CodeExpressionCollection Class

Definition

Namespace:

System.CodeDom

Assembly:

System.CodeDom.dll

Represents a collection of CodeExpression objects.

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 = gcnew CodeExpressionCollection;

// Adds a CodeExpression to the collection.
collection->Add( gcnew CodePrimitiveExpression( true ) );

// Adds an array of CodeExpression objects to the collection.
array<CodeExpression^>^expressions = {gcnew CodePrimitiveExpression( true ),gcnew CodePrimitiveExpression( true )};
collection->AddRange( expressions );

// Adds a collection of CodeExpression objects to the collection.
CodeExpressionCollection^ expressionsCollection = gcnew CodeExpressionCollection;
expressionsCollection->Add( gcnew CodePrimitiveExpression( true ) );
expressionsCollection->Add( gcnew 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 = gcnew 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, gcnew CodePrimitiveExpression( true ) );

// Removes the specified CodeExpression from the collection.
CodeExpression^ expression = gcnew CodePrimitiveExpression( true );
collection->Remove( expression );

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

// 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.

Constructors

CodeExpressionCollection()	Initializes a new instance of the CodeExpressionCollection class.
CodeExpressionCollection(CodeExpression[])	Initializes a new instance of the CodeExpressionCollection class containing the specified array of CodeExpression objects.
CodeExpressionCollection(CodeExpressionCollection)	Initializes a new instance of the CodeExpressionCollection class containing the elements of the specified source collection.

Properties

Capacity	Gets or sets the number of elements that the CollectionBase can contain. (Inherited from CollectionBase)
Count	Gets the number of elements contained in the CollectionBase instance. This property cannot be overridden. (Inherited from CollectionBase)
InnerList	Gets an ArrayList containing the list of elements in the CollectionBase instance. (Inherited from CollectionBase)
Item[Int32]	Gets or sets the CodeExpression object at the specified index in the collection.
List	Gets an IList containing the list of elements in the CollectionBase instance. (Inherited from CollectionBase)

Methods

Add(CodeExpression)	Adds the specified CodeExpression object to the collection.
AddRange(CodeExpression[])	Copies the elements of the specified array to the end of the collection.
AddRange(CodeExpressionCollection)	Copies the contents of another CodeExpressionCollection object to the end of the collection.
Clear()	Removes all objects from the CollectionBase instance. This method cannot be overridden. (Inherited from CollectionBase)
Contains(CodeExpression)	Gets a value that indicates whether the collection contains the specified CodeExpression object.
CopyTo(CodeExpression[], Int32)	Copies the collection objects to a one-dimensional Array instance beginning at the specified index.
Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetEnumerator()	Returns an enumerator that iterates through the CollectionBase instance. (Inherited from CollectionBase)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetType()	Gets the Type of the current instance. (Inherited from Object)
IndexOf(CodeExpression)	Gets the index of the specified CodeExpression object in the collection, if it exists in the collection.
Insert(Int32, CodeExpression)	Inserts the specified CodeExpression object into the collection at the specified index.
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
OnClear()	Performs additional custom processes when clearing the contents of the CollectionBase instance. (Inherited from CollectionBase)
OnClearComplete()	Performs additional custom processes after clearing the contents of the CollectionBase instance. (Inherited from CollectionBase)
OnInsert(Int32, Object)	Performs additional custom processes before inserting a new element into the CollectionBase instance. (Inherited from CollectionBase)
OnInsertComplete(Int32, Object)	Performs additional custom processes after inserting a new element into the CollectionBase instance. (Inherited from CollectionBase)
OnRemove(Int32, Object)	Performs additional custom processes when removing an element from the CollectionBase instance. (Inherited from CollectionBase)
OnRemoveComplete(Int32, Object)	Performs additional custom processes after removing an element from the CollectionBase instance. (Inherited from CollectionBase)
OnSet(Int32, Object, Object)	Performs additional custom processes before setting a value in the CollectionBase instance. (Inherited from CollectionBase)
OnSetComplete(Int32, Object, Object)	Performs additional custom processes after setting a value in the CollectionBase instance. (Inherited from CollectionBase)
OnValidate(Object)	Performs additional custom processes when validating a value. (Inherited from CollectionBase)
Remove(CodeExpression)	Removes the specified CodeExpression object from the collection.
RemoveAt(Int32)	Removes the element at the specified index of the CollectionBase instance. This method is not overridable. (Inherited from CollectionBase)
ToString()	Returns a string that represents the current object. (Inherited from Object)

Extension Methods

See also

• CodeExpression