Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Which property of the KeyPress procedure’s e parameter is used to determine the key
pressed by the user?

Expert Solution
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Step 1

Property used to determine the key pressed by the user:

  • If a key is pressed within a control (i.e. the control has been focused), then the KeyPress event will occur.
  • When a user is pressing a key on a control, then the KeyPress event occurs.
Step 2
  • The pressed key is sent to the KeyPress event’s e parameter.
    • So, if the user presses a key, then the pressed key can be determined by using e parameter’s KeyChar property.
  • The format to determine the pressed key is given below:

           e.KeyChar = key_Value

  • The If statement to determine the pressed “$” key is given below:

          If e.KeyChar = “$” Then

  • In the above statement, the “e.KeyChar” represents the key entered by the keyboard.
  • The “$” symbol is used to represent the dollar.
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