Windows Forms: controls

• Demonstration
• 
• Functionality:
  • Run the specified number of balls in the blue area
  • Let the user to 'draw' a rectangle in the blue area (a collision between any ball and the rectangle stop 'drawing')
• Inform the user about the result and add it to the list of all results
• Allow the user to change the number of balls
• Define user interface elements and their behaviour as in the demonstration application.
  • Be sure to allow to resize the window and automatically adjust the controls positions and/or sizes as in the demonstration application.
• Technical requirements:
  • Drawing is forbiden. Only objects (esp. controls) and their properties and events can be used.
  • Speed and direction of each ball should be random. Be sure to bounce balls against the blue area's edges.
• Hints:
  • ListView
    • FullRowSelect, HideSelection, MultiSelect
    • View - Details
    • Sorting
    • Columns
  • NumericUpDown
    • Value, Minimum, Maximum
  • Timer
  • Control, Controls
  • MouseDown, MouseMove, MouseUp
  • MessageBox.Show(string.Format("Result: {0:F2} [{1} ball(s), {2:P}]", result, numberBalls, perc));

• Approximate points:
  • controls and their layout (including the window's resizing): 3.0
  • the ListView control (including adding items with values in 4 columns): 2.0
  • 'balls', their number and movement: 1.5
  • 'drawing' a rectangle: 2.5
  • logic of the game: 1.0

• Links for uploading:
  • Solutions
  • Corrections