCollectionBase Public Shared Sub Main() ' Creates and initializes a new MyCollection instance. Dim d As New ListDictionary() d.Add("red", "apple") d.Add("yellow", "banana") d.Add("green", "pear") Dim myCol As New MyCollection(d) Console.WriteLine("Initial state of the collection (Count = {0}):", myCol.Count) PrintKeysAndValues(myCol) ' Displays the list of keys. Console.WriteLine("The list of keys:") Dim s As String For Each s In myCol.AllKeys Console.WriteLine(" {0}", s) Next s ' Displays the list of values of type Object. Console.WriteLine("The list of values (Object):") Dim o As Object For Each o In myCol.AllValues Console.WriteLine(" {0}", o.ToString()) Next o ' Displays the list of values of type String. Console.WriteLine("The list of values (String):") For Each s In myCol.AllValues Console.WriteLine(" {0}", s) Next s End Sub 'Main Public Shared Sub PrintKeysAndValues(myCol As MyCollection) Dim i As Integer For i = 0 To myCol.Count - 1 Console.WriteLine("[{0}] : {1}, {2}", i, myCol(i).Key, myCol(i).Value) Next i End Sub 'PrintKeysAndValues End Class 'SamplesNameObjectCollectionBase 'This code produces the following output. ' 'Initial state of the collection (Count = 3): '[0] : red, apple '[1] : yellow, banana '[2] : green, pear 'The list of keys: ' red ' yellow ' green 'The list of values (Object): ' apple ' banana ' pear 'The list of values (String): ' apple ' banana ' pear
import System.* ;
import System.Collections.* ;
import System.Collections.Specialized.* ;
public class MyCollection extends NameObjectCollectionBase
{
private DictionaryEntry _de = new DictionaryEntry();
// Gets a key-and-value pair (DictionaryEntry) using an index.
/** @property
*/
public DictionaryEntry get_Item(int index)
{
_de.set_Key(this.BaseGetKey(index));
_de.set_Value(this.BaseGet(index));
return _de ;
} //get_Item
// Adds elements from an IDictionary into the new collection.
public MyCollection(IDictionary d)
{
IDictionaryEnumerator objEnum = d.GetEnumerator();
while (objEnum.MoveNext()) {
DictionaryEntry de = (DictionaryEntry)objEnum.get_Current();
this.BaseAdd(((String)(de.get_Key())), de.get_Value());
}
} //MyCollection
// Gets a String array that contains all the keys in the collection.
/** @property
*/
public String[] get_AllKeys()
{
return this.BaseGetAllKeys() ;
} //get_AllKeys
// Gets an Object array that contains all the values in the collection.
/** @property
*/
public Array get_AllValues()
{
return this.BaseGetAllValues() ;
} //get_AllValues
// Gets a String array that contains all the values in the collection.
/** @property
*/
public String[] get_AllStringValues()
{
return ((String[])(this.BaseGetAllValues(Type.GetType("System.String"))));
} //get_AllStringValues
} //MyCollection
public class SamplesNameObjectCollectionBase
{
public static void main(String[] args)
{
// Creates and initializes a new MyCollection instance.
IDictionary d = new ListDictionary();
d.Add("red", "apple");
d.Add("yellow", "banana");
d.Add("green", "pear");
MyCollection myCol = new MyCollection(d);
Console.WriteLine("Initial state of the collection (Count = {0}):",
System.Convert.ToString(myCol.get_Count()));
PrintKeysAndValues(myCol);
// Displays the list of keys.
Console.WriteLine("The list of keys:");
String str = new String();
for (int iCtr = 0; iCtr < myCol.get_Count(); iCtr++) {
str = myCol.get_AllKeys()[iCtr];
Console.WriteLine(" {0}", str);
}
// Displays the list of values of type Object.
Console.WriteLine("The list of values (Object):");
Object obj = new Object();
for (int iCtr=0; iCtr < myCol.get_Count(); iCtr++) {
obj = System.Convert.ToString(myCol.get_AllValues().get_Item(iCtr));
Console.WriteLine(" {0}", System.Convert.ToString(obj));
}
// Displays the list of values of type String.
Console.WriteLine("The list of values (String):");
for (int iCtr =0; iCtr < myCol.get_AllValues().get_Count(); iCtr++) {
str = System.Convert.ToString(myCol.get_AllValues().get_Item(iCtr));
Console.WriteLine(" {0}", str);
}
} //main
public static void PrintKeysAndValues(MyCollection myCol)
{
for (int i = 0; i < myCol.get_Count(); i++) {
Console.WriteLine("[{0}] : {1}, {2}",System.Convert.ToString(i),
myCol.get_Item(i).get_Key(), myCol.get_Item(i).get_Value());
}
} //PrintKeysAndValues
} //SamplesNameObjectCollectionBase
/*
This code produces the following output.
Initial state of the collection (Count = 3):
[0] : red, apple
[1] : yellow, banana
[2] : green, pear
The list of keys:
red
yellow
green
The list of values (Object):
apple
banana
pear
The list of values (String):
apple
banana
pear
*/
Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.Community Additions
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