CodeExpressionCollection Class

Definition

public ref class CodeExpressionCollection : System::Collections::CollectionBase

public class CodeExpressionCollection : System.Collections.CollectionBase

type CodeExpressionCollection = class
    inherit CollectionBase

Public Class CodeExpressionCollection
Inherits CollectionBase

Inheritance

Object

CollectionBase

CodeExpressionCollection

Examples

The following example demonstrates the use of the CodeExpressionCollection class methods. The example creates a new instance of the class and uses the methods to add statements to the collection, return their index, and add or remove attributes at a specific index point.

// Creates an empty CodeExpressionCollection.
CodeExpressionCollection collection = new CodeExpressionCollection();

// Adds a CodeExpression to the collection.
collection.Add( new CodePrimitiveExpression(true) );

// Adds an array of CodeExpression objects to the collection.
CodeExpression[] expressions = { new CodePrimitiveExpression(true), new CodePrimitiveExpression(true) };
collection.AddRange( expressions );

// Adds a collection of CodeExpression objects to the collection.
CodeExpressionCollection expressionsCollection = new CodeExpressionCollection();
expressionsCollection.Add( new CodePrimitiveExpression(true) );
expressionsCollection.Add( new CodePrimitiveExpression(true) );
collection.AddRange( expressionsCollection );

// Tests for the presence of a CodeExpression in the
// collection, and retrieves its index if it is found.
CodeExpression testComment = new CodePrimitiveExpression(true);
int itemIndex = -1;
if( collection.Contains( testComment ) )
    itemIndex = collection.IndexOf( testComment );

// Copies the contents of the collection beginning at index 0 to the specified CodeExpression array.
// 'expressions' is a CodeExpression array.
collection.CopyTo( expressions, 0 );

// Retrieves the count of the items in the collection.
int collectionCount = collection.Count;

// Inserts a CodeExpression at index 0 of the collection.
collection.Insert( 0, new CodePrimitiveExpression(true) );

// Removes the specified CodeExpression from the collection.
CodeExpression expression = new CodePrimitiveExpression(true);
collection.Remove( expression );

// Removes the CodeExpression at index 0.
collection.RemoveAt(0);

' Creates an empty CodeExpressionCollection.
Dim collection As New CodeExpressionCollection()

' Adds a CodeExpression to the collection.
collection.Add(New CodePrimitiveExpression(True))

' Adds an array of CodeExpression objects to the collection.
Dim expressions As CodeExpression() = {New CodePrimitiveExpression(True), New CodePrimitiveExpression(True)}
collection.AddRange(expressions)

' Adds a collection of CodeExpression objects to the collection.
Dim expressionsCollection As New CodeExpressionCollection()
expressionsCollection.Add(New CodePrimitiveExpression(True))
expressionsCollection.Add(New CodePrimitiveExpression(True))
collection.AddRange(expressionsCollection)

' Tests for the presence of a CodeExpression in the 
' collection, and retrieves its index if it is found.
Dim testComment = New CodePrimitiveExpression(True)
Dim itemIndex As Integer = -1
If collection.Contains(testComment) Then
    itemIndex = collection.IndexOf(testComment)
End If

' Copies the contents of the collection beginning at index 0 to the specified CodeExpression array.
' 'expressions' is a CodeExpression array.
collection.CopyTo(expressions, 0)

' Retrieves the count of the items in the collection.
Dim collectionCount As Integer = collection.Count

' Inserts a CodeExpression at index 0 of the collection.
collection.Insert(0, New CodePrimitiveExpression(True))

' Removes the specified CodeExpression from the collection.
Dim expression = New CodePrimitiveExpression(True)
collection.Remove(expression)

' Removes the CodeExpression at index 0.
collection.RemoveAt(0)

Remarks

Provides a simple collection object that can represent a set of Code Document Object Model (CodeDOM) expression objects.

The CodeExpressionCollection class provides a simple collection object that can be used to store a set of CodeExpression objects.

See also

• CodeExpression