private void LoadImageResponseIntoForm(APODResponse apodResponse)
{
// display title and credit
lblTitle.Text = apodResponse.Title;
// remove newlines & redundant "Image credit"-s from copyright info
string imageCredit = apodResponse.Copyright.Replace("\n", " ");
imageCredit = imageCredit.Replace("Image credit: ", "");
lblCredits.Text = $"Image credit: {imageCredit}";
// parse, format, and display image date
DateTime date = DateTime.Parse(apodResponse.Date);
string formattedDate = $"{date:D}";
lblDate.Text = formattedDate;
// display desc
lblDescription.Text = apodResponse.Explanation;
try
{
picAstronomyPicture.Image = Image.FromFile(apodResponse.FileSavePath);
}
catch (Exception e)
{
Debug.WriteLine($"Error loading image for {apodResponse}\n{e.Message}");
}
}
private void LoadImageResponseIntoForm(APODResponse apodResponse)
{
//show title
lblTitle.Text = apodResponse.Title;
//format and show image credits
lblCredits.Text = $"Image credit; {apodResponse.Copyright}";
//convert date string from response which is in the form yyy-mm-dd,
//into a Datetime, so it can be formatted and dsiplayed
DateTime date = DateTime.Parse(apodResponse.Date);
string formattedDate = $"{date:D}";
lblDate.Text = formattedDate;
//show explanation text
lblDescription.Text = apodResponse.Explanation;
//load picture, handle any image loading errors
try
{
picAstronomyPicture.Image = Image.FromFile(apodResponse.FileSavePath);
}
catch (Exception e)
{
Debug.WriteLine($"Error Loading Image saved for {apodResponse}'\n'{e.Message}");
}
}
private void LoadImageResponseIntoForm(APODResponse apodResponse)
{
// Show title
lblTitle.Text = apodResponse.Title;
// Format and show image credits
lblCredits.Text = $"Image credit: {apodResponse.Copyright}";
// Convert date string from response, which is in the form yyyy-mm-dd,
// into a DateTime, so it can be formatted and displayed
DateTime date = DateTime.Parse(apodResponse.Date);
string formattedDate = $"{date:D}"; // Example format "Saturday January 19, 2020"
lblDate.Text = formattedDate;
// Show explanation text
lblDescription.Text = apodResponse.Explanation;
// Try to load image. Catch and handle any image file errors
try
{
picAstronomyPicture.Image = Image.FromFile(apodResponse.FileSavePath);
}
catch (Exception e)
{
Debug.WriteLine($"Error loading image saved for {apodResponse}\n{e.Message}");
}
}
private void LoadImageResponseIntoForm(APODResponse apodResponse)
{
lblTitle.Text = apodResponse.Title;
string imageCredits = apodResponse.Copyright.Replace("\n", " ");
string lowercaseImageCredits = imageCredits.ToLower();
if (lowercaseImageCredits.Contains("image credit"))
{
lblCredits.Text = apodResponse.Copyright;
}
else
{
lblCredits.Text = $"Image credit: {imageCredits}";
}
DateTime date = DateTime.Parse(apodResponse.Date);
string formattedDate = $"{date:D}";
lblDate.Text = formattedDate;
lblDescription.Text = apodResponse.Explanation;
try
{
picAstronomyPicture.Image = Image.FromFile(apodResponse.FileSavePath);
}
catch (Exception e)
{
Debug.WriteLine($"Error loading image saved for {apodResponse}\n{e.Message}");
}
}
// TODO: Create new method to display data from an APODResponse in the form.
private void loadImageResposeIntoForm(APODResponse apodResponse)
{
// TODO: Show title in lblTitle
lblTitle.Text = apodResponse.Title;
// Format and show image credits in lblCredits
lblCredits.Text = $"Image credit: {apodResponse.Copyright}";
// Convert date string from response, which is in the form yyyy - mm - dd, into a DateTime
//format and display the date string in lblDate
DateTime date = DateTime.Parse(apodResponse.Date);
string formatteddate = $"{date:D}"; // example format "Saturday January 19, 2020
//Show explanation text in lblDescription
lblDescription.Text = apodResponse.Explanation;
// Load the image into the picAstronomyPicture PictureBox.
try
{
picAstronomyPicture.Image = Image.FromFile(apodResponse.FileSavePath);
}
catch (Exception e)
{
Debug.WriteLine($"Error loading image saved for {apodResponse}\n{e.Message}");
}
// Catch any errors thrown loading the image
}
private void LoadImageResponseIntoForm(APODResponse apodResponse)
{
lblTitle.Text = apodResponse.Title;
//cleans up copyright formatting.
string credit = apodResponse.Copyright.Replace('\n', ' ');
if (credit.Contains("Image credit:"))
{
lblCredits.Text = $"{credit}";
}
else
{
lblCredits.Text = $"Image credit: {credit}";
}
// Cleans up the date formatting.
DateTime date = DateTime.Parse(apodResponse.Date);
string formattedDate = $"{date:D}";
lblDate.Text = formattedDate;
lblDescription.Text = apodResponse.Explanation;
try
{
picAstronomyPicture.Image = Image.FromFile(apodResponse.FileSavePath);
}
catch (Exception e)
{
Debug.WriteLine($"Error loading image saved for {apodResponse}\n{e.Message}");
}
}
private void HandleResponse(APODResponse apodResponse, string error)
{
// TODO: if there is an error from the request, show a MessageBox
// TODO: Make sure response is an image (not a video or other media type)
// TODO: If there are no errors, and the response is an image, call a method
// (that you'll create) to display the info in the form
// TODO: if APOD is not an image, display a message box, ask user to try another date
}
private void apodBackgroundWorker_DoWork(object sender, DoWorkEventArgs e)
{
if (e.Argument is DateTime dt)
{
APODResponse apodResponse = APOD.FetchAPOD(out string error, dt);
e.Result = (reponse : apodResponse, error);
Debug.WriteLine(e.Result);
}
else
{
Debug.WriteLine("Background worker error - argument not a DateTime" + e.Argument);
throw new Exception("Incorrect Argument type, must be a DateTime");
}
}
private void apodBackgroundWorker_DoWork(object sender, DoWorkEventArgs e)
{
// If the argument is a DateTime, convert it to a DateTime and store in variable named dt
if (e.Argument is DateTime dt)
{
APODResponse apodResponse = APOD.FetchAPOD(out string error, dt); // Make the request!
e.Result = (reponse : apodResponse, error); // A tuple https://docs.microsoft.com/en-us/dotnet/csharp/tuples
Debug.WriteLine(e.Result);
}
else
{
Debug.WriteLine("Background worker error - argument not a DateTime" + e.Argument);
throw new Exception("Incorrect Argument type, must be a DateTime");
}
}
private void HandleResponse(APODResponse apodResponse, string error)
{
if (error != null)
{
MessageBox.Show(error, "Error");
return;
}
if (apodResponse.MediaType.Equals("image"))
{
LoadImageResponseIntoForm(apodResponse);
}
else
{
MessageBox.Show($"The response is not an image. Please try another date.", "Sorry!");
}
}
private void HandleResponse(APODResponse apodResponse, string error)
{
if (error != null) // bad response
{
MessageBox.Show(error, "Error");
Debug.WriteLine(error);
return;
}
if (apodResponse.MediaType.Equals("image")) // make sure the response is an image
{
LoadImageResponseIntoForm(apodResponse);
}
else
{
MessageBox.Show("The response is not an image. Try another date.", "Sorry!");
}
}
private void HandleResponse(APODResponse apodResponse, string error)
{
// method makes sure it got a valid image responce and displays an image or message accordingly.
if (error != null)
{
MessageBox.Show(error, "Error");
return;
}
if (apodResponse.MediaType.Equals("image"))
{
LoadImageResponseIntoForm(apodResponse);
}
else
{
MessageBox.Show($"The response is not an image. Please try another date.", "Error");
}
}
// TODO: Create new method to display data from an APODResponse in the form.
private void LoadImageResponseIntoForm(APODResponse apodResponse)
{
// TODO: Show title in lblTitle
lblTitle.Text = apodResponse.Title;
// TODO: Format and show image credits in lblCredits
string copyright = apodResponse.Copyright;
copyright = copyright.Replace("\n", " "); //fixes error where last name is on a newline, check 04/11/2020 for future debug
string copyrightLower = copyright.ToLower(); //to lower to identify "image credit" already listed
if (copyrightLower.Contains("image credit"))
{
lblCredits.Text = copyright;
}
else
{
lblCredits.Text = $"Image credit: {copyright}";
}
// TODO: Convert date string from response, which is in the form yyyy-mm-dd, into a DateTime
// TODO: format and display the date string in lblDate
DateTime date = DateTime.Parse(apodResponse.Date);
string formattedDate = $"{date:D}"; //example format "saturday january 19
lblDate.Text = formattedDate;
// TODO: Show explanation text in lblDescription
lblDescription.Text = apodResponse.Explanation;
// TODO: Load the image into the picAstronomyPicture PictureBox.
try
{
picAstronomyPicture.Image = Image.FromFile(apodResponse.FileSavePath);
}
catch (Exception e)
{
Debug.WriteLine($"Error loading image saved for {apodResponse}\n{e.Message}");
}
// TODO: Catch any errors thrown loading the image
}
// TODO: Create new method to display data from an APODResponse in the form.
private void LoadImageResponseIntoForm(APODResponse apodResponse)
{
// TODO: Show title in lblTitle
lblTitle.Text = apodResponse.Title;
// TODO: Format and show image credits in lblCredits
string imageCredits = apodResponse.Copyright.Replace("\n", " ");
string lowercaseImageCredits = imageCredits.ToLower();
if (lowercaseImageCredits.Contains("image credit"))
{
lblCredits.Text = apodResponse.Copyright;
}
else
{
lblCredits.Text = $"Image credit: {imageCredits}";
}
// TODO: Convert date string from response, which is in the form yyyy-mm-dd, into a DateTime
DateTime date = DateTime.Parse(apodResponse.Date);
// TODO: format and display the date string in lblDate
string formattedDate = $"{date:D}";
lblDate.Text = formattedDate;
// TODO: Show explanation text in lblDescription
lblDescription.Text = apodResponse.Explanation;
try
{
// TODO: Load the image into the picAstronomyPicture PictureBox.
picAstronomyPicture.Image = Image.FromFile(apodResponse.FileSavePath);
}
catch (Exception e)
{
// TODO: Catch any errors thrown loading the image
Debug.WriteLine($"Error loading image saved for {apodResponse}\n{e.Message}");
}
}
private void HandleResponse(APODResponse apodResponse, string error)
{
if (error != null)
{
MessageBox.Show(error, "Error");
return;
}
// Make sure response is an image (not a video or other media type) before loading
if (apodResponse.MediaType.Equals("image"))
{
LoadImageResponseIntoForm(apodResponse);
}
else
{
MessageBox.Show($"The response is not an image. Please try another date.", "Sorry!");
}
// TODO: If there are no errors, and the response is an image, call a method
// (that you'll create) to display the info in the form
// TODO: if APOD is not an image, display a message box, ask user to try another date
}
private void HandleResponse(APODResponse apodResponse, string error)
{
// Check if there was an error, show user error message if so
if (error != null)
{
MessageBox.Show(error, "Error");
return;
}
// Does the response represent an image? Some "photos" are videos,
// which we can't display in this app.
if (apodResponse.MediaType.Equals("image"))
{
// If the response is an image, call method to display
// the data in the form controls
LoadImageResponseIntoForm(apodResponse);
}
else
{
MessageBox.Show($"The response for this date is not an image", "Sorry!");
}
}
private void LoadImageResponseIntoForm(APODResponse apodResponse)
{
lblTitle.Text = apodResponse.Title;
lblCredits.Text = $"Image Credit: {apodResponse.Copyright}";
DateTime date = DateTime.Parse(apodResponse.Date);
string formattedDate = $"{date:d}";
lblDate.Text = formattedDate;
lblDescription.Text = apodResponse.Explanation;
try
{
picAstronomyPicture.Image = Image.FromFile(apodResponse.FileSavePath);
}
catch (Exception e)
{
Debug.WriteLine($"Error loading image saved for {apodResponse}\n{e.Message}");
}
}
private void LoadImageResponseIntoForm(APODResponse apodResponse)
{
//Show title
lblTitle.Text = apodResponse.Title;
string copyright = apodResponse.Copyright;
copyright = copyright.Replace("\n", " "); // remove newline and replace with blank string or space
string str = "Image credit"; //Initialze variable s by assigning string value called Image credit
//Do the same thing with the text "Image credit"
//Replace "Image credit" with ""
copyright = copyright.Replace("Image credit", " ");//remove duplicate string and replace with blank string
// Format and show image credits
lblCredits.Text = $"Image credit: {copyright}";
//Convert date string from response, which is in the form yyyy-mm-dd,
//into a DataTime, so it can be formatted and displayed
DateTime date = DateTime.Parse(apodResponse.Date);
string formattedDate = $"{date:D}"; // Example format "Saturday January 19, 2020"
lblDate.Text = formattedDate;
// Show explanation text
lblDescription.Text = apodResponse.Explanation;
//Load picture, handle any image loading errors
try
{
picAstronomyPicture.Image = Image.FromFile(apodResponse.FileSavePath);
}
catch (Exception e)
{
Debug.WriteLine($"Error loading image saved for {apodResponse}\n {e.Message}");
}
}
private void LoadImageResponseIntoForm(APODResponse apodResponse)
{
// Show title
lblTitle.Text = apodResponse.Title;
// Format and show image credits
if (apodResponse.Copyright.Contains("Image credit:"))
{
// Solution for the doble 'Image Credit' print out
lblCredits.Text = $"{apodResponse.Copyright.Replace('\n',' ')}";
}
else
{
lblCredits.Text = $"Image credit: {apodResponse.Copyright.Replace('\n', ' ')}";
}
// Convert date string from response, which is in the form yyyy-mm-dd
// into a DatTime, so it can be formatted and displayed
DateTime date = DateTime.Parse(apodResponse.Date);
string formattedDate = $"{date:D}"; // Example format "Saturday January 19, 2020"
lblDate.Text = formattedDate;
// Show explanation text
lblDescription.Text = apodResponse.Explanation;
// Load picture, handle any image loading errors
try
{
picAstronomyPicture.Image = Image.FromFile(apodResponse.FileSavePath);
}
catch (Exception e)
{
Debug.WriteLine($"Error loading image saved for {apodResponse}/n{e.Message}");
}
}
public static APODResponse FetchAPOD(out string errorMessage, DateTime?forDate = null, string imageSavePath = null)
{
WebClient client = new WebClient();
using (client)
{
// URL for making APIs requests to APOD service, this requests today's picture
// Try this URL in a browser, you'll see a response in JSON format
string url = "https://api.nasa.gov/planetary/apod?api_key=6RVB2VqVPHzfyI9TQ0d4XeQEiAopapJf3RmvapIk";
try
{
// If a DateTime is provided, format as yyyy-MM-dd for example, 2020-03-30 for March 30th 2020
// and append to the URL to request photo for that date
if (forDate != null)
{
string isoDate = $"{forDate:yyyy-MM-dd}";
url += $"&date={isoDate}";
}
Debug.WriteLine("Using URL " + url);
// Make request, download JSON response as a string
var responseString = client.DownloadString(url);
// Configure JSON serializer
// use setting to convert JSON lowercase attributes to C# style CamelCase variables
var serializerOptions = new JsonSerializerOptions
{
PropertyNamingPolicy = JsonNamingPolicy.CamelCase
};
// Deserialize - convert the JSON to a custom C# object of type APODResponse.
// The properties and values in the JSON are converted to properties and values in the C# object
// See also the APODResponse.cs file
APODResponse response = JsonSerializer.Deserialize <APODResponse>(responseString, serializerOptions);
// If no image save path set, use the temp directory on the computer, with default filename.
if (imageSavePath == null)
{
imageSavePath = Path.Combine(Path.GetTempPath(), "apod.jpg");
}
// The response contains a URL that points to the actual image. Download to the imageSavePath
client.DownloadFile(response.ImageUrl, imageSavePath);
// Add the path the image was saved to, to the APODResponse object by setting the FileSavePath property
response.FileSavePath = imageSavePath;
// For troubleshooting
Debug.WriteLine(response);
// Everything seems to have worked, set errorMessage to null
// and return response containing all the APOD data
errorMessage = null;
return(response);
}
catch (WebException we)
{
// Catch various connectivity problems
errorMessage = "Error fetching data from NASA because " + we.Message;
}
catch (IOException ioe)
{
// Catch various image save file problems
errorMessage = "Error saving image file because " + ioe.Message;
}
catch (Exception ex)
{
// And for other things that may go wrong.
errorMessage = "Unexpected Exception with message " + ex.Message;
}
// For troubleshooting
Debug.WriteLine($"Error fetching data from APOD server because {errorMessage}");
return(null); // Caller will be able to check for a null return value, to test if request was not succesful
}
}
