Add a text control to the artboard
Adding a text control to the artboard is the same as adding any other control to the artboard. The difference is that if the control is one of a specific type of text controls, Microsoft Expression Blend immediately enters text-editing mode, so that you can modify the text.
With a document open in Design view of Expression Blend, select a control that displays text (such as a Button control, a TextBlock control, and so on) from the Tools panel or from the Assets panel.
Draw the control on the artboard with your pointer, or double-click the control in the Tools panel to insert the control at its default size.
If the control is one of a specific type of text controls, Expression Blend enters text-editing mode and positions your cursor at the start of the text. You can exit text-editing mode by pressing ESC, and you can re-enter text-editing mode by pressing F2.
For more information, see Edit text.