Create an application, using the following names for the solution and project, respectively: Dahlia Solution and Dahlia Project. Save the application in the VB2015\ Chap04 folder. Create the interface shown in Figure 4-56. The interface provides text boxes for the salesclerk to enter the numbers of DVDs and Blu-rays purchased by a customer. All DVDs sell for $9.99 each; all Blu-rays are $11.99 each. The sales tax rate is 6.5%. In addition to displaying the subtotal, sales tax, and total due, the application should display a message indicating the amount of Dahlia Cash the customer earned; however, it should leave the message area blank when the customer hasn’t earned any Dahlia Cash. Customers earn $10 in Dahlia Cash for every $50 he or she spends, not including the sales tax. The DVDs and Blu-rays text boxes should accept only numbers and the Backspace key. Clear the calculated amounts and the message when a change is made to the number of either DVDs or Blu-rays. When a text box receives the focus, select its existing text. Test the application appropriately.

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Dahlia's Date: Calculate DVDS: Exit Blu-rays: Subtotal: Sales tax: Total due: display the message in a label