Object Oriented Programming

What is the purpose of a RadioButton control?

• To allow multiple selections at once

• To display a single option from a group of choices

• To display text only

• 1. To display images only

1. When a user clicks on a RadioButton, what happens to other radio buttons in the same group?

• They become disabled

• They become checked

• They become unchecked

• 1. They become invisible

Which property of a RadioButton determines its current state?

• 1. Checked

• Selected

• Enabled

• Visible

How does a RadioButton differ from a CheckBox?

• RadioButton allows multiple selections; CheckBox allows single selection

• RadioButton allows single selection; CheckBox allows multiple selections

• 1. RadioButton has no visual difference from CheckBox

• RadioButton is used for displaying images only; CheckBox is used for displaying text

Which event is triggered when a RadioButton's state changes?

• Click

• CheckedChanged

•  SelectedIndexChanged

• CheckedStateChange

Can a RadioButton display both text and images simultaneously?

• Yes

• No

How can you programmatically check a RadioButton using C#? 6

• radioButton.IsChecked = true;

• radioButton.Selected = true;

• radioButton.Checked = true;

• radioButton.Enabled = true;

Which control allows the user to select multiple options at once

• RadioButton

• CheckBox

• ListBox

• ComboBox

Which method is used to add items to a ListBox dynamically

• AddItem()

• InsertItem()

• Add()

• Insert()

How can you retrieve the currently selected item in a ListBox as a string variable? 9

• listBox.SelectedText

• listBox.SelectedItem

• listBox.Text

• listBox.SelectedValue