private void CommonDeleteButton()
{
foreach (string selectedUnit in CustomUnitsListBox.CheckedItems)
{
RemoveCustomUnit(selectedUnit);
}
UpdateListBox();
winFormsFrontEnd.UpdateComboBoxes();
}
private bool CommonAddButton()
{
string unitName;
double gradient;
double intercept = 0;
Unit unitBase;
bool gradientIsValid;
bool interceptIsValid;
gradientIsValid = double.TryParse(GradientInput.Text, out gradient);
interceptIsValid = double.TryParse(InterceptInput.Text, out intercept);
if (!string.IsNullOrWhiteSpace(CustomUnitNameInput.Text) &&
!UnitNameExists(CustomUnitNameInput.Text) &&
gradientIsValid &&
(interceptIsValid || string.IsNullOrWhiteSpace(InterceptInput.Text)))
{
unitName = CustomUnitNameInput.Text;
unitBase = unitConverterProgram.GetUnitByName(GetQuantitySelected(), BasedOnUnitDropDown.Text);
AddNewCustomUnit(unitName, gradient, intercept, unitBase);
UpdateComboBox();
winFormFrontEnd.UpdateComboBoxes();
return(true);
}
else if (UnitNameExists(CustomUnitNameInput.Text))
{
MessageBox.Show(
"The name you have chosen for the custom unit exists. " +
"Please enter a unique name.",
"Chosen Unit Name Exists",
MessageBoxButtons.OK,
MessageBoxIcon.Warning);
return(false);
}
else
{
MessageBox.Show(
"You have entered one or more invalid inputs. Please " +
"check that they are valid before submitting again.",
"Invalid Input(s)",
MessageBoxButtons.OK,
MessageBoxIcon.Warning);
return(false);
}
}