public override void ViewDidLoad()
{
base.ViewDidLoad();
//Request button clicked
RequestButton.TouchUpInside += (object sender, EventArgs e) => {
//Resign first responders
NameTextBox.ResignFirstResponder();
CurrentLocationTextBox.ResignFirstResponder();
DestinationTextBox.ResignFirstResponder();
//Get user information
string name = NameTextBox.Text;
string fromLocation = CurrentLocationTextBox.Text;
string toLocation = DestinationTextBox.Text;
string additionalInfo = AdditionalInfoTextBox.Text;
SVC.RequestButtonClicked(name, fromLocation, toLocation, additionalInfo);
};
//Feedback button clicked
FeedbackButton.TouchUpInside += (object sender, EventArgs e) => {
UIApplication.SharedApplication.OpenUrl(new NSUrl("https://docs.google.com/forms/d/e/1FAIpQLSdeB7-BxZh4oWTGqrMGMUL4wu0ufQRKmEyNvwKGfzXt8OdZYQ/viewform?usp=sf_link"));
};
}
/*
* CalculateButton_click method handles all of the math and text manipulation
* */
private void CalculateButton_Click(object sender, EventArgs e)
{
// local variables
float gasConsumed = -1;
float milesTravelled = -1;
// only calculate if the text boxes actually have text in them
if ((MilesTravelledTextBox.Text.Length > 0) && (GallonsConsumedTextBox.Text.Length > 0) && (DestinationTextBox.Text.Length > 0))
{
// reset the error message if there is one viewable
ErrorLabel.Text = "";
while (float.TryParse(MilesTravelledTextBox.Text, out milesTravelled) == false)
{
ErrorLabel.Text = "Miles Travelled value entered must be numeric.";
MilesTravelledTextBox.Text = "0.0";
MilesTravelledTextBox.Focus();
}
while (float.TryParse(GallonsConsumedTextBox.Text, out gasConsumed) == false)
{
ErrorLabel.Text = "Gallons consumed value entered must be numeric.";
GallonsConsumedTextBox.Text = "0.0";
GallonsConsumedTextBox.Focus();
}
// make sure the variables are greater than 0 so we don't divide by 0
if ((milesTravelled > 0) && (gasConsumed > 0))
{
MPGLabel.Text = milesTravelled / gasConsumed + " mpg";
ErrorLabel.Text = "";
}
else
{
ErrorLabel.Text = "Please insert only numbers with values greater than 0";
}
}
else // focus on the problem
{
ErrorLabel.Text = "Please fill out all of the boxes.";
if (DestinationTextBox.Text.Length <= 0)
{
DestinationTextBox.Focus();
}
else if (MilesTravelledTextBox.Text.Length <= 0)
{
MilesTravelledTextBox.Focus();
}
else if (GallonsConsumedLabel.Text.Length <= 0)
{
GallonsConsumedLabel.Focus();
}
}
}
private void OnBrowseButtonClick(object?sender, RoutedEventArgs e)
{
using var dialog = new System.Windows.Forms.FolderBrowserDialog
{
Description = "Select destination",
UseDescriptionForTitle = true,
SelectedPath = DestinationTextBox.Text,
};
if (dialog.ShowDialog(owner: this) == System.Windows.Forms.DialogResult.OK)
{
DestinationTextBox.UpdateBinding(TextBox.TextProperty, dialog.SelectedPath);
}
}
private void SelectDestinationButton_Click(object sender, EventArgs e)
{
using (var sf = new SaveFileDialog {
Filter = Consts.FirmwareFilter, FileName = GetDestinationFileName()
})
{
if (sf.ShowDialog() != DialogResult.OK)
{
return;
}
DestinationTextBox.Text = sf.FileName;
DestinationTextBox.ScrollToEnd();
}
}
void ReleaseDesignerOutlets()
{
if (AdditionalInfoTextBox != null)
{
AdditionalInfoTextBox.Dispose();
AdditionalInfoTextBox = null;
}
if (CurrentLocationTextBox != null)
{
CurrentLocationTextBox.Dispose();
CurrentLocationTextBox = null;
}
if (DestinationTextBox != null)
{
DestinationTextBox.Dispose();
DestinationTextBox = null;
}
if (FeedbackButton != null)
{
FeedbackButton.Dispose();
FeedbackButton = null;
}
if (NameTextBox != null)
{
NameTextBox.Dispose();
NameTextBox = null;
}
if (RequestButton != null)
{
RequestButton.Dispose();
RequestButton = null;
}
}
/// <summary>
/// Enters the preferred destination in the text box
/// </summary>
/// <param name="destination">Preferred city of stay</param>
public void EnterDestination(string destination)
{
DestinationTextBox.SendKeys(destination);
}
