Public Overridable Sub AutoSize() 

Dim instance As AnnTextObject
 
instance.AutoSize()

public virtual void AutoSize()

public:
virtual void AutoSize(); 

Public Sub AnnTextObject_AutoSize(ByVal container As AnnContainer, ByVal viewer As RasterImageViewer)
   ' first add a new text object
   Dim text As New AnnTextObject()
   text.Pen = New AnnPen(Color.Red, New AnnLength(3))
   text.Text = "Hello World!"
   text.Brush = Nothing
   text.Font = New AnnFont("Arial", New AnnLength(10, AnnUnit.Point), FontStyle.Regular)
   text.EdgeMargin = AnnLength.Empty
   text.Alignment = StringAlignment.Center
   text.LineAlignment = StringAlignment.Center
   text.TextRotate = AnnTextRotate.Rotate0
   text.Bounds = New AnnRectangle(100, 100, 400, 600, AnnUnit.Pixel)
   container.Objects.Add(text)
   viewer.Invalidate()
   MessageBox.Show("A text object with the original bounding rectangle")

   ' now make the object firts the content (its text)
   text.AutoSize()
   viewer.Invalidate()

   MessageBox.Show("Same text object after AutoSize")
End Sub

public void AnnTextObject_AutoSize(AnnContainer container, RasterImageViewer viewer)
{
   // first add a new text object
   AnnTextObject text = new AnnTextObject();
   text.Pen = new AnnPen(Color.Red, new AnnLength(3));
   text.Text = "Hello World!";
   text.Brush = null;
   text.Font = new AnnFont("Arial", new AnnLength(10, AnnUnit.Point), FontStyle.Regular);
   text.EdgeMargin = AnnLength.Empty;
   text.Alignment = StringAlignment.Center;
   text.LineAlignment = StringAlignment.Center;
   text.TextRotate = AnnTextRotate.Rotate0;
   text.Bounds = new AnnRectangle(100, 100, 400, 600, AnnUnit.Pixel);
   container.Objects.Add(text);
   viewer.Invalidate();
   MessageBox.Show("A text object with the original bounding rectangle");

   // now make the object firts the content (its text)
   text.AutoSize();
   viewer.Invalidate();

   MessageBox.Show("Same text object after AutoSize");
}