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StringCollection.Count Property

Gets the number of strings contained in the StringCollection.

[Visual Basic]
Public Overridable ReadOnly Property Count As Integer  Implements _
   ICollection.Count
[C#]
public virtual int Count {get;}
[C++]
public: __property virtual int get_Count();
[JScript]
public function get Count() : int;

Property Value

The number of strings contained in the StringCollection.

Implements

ICollection.Count

Example

[Visual Basic, C#, C++] The following code example copies a StringCollection to an array.

[Visual Basic] 
Imports System
Imports System.Collections
Imports System.Collections.Specialized

Public Class SamplesStringCollection   

   Public Shared Sub Main()

      ' Creates and initializes a new StringCollection.
      Dim myCol As New StringCollection()
      Dim myArr() As [String] = {"RED", "orange", "yellow", "RED", "green", "blue", "RED", "indigo", "violet", "RED"}
      myCol.AddRange(myArr)

      Console.WriteLine("Initial contents of the StringCollection:")
      PrintValues(myCol)

      ' Copies the collection to a new array starting at index 0.
      Dim myArr2(myCol.Count) As [String]
      myCol.CopyTo(myArr2, 0)

      Console.WriteLine("The new array contains:")
      Dim i As Integer
      For i = 0 To myArr2.Length - 1
         Console.WriteLine("   [{0}] {1}", i, myArr2(i))
      Next i
      Console.WriteLine()

   End Sub 'Main

   Public Shared Sub PrintValues(myCol As IEnumerable)
      Dim myEnumerator As System.Collections.IEnumerator = myCol.GetEnumerator()

      While myEnumerator.MoveNext()
         Console.WriteLine("   {0}", myEnumerator.Current)
      End While
      Console.WriteLine()

   End Sub 'PrintValues

End Class 'SamplesStringCollection 


'This code produces the following output.
'
'Initial contents of the StringCollection:
'   RED
'   orange
'   yellow
'   RED
'   green
'   blue
'   RED
'   indigo
'   violet
'   RED
'
'The new array contains:
'   [0] RED
'   [1] orange
'   [2] yellow
'   [3] RED
'   [4] green
'   [5] blue
'   [6] RED
'   [7] indigo
'   [8] violet
'   [9] RED
'


[C#] 
using System;
using System.Collections;
using System.Collections.Specialized;

public class SamplesStringCollection  {

   public static void Main()  {

      // Creates and initializes a new StringCollection.
      StringCollection myCol = new StringCollection();
      String[] myArr = new String[] { "RED", "orange", "yellow", "RED", "green", "blue", "RED", "indigo", "violet", "RED" };
      myCol.AddRange( myArr );

      Console.WriteLine( "Initial contents of the StringCollection:" );
      PrintValues( myCol );

      // Copies the collection to a new array starting at index 0.
      String[] myArr2 = new String[myCol.Count];
      myCol.CopyTo( myArr2, 0 );

      Console.WriteLine( "The new array contains:" );
      for ( int i = 0; i < myArr2.Length; i++ )  {
         Console.WriteLine( "   [{0}] {1}", i, myArr2[i] );
      }
      Console.WriteLine();

   }

   public static void PrintValues( IEnumerable myCol )  {
      System.Collections.IEnumerator myEnumerator = myCol.GetEnumerator();
      while ( myEnumerator.MoveNext() )
         Console.WriteLine( "   {0}", myEnumerator.Current );
      Console.WriteLine();
   }

}

/*
This code produces the following output.

Initial contents of the StringCollection:
   RED
   orange
   yellow
   RED
   green
   blue
   RED
   indigo
   violet
   RED

The new array contains:
   [0] RED
   [1] orange
   [2] yellow
   [3] RED
   [4] green
   [5] blue
   [6] RED
   [7] indigo
   [8] violet
   [9] RED

*/

[C++] 
#using <mscorlib.dll>
#using <System.dll>

using namespace System;
using namespace System::Collections;
using namespace System::Collections::Specialized;

void PrintValues(IEnumerable* myCol) {
   System::Collections::IEnumerator* myEnumerator = myCol->GetEnumerator();
   while (myEnumerator->MoveNext())
      Console::WriteLine(S"   {0}", myEnumerator->Current);
   Console::WriteLine();
}
int main() {

   // Creates and initializes a new StringCollection.
   StringCollection* myCol = new StringCollection();
   String* myArr[] = { S"RED", S"orange", S"yellow", S"RED", S"green", S"blue", S"RED", S"indigo", S"violet", S"RED" };
   myCol->AddRange(myArr);

   Console::WriteLine(S"Initial contents of the StringCollection:");
   PrintValues(myCol);

   // Copies the collection to a new array starting at index 0.
   String* myArr2[] = new String*[myCol->Count];
   myCol->CopyTo(myArr2, 0);

   Console::WriteLine(S"The new array contains:");
   for (int i = 0; i < myArr2->Length; i++) {
      Console::WriteLine(S"   [{0}] {1}", __box(i), myArr2->Item[i]);
   }
   Console::WriteLine();
}

/*
This code produces the following output.

Initial contents of the StringCollection:
RED
orange
yellow
RED
green
blue
RED
indigo
violet
RED

The new array contains:
[0] RED
[1] orange
[2] yellow
[3] RED
[4] green
[5] blue
[6] RED
[7] indigo
[8] violet
[9] RED

*/

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button Language Filter in the upper-left corner of the page.

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also

StringCollection Class | StringCollection Members | System.Collections.Specialized Namespace

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