protected void Page_Load(object sender, EventArgs e)
{
// configure the TextBoxes based on the property value
foreach (TextBox textBox in new [] { LapsText, LengthText, MinText, CalsText })
{
textBox.AutoPostBack = EnableTextBoxAutoPostBack;
}
int laps, length, mins, cals;
if (int.TryParse(LapsText.Text, out laps) &&
int.TryParse(LengthText.Text, out length) &&
int.TryParse(MinText.Text, out mins) &&
int.TryParse(CalsText.Text, out cals))
{
float[] newinputs = new float[] { laps, length, mins, cals };
// perform the calculations only if one of the inputs has changed
if (lastInputs == null || !lastInputs.SequenceEqual(newinputs))
{
SwimCalcResult result = SwimCalculator.PerformCalculation(laps, length, mins, cals);
// invoke the event
OnCalcPerformed(new SwimCalcEventArgs(result));
lastInputs = newinputs;
}
}
}
protected void Button1_Click(object sender, EventArgs e)
{
int laps, length, mins, cals;
if (int.TryParse(TextBox1.Text, out laps) &&
int.TryParse(TextBox2.Text, out length) &&
int.TryParse(TextBox3.Text, out mins) &&
int.TryParse(TextBox4.Text, out cals))
{
SwimCalcResult calcResult = SwimCalculator.PerformCalculation(laps, length, mins, cals);
// compose the resuls
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.AppendFormat("Distance: {0:F2} miles\n", calcResult.Distance);
stringBuilder.AppendFormat("Calories Burned: {0:F0}\n", calcResult.Calories);
stringBuilder.AppendFormat("Pace: {0:F0} sec/lap \n", calcResult.Pace);
// set the results text
TextBox5.Text = stringBuilder.ToString();
}
else
{
TextBox5.Text = "";
}
}
