Sub SetFileExtension ( _
    extension As String _
)

Dim instance As ITextTemplatingEngineHost
Dim extension As String

instance.SetFileExtension(extension)

void SetFileExtension(
    string extension
)

void SetFileExtension(
    String^ extension
)

function SetFileExtension(
    extension : String
)

//the host can provide a default by setting the value of the field here
private string fileExtensionValue = ".txt";
public string FileExtension
{
    get { return fileExtensionValue; }
}

public void SetFileExtension(string extension)
{
    //the parameter extension has a '.' in front of it already
    //--------------------------------------------------------
    fileExtensionValue = extension;
}

'the host can provide a default by setting the value of the field here
Private fileExtensionValue As String = ".txt"
        Public ReadOnly Property FileExtension() As String
            Get
                Return fileExtensionValue
            End Get
        End Property

Public Sub SetFileExtension(ByVal extension As String) Implements Microsoft.VisualStudio.TextTemplating.ITextTemplatingEngineHost.SetFileExtension

    'the parameter extension has a '.' in front of it already
    '--------------------------------------------------------
    fileExtensionValue = extension
End Sub