Download Adavanced visual programming and more Exercises Computer Programming in PDF only on Docsity!
UNIVERSITE DES MASCAREIGNES
Advanced Visual Programming
Sample Questions
QUESTION 1
frmCustomers (shown below) has been designed to collect data about customers. Validation features need to be implemented.
Sample Questions
UDM, 2017 Page - 1 โ
txtCustID, txtLastName,
txtFirstName,
cboTown,
dtpBirthDate,
mtxtPhone,
txtCreditLimit,
- txtCustID and txtLastName are required fields. Write code to check that data has been entered in these text boxes.
- Write code to check that a value has been selected in cboTown.
- Write code to check that a date has been chosen in DateTimePicker, dtpBirthDate.
- A MaskedTextBox, mtxtPhone is used to input phone data. The mask has already been set. Write code to display a message when an invalid character is entered. Also, write code to check whether the input in mtxtPhone is valid.
Sample Questions
UDM, 2017 Page - 1 โ
- Write code for the Form Load event where data is filled in dataset, dbXYZDataset.
- Give an outline of how data in gender field can be bound to radio buttons (rbMale and rbFemale).
- Give an outline of how data in the town field can be bound to combo box, cboTown.
- Write code for btnLast and btnNext click events.
- Write code such that clicking on btnAdd enables to add a new customer record using the CustomersBindingSource object.
- Clicking on btnDelete must delete the record that is currently displayed. Write the corresponding code.
- Write code that will cancel addition or editing of a record when btnCancel is clicked.
Sample Questions
UDM, 2017 Page - 1 โ
- A search feature needs to be implemented. It will enable the user to search for a customer by
entering a custID in a text box named txtSearchCustID. Clicking on btnSearch will perform the search process. If the customer is not found, a message must be displayed. If customer is found, his record must be displayed on the form. Write code to implement the search feature. State any query/method that you need to create for the data adapter, customersTableAdapter.
Sample Questions
UDM, 2017 Page - 1 โ
