/// <summary>
/// on click take textbox value, add it to total average sum and track a current average
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button_AVG_Click(object sender, EventArgs e)
{
string input = ValtextBox.Text; //set textbox to string to convert it to a double
double inputNum; //placeholder to take texbox string and convert it to a double
//if textbox cannot be convertedto a valid double,
//display a messgbox indicating the error,then clear textbox and focus on textbox
if (!double.TryParse(input, out inputNum))
{
MessageBox.Show("Not a valid number");
ValtextBox.Clear();
ValtextBox.Focus();
}
//else if it is a valid number-add to avg sum and add to total number of values inputed
//after valid entry, clear txtbox and focus on textbox
else
{
totalVals++;
crntAvgSum = (inputNum + crntAvgSum) / totalVals;
AVGCount.Text = crntAvgSum.ToString("0.0");
ValCount.Text = totalVals.ToString();
ValtextBox.Clear();
ValtextBox.Focus();
}
}
/// <summary>
/// on click reset and clear all values and focus on textbox
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button_reset_Click(object sender, EventArgs e)
{
ValtextBox.Clear();
ValtextBox.Focus();
crntAvgSum = 0;
totalVals = 0;
AVGCount.Text = "0";
ValCount.Text = "0";
}