Chapter 4.LC, Problem 1E

Program Plan Intro

Heart rate

Program plan:

• Create new Windows Forms Application.
• Design the form by placing the labels, textbox, and button and then change their name and properties.
• Inside the “Calulate” button,
  • Declare required variables.
  • Check whether the text is empty.
    • Parse the age.
    • Assign the required values.
    • Assign the values to the text box.
    • Otherwise, display the message in the message box.
• Inside the “Exit” button,
  • Close the form.
• Inside the “txtAge_Enter”
  • Select the values in the text box.
• Inside the “txtAge_keyPress”,
  • Check the condition whether it accepts only numbers and the backspace.
• Inside the “txtAge_TextChanged”,
  • Assign all the text box to empty