CodeDelegate2.IsDerivedFrom[String] Property

public:
 property bool IsDerivedFrom[System::String ^] { bool get(System::String ^ FullName); };

[System.Runtime.InteropServices.DispId(43)]
public bool IsDerivedFrom[string FullName] { [System.Runtime.InteropServices.DispId(43)] get; }

[<System.Runtime.InteropServices.DispId(43)>]
[<get: System.Runtime.InteropServices.DispId(43)>]
member this.IsDerivedFrom(string) : bool

Public ReadOnly Property IsDerivedFrom(FullName As String) As Boolean

Parameters

Property Value

A Boolean value that is true if a delegate has another delegate as a base; otherwise returns false.

Implements

Attributes

DispIdAttribute

Examples

Before running this example, load a project with a class and insert the following line along with the example code. After both the line and the example code are added, click the Delegate line to place the insertion point there, and then run the example.

[VisualBasic]

Delegate Sub MySubDelegate(ByVal x As Integer)  

[C#]

public delegate void MySubDelegate(int x);  

[VisualBasic]

Public Sub CodeDelegateExample(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 del As CodeDelegate2 = _  
            CType(sel.ActivePoint.CodeElement( _  
        vsCMElement.vsCMElementDelegate), CodeDelegate2)  
        Dim elem As CodeElement2  
        Dim sb As New System.Text.StringBuilder  

        ' Display the baseclass name of the delegate.  
        sb.AppendLine("Delegate base class name: " & _  
          del.BaseClass.Name)  
        sb.AppendLine("Delegate's access: " & del.Access.ToString)  
        sb.AppendLine("Children: " & del.Children.Count & "  _  
          Name: " & del.Children.Item(1).Name)  
        sb.AppendLine("Collection: " & del.Collection.Count)  
        sb.AppendLine("Delegates:")  
        For Each elem In del.Collection  
            sb.AppendLine("    - " & elem.Name)  
        Next  
        sb.AppendLine("Comment: " & del.Comment)  
        sb.AppendLine("Doc Comment: " & del.DocComment)  
        sb.AppendLine("DTE Parent: " & del.DTE.Name)  
        sb.AppendLine("Endpoint location: " & _  
          del.EndPoint.AbsoluteCharOffset)  
        sb.AppendLine("Infolocation: " & del.InfoLocation.ToString)  
        sb.AppendLine("Can provide CodeType object? " & _  
          del.IsCodeType.ToString)  
        sb.AppendLine("Is Delegate derived? " & _  
          del.IsDerivedFrom("EnvDTE80"))  
        sb.AppendLine("Is Delegate a generic? " & del.IsGeneric)  
        sb.AppendLine("Kind: " & del.Kind.ToString)  
        sb.AppendLine("Authoring language: " & _  
          del.Language.ToString)  
        sb.AppendLine("Name: " & del.Name)  
        sb.AppendLine("Namespace: " + del.Namespace.Name);  
        sb.AppendLine("Parameters: " & del.Parameters.Item(1).Name)  
        sb.AppendLine("Project containing the delegate: " & _  
          del.ProjectItem.Name)  
        sb.AppendLine("Prototype for delegate: " & del.Prototype)  
        sb.AppendLine("Delegate start point offset: " & _  
          del.StartPoint.LineCharOffset)  
        sb.AppendLine("Type: " & del.Type.TypeKind.ToString)  
        MsgBox(sb.ToString)  

    Catch ex As System.Exception  
        MsgBox(ex.ToString)  
    End Try  
End Sub  

[C#]

public void CodeDelegateExample(DTE2 DTE)  
{  
    try  
    {  
        // Retrieve the CodeClass at the insertion point.  
        TextSelection sel = (TextSelection)   
          DTE.ActiveDocument.Selection;  
        CodeDelegate2 del = (CodeDelegate2)   
          sel.ActivePoint.get_CodeElement  
          (vsCMElement.vsCMElementDelegate);  
        System.Text.StringBuilder sb = new System.Text.StringBuilder();  
        // Display the baseclass name of the delegate.  
        sb.AppendLine("Delegate base class name: " +   
          del.BaseClass.Name);  
        sb.AppendLine("Delegate's access: " + del.Access);  
        sb.AppendLine("Children: "+del.Children.Count+"  Name:   
          "+del.Children.Item(1).Name);  
        sb.AppendLine("Collection: "+del.Collection.Count);  
        sb.AppendLine("Delegates:");  
        foreach (CodeElement2 elem in del.Collection )  
        {  
            sb.AppendLine("    - "+elem.Name);  
        }  
        sb.AppendLine("Comment: "+del.Comment);  
        sb.AppendLine("Attributes:");   
        foreach (CodeElement2 elem in del.Attributes)  
        {  
            sb.AppendLine("    - " + elem.Name);  
        }  
        sb.AppendLine("Bases:");  
        foreach (CodeElement2 elem in del.Bases)  
        {  
            sb.AppendLine("    - " + elem.Name);  
        }   
        sb.AppendLine("Doc Comment: " + del.DocComment);  
        sb.AppendLine("DTE Parent: "+del.DTE.Name);  
        sb.AppendLine("Endpoint location:   
          "+del.EndPoint.AbsoluteCharOffset);  
        sb.AppendLine("Infolocation: "+del.InfoLocation);  
        sb.AppendLine("Can provide CodeType object? "+del.IsCodeType);  
        sb.AppendLine("Is Delegate derived?   
          "+del.get_IsDerivedFrom("EnvDTE80"));  
        sb.AppendLine("Is Delegate a generic? "+del.IsGeneric);  
        sb.AppendLine("Kind: "+del.Kind);  
        sb.AppendLine("Authoring language: "+del.Language);  
        sb.AppendLine("Name: "+del.Name);  
        sb.AppendLine("Parameters: "+del.Parameters.Item(1).Name);  
        sb.AppendLine("Namespace: " + del.Namespace.Name);  
        sb.AppendLine("Project containing the delegate:   
          "+del.ProjectItem.Name);  
        sb.AppendLine("Delegate start point offset:   
          "+del.StartPoint.LineCharOffset);  
        sb.AppendLine("Type: "+del.Type.TypeKind);  
          MessageBox.Show(sb.ToString());  
    }  
    catch(System.Exception ex)  
    {  
        MessageBox.Show(ex.Message);  
    }  
}  

Remarks

Applies to