CodeClass2.DerivedTypes Property

public:
 property EnvDTE::CodeElements ^ DerivedTypes { EnvDTE::CodeElements ^ get(); };

[System.Runtime.InteropServices.DispId(44)]
public EnvDTE.CodeElements DerivedTypes { [System.Runtime.InteropServices.DispId(44)] [System.Runtime.InteropServices.TypeLibFunc(1024)] get; }

[<System.Runtime.InteropServices.DispId(44)>]
[<get: System.Runtime.InteropServices.DispId(44)>]
[<get: System.Runtime.InteropServices.TypeLibFunc(1024)>]
member this.DerivedTypes : EnvDTE.CodeElements

Public ReadOnly Property DerivedTypes As CodeElements

Property Value

A CodeElements collection.

Implements

Attributes

DispIdAttribute TypeLibFuncAttribute

Examples

[Visual Basic]

Sub DerivedTypesExample(ByVal dte As DTE2)  
    ' Before running this example, open a code document from a project  
    ' and place the insertion point inside a class definition.  
    Try  
        ' Retrieve the CodeClass at the insertion point.  
        Dim sel As TextSelection = _  
            CType(dte.ActiveDocument.Selection, TextSelection)  
        Dim cls As CodeClass = _  
            CType(sel.ActivePoint.CodeElement( _  
            vsCMElement.vsCMElementClass), CodeClass)  

        ' Find the namespace's children.  
        Dim types As String  
        Dim elem As CodeElement  
        For Each elem In cls.DerivedTypes  
            types &= elem.Name & vbCrLf  
        Next  

        MsgBox(cls.Name & " has the following derived types:" & _  
            vbCrLf & vbCrLf & types)  
    Catch ex As Exception  
        MsgBox(ex.Message)  
    End Try  
End Sub  

[C#]

public void DerivedTypesExample(DTE2 dte)  
{  
    // Before running this example, open a code document from a project  
    // and place the insertion point inside a class definition.  
    try  
    {  
        // Retrieve the CodeClass at the insertion point.  
        TextSelection sel =   
            (TextSelection)dte.ActiveDocument.Selection;  
        CodeClass cls =   
           (CodeClass)sel.ActivePoint.get_CodeElement(  
           vsCMElement.vsCMElementClass);  

        // Find the namespace's children.  
        string types = "";  

        foreach (CodeElement elem in cls.DerivedTypes)  
            types += elem.Name + "\r\n";  

        MessageBox.Show(cls.Name +   
            " has the following derived types:\r\n\r\n" + types);  
    }  
    catch (Exception ex)  
    {  
        MessageBox.Show(ex.Message);  
    }  
}  

Remarks

The DerivedTypes property returns a CodeElements collection of the types that derive from the code class. The DerivedTypes collection only returns types that derive from code classes within a single project, not across other projects or languages. If the code element is a vsCMElementInterface, then the returned collection also includes CodeClass objects that implement the interface.

Applies to