If we have a list box 1stBox as shown in the given image des

If we have a list box (1stBox) as shown in the given image describe completely and clearly the effect of each of the following statements [for #3 to #10] 1stBox.Items.Clear()_ 1stBox. Items. Remove At(0)_ 1stBox. Items. Remove(\"Math\") _ 1stBox. Items. Add(\"Law\")_ 1stBox. Items. RemoveAt(lstBox.selectedlndex)_ 1stBox. Items. Remove At(1stBox. Items.Count - 1)_ 1stBox. Sorted = true_ 1stBox. Items.Contains(\"English\") returns a_ Show code to make second item in list be highlighted: Show code to remove \"Drama\": If I had a combobox with the 50 states in it (in alpha order) that involved scrolling what could I type to quickly get to \"South Carolina\"? What are the three modes of use for a Combo Box? (a)_ (b)_and (c) DropDownList. What is the default event associated with both list boxes and combo boxes? What does it mean if we use MyListBox.Selectedlndex and it returns a -1 to us? In Visual Studio in the design mode what is the image on the icon that we click to have VS show us the events associated with the currently selected component?

Solution

3) lstBox.Items.Clear()--> clears the lstBox
4) lstBox.Items.RemoveAt(0) --> Remove the first item from lstBox
5) lstBox.Items.Remove(\"Math\") --> Remove the Math item from lstBox
6) lstBox.Items.Add(\"Law\") --> Add an item Law at the end of the list.
7) lstBox.Items.RemoveAt(lstBox.SelectedIndex) --> Remove the selected indexed item from lstBox
8) lstBox.Items.RemoveAt(lstBox.Items.Count-1) --> Remove the last indexed item from lstBox
9) lstBox.Sorted = True--> sorting the lstBox
10) lstBox.Items.Contains(\"English\") --> returns false