silverlight: How to set attached properties Programmatically

Question

Suppose I have a grid with some row definitions, and a child control in that grid. How would I go about setting the Grid.Row property of the child control programatically?

Answer 1

To set the value:

textBlock.SetValue(Grid.RowProperty, 3);

To reset the value:

textBlock.SetValue(Grid.RowProperty, null);