CodeExpressionCollection.Contains(CodeExpression) Method

Reference

Definition

Namespace:: System.CodeDom

Assembly:: System.CodeDom.dll

Assembly:: System.dll

Package:: System.CodeDom v10.0.0-preview.1.25080.5

Source:: CodeExpressionCollection.cs

Source:: CodeExpressionCollection.cs

Source:: CodeExpressionCollection.cs

Source:: CodeExpressionCollection.cs

Source:: CodeExpressionCollection.cs

Important

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Gets a value that indicates whether the collection contains the specified CodeExpression object.

public:
 bool Contains(System::CodeDom::CodeExpression ^ value);

public bool Contains(System.CodeDom.CodeExpression value);

member this.Contains : System.CodeDom.CodeExpression -> bool

Public Function Contains (value As CodeExpression) As Boolean

Parameters

value: CodeExpression

The CodeExpression object to locate in the collection.

Returns

Boolean

true if the collection contains the specified object; otherwise, false.

Examples

The following example uses the Contains method to search for the presence of a specific CodeExpression object and gets the index value at which it was found.

// 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 );

// 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 );

' 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

Applies to

Product	Versions
.NET	8 (package-provided), 9 (package-provided), 10 (package-provided)
.NET Framework	1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	2.0 (package-provided)
Windows Desktop	3.0, 3.1, 5, 6, 7, 8, 9, 10

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