/// <summary>
/// routines to run when form loads
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void frmComputeCarColor_Load(object sender, EventArgs e)
{
try
{
// declare variables
DateTime startingDate = DateTime.Now;
// get monday's date from today's date
startingDate = ComputeCarColor.FindMonday(startingDate);
// set the text in the starting point
if (DateTime.Now.DayOfWeek.ToString() == "Monday")
{
lblStartPoint.Text = "Today is " + startingDate.ToLongDateString() + " and the car color is currently: ";
}
else
{
lblStartPoint.Text = "Assume today is " + startingDate.ToLongDateString() + " and the car color is currently: ";
}
}
catch (Exception ex)
{
Common.HandleError(ex);
}
}
// get the color of the car
private void btnComputeColor_Click(object sender, EventArgs e)
{
// declare variables
DateTime futureDate;
string carColor = String.Empty;
string message = String.Empty;
int numberDays = 0;
try
{
// first validate the day entry
// if an error was found then display it
message = Common.ValidateDaysEntry(txtDays, out numberDays);
if (message != String.Empty)
{
MessageBox.Show(message, "Problem", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
// if all goes well then get the car color
carColor = ComputeCarColor.color_of_the_day(numberDays);
// get the date in the future based on number of days and start date of Monday. we could have gotten this from the
// "color_of_the_day" function by using an out parameter modifier, but this goes against the requirements
// and forces the user of the function to pass in a date when they may not want to.
// so it is done separately.
futureDate = ComputeCarColor.GetFutureDate(ComputeCarColor.FindMonday(DateTime.Now), numberDays);
// display the car color
lblCarColor.Text = "The future car color for " + futureDate.ToLongDateString() + " is: ";
lblComputedCarColor.Text = carColor;
lblComputedCarColor.BackColor = SystemColors.Control;
switch (carColor)
{
case "Red":
lblComputedCarColor.ForeColor = Color.Red;
break;
case "Orange":
lblComputedCarColor.ForeColor = Color.Orange;
break;
case "Yellow":
lblComputedCarColor.ForeColor = Color.Yellow;
lblComputedCarColor.BackColor = Color.Black;
break;
case "Green":
lblComputedCarColor.ForeColor = Color.Green;
break;
case "Blue":
lblComputedCarColor.ForeColor = Color.Blue;
break;
case "Purple":
lblComputedCarColor.ForeColor = Color.Purple;
break;
case "Black":
case "No Color":
lblComputedCarColor.ForeColor = Color.Black;
break;
default:
lblComputedCarColor.ForeColor = Color.Red;
break;
}
}
// select text and set focus to future days text box
txtDays.SelectionStart = 0;
txtDays.SelectionLength = txtDays.Text.Length;
txtDays.Focus();
}
catch (Exception ex)
{
Common.HandleError(ex);
}
}