CodeClass2.IsAbstract Property

Sets or gets whether or not the code class is declared as abstract.

Namespace:  EnvDTE80
Assembly:  EnvDTE80 (in EnvDTE80.dll)

Syntax

'Declaration
Property IsAbstract As Boolean

bool IsAbstract { get; set; }

property bool IsAbstract {
    bool get ();
    void set (bool value);
}

abstract IsAbstract : bool with get, set

function get IsAbstract () : boolean 
function set IsAbstract (value : boolean)

Property Value

Type: Boolean
A boolean value that is true if the code class is declared as abstract; false otherwise.

Remarks

The IsAbstract property returns or sets whether the class currently appears to be abstract or whether the class requires a subclass that adds method implementations that are missing due to abstract methods. For some languages this may always be false.

Note

A class may not be declared abstract, but it may be implicitly abstract.

Also, the values of code model elements such as classes, structs, functions, attributes, delegates, and so forth can be non-deterministic after making certain kinds of edits, meaning that their values cannot be relied upon to always remain the same. For more information, see the section Code Model Element Values Can Change in Discovering Code by Using the Code Model (Visual Basic).

Examples

[Visual Basic]

Sub IsAbstractExample(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)

        ' Display whether the class is abstract.
        If cls.IsAbstract Then
            MsgBox(cls.Name & " is an abstract class.")
        Else
            MsgBox(cls.Name & " is not an abstract class.")
        End If
    Catch ex As Exception
        MsgBox(ex.Message)
    End Try
End Sub

[C#]

public void IsAbstractExample(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);

        // Display whether the class is abstract.
        if (cls.IsAbstract)
            MessageBox.Show(cls.Name + " is an abstract class.");
        else
            MessageBox.Show(cls.Name + " is not an abstract class.");
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.Message);
    }
}

.NET Framework Security

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

See Also

Reference

CodeClass2 Interface

EnvDTE80 Namespace

Other Resources

How to: Compile and Run the Automation Object Model Code Examples

Discovering Code by Using the Code Model (Visual Basic)

Discovering Code by Using the Code Model (Visual C#)