FileCodeModel.AddInterface Method

  • Article

Creates a new interface code construct and inserts the code in the correct location.

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

Syntax

'Declaration
Function AddInterface ( _
    Name As String, _
    Position As Object, _
    Bases As Object, _
    Access As vsCMAccess _
) As CodeInterface

CodeInterface AddInterface(
    string Name,
    Object Position,
    Object Bases,
    vsCMAccess Access
)

CodeInterface^ AddInterface(
    String^ Name, 
    Object^ Position, 
    Object^ Bases, 
    vsCMAccess Access
)

abstract AddInterface : 
        Name:string * 
        Position:Object * 
        Bases:Object * 
        Access:vsCMAccess -> CodeInterface

function AddInterface(
    Name : String, 
    Position : Object, 
    Bases : Object, 
    Access : vsCMAccess
) : CodeInterface

Parameters

  • Name
    Type: System.String

    Required. The name of the new interface.

  • Position
    Type: System.Object

    Optional. Default = 0. The code element after which to add the new element. If the value is a CodeElement, then the new element is added immediately after it.

    If the value is a Long data type, then AddInterface indicates the element after which to add the new element.

    Because collections begin their count at 1, passing 0 indicates that the new element should be placed at the beginning of the collection. A value of -1 means the element should be placed at the end.

  • Bases
    Type: System.Object

    Optional. Default value is Nothing. A variant that holds a SafeArray of fully qualified type names or CodeInterface objects from which the new interface derives.

Return Value

Type: EnvDTE.CodeInterface
A CodeInterface object.

Remarks

Visual C++ requires the colon-separated (::) format for its fully qualified type names. All other languages support the period-separated format.

The correctness of the arguments is determined by the language behind the code model.

Examples

Sub AddInterfaceExample2(ByVal dte As DTE2)

    ' Before running this example, open a code document from a project.
    Try
        Dim projItem As ProjectItem = dte.ActiveDocument.ProjectItem
        Dim cm As CodeModel = projItem.ContainingProject.CodeModel

        ' Initialize the base interfaces array.
        Dim bases() As Object = { _
            ConvertFullName(cm, "System.IDisposable"), _
            ConvertFullName(cm, "System.IComparable") _
       }

        ' Create a new class.
        projItem.FileCodeModel.AddInterface("TestInterface", , bases)
    Catch ex As Exception
        MsgBox(ex.Message)
    End Try

End Sub

Function ConvertFullName(ByVal cm As CodeModel, _
    ByVal fullName As String) As String

    ' Convert a .NET type name into a C++ type name.
    If (cm.Language = CodeModelLanguageConstants.vsCMLanguageVC) Or _
        (cm.Language = CodeModelLanguageConstants.vsCMLanguageMC) Then
        Return fullName.Replace(".", "::")
    Else
        Return fullName
    End If

End Function

public void AddInterfaceExample2(DTE2 dte)
{
    // Before running this example, open a code document from 
    // a project.
    try
    {
        ProjectItem projItem = dte.ActiveDocument.ProjectItem;
        CodeModel cm = projItem.ContainingProject.CodeModel;

        // Initialize the base interfaces array.
        object[] bases = {
        ConvertFullName(cm, "System.IDisposable"), 
        ConvertFullName(cm, "System.IComparable")
        };

        // Create a new class.
        projItem.FileCodeModel.AddInterface("TestInterface", -1, bases, 
            vsCMAccess.vsCMAccessPublic);
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.Message);
    }
}

string ConvertFullName(CodeModel cm, string fullName)
{
    // Convert a .NET type name into a C++ type name.
    if ((cm.Language == CodeModelLanguageConstants.vsCMLanguageVC) || 
        (cm.Language == CodeModelLanguageConstants.vsCMLanguageMC))
        return fullName.Replace(".", "::");
    else
        return fullName;
}

.NET Framework Security

See Also

Reference

FileCodeModel Interface

EnvDTE Namespace

Other Resources

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