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Explain briefly the following events stating one possible use for each.i) Form Loadii) KeyPressiii) Query Unload (6 Marks)

Question

Explain briefly the following events stating one possible use for each.

i) Form Load
ii) KeyPress
iii) Query Unload (6 Marks)

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Solution

i) Form Load: This event occurs when a form is being loaded or initialized. One possible use for this event is to perform any necessary setup or initialization tasks for the form, such as setting default values for controls or retrieving data from a database.

ii) KeyPress: This event is triggered when a key is pressed while a control has focus. One possible use for this event is to validate user input, such as checking if the entered value is in the correct format or within a valid range. It can also be used to perform specific actions based on the key pressed, such as triggering a search function when the Enter key is pressed.

iii) Query Unload: This event is fired when a form is about to be unloaded or closed. One possible use for this event is to prompt the user for confirmation before closing the form, especially if there are unsaved changes. It can also be used to perform cleanup tasks, such as releasing any resources or closing any open connections before the form is closed.

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