private void btnCalculate_Click(object sender, EventArgs e)
{
int number = int.Parse(tbRepetitiveUnits.Text);
double deadline = double.Parse(tbProjectDuration.Text);
string unitName = tbName.Text;
Controller.NumberOfUnits = number;
Controller.ProjectDeadline = deadline;
Controller.UnitName = unitName;
Controller.CalculateLineOfBalance();
}