//****************************************************
// Method: ReadFromFile
//
// Purpose: Reads Json into CourseWork Instance
// Sets TextBoxes and ListViews to Approperate
// Values
//****************************************************
private void ReadFromFile(string filename)
{
//Reads Json into CourseWork Class
StreamReader sr = new StreamReader(filename);
reader = new FileStream(filename, FileMode.Open, FileAccess.Read);
jsonSer = new DataContractJsonSerializer(typeof(CourseWork));
cw = (CourseWork)jsonSer.ReadObject(reader);
reader.Close();
sr.Close();
// Sets File Path, CourseName and Grade rounded to 2 decimal places
textBoxFilePath.Text = filename;
textBoxCourseName.Text = cw.CourseName;
textBoxOverallGrade.Text = Math.Round(cw.CalculateGrade(), 2).ToString();
//Reads Categories, Assignments, Submissions into their respective ListViews
foreach (Category c in cw.Categories)
{
listViewCategories.Items.Add(c);
}
foreach (Assignment a in cw.Assignments)
{
listViewAssignment.Items.Add(a);
}
foreach (Submission s in cw.Submissions)
{
listViewSubmissions.Items.Add(s);
}
}
//*****************************************************************************
// Method: OpenButton_Click
//
// Purpose: Opens the file dialog to allow the user to select a json file to open.
//*****************************************************************************
private void OpenButton_Click(object sender, RoutedEventArgs e)
{
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.InitialDirectory = Directory.GetCurrentDirectory();
openFileDialog.Filter = "JSON files (*.json)|*.json";
if (openFileDialog.ShowDialog() == true)
{
string fileName = openFileDialog.FileName;
// display file path name
txtFilename.Text = fileName;
// instantiate couseWork
courseWork = new CourseWork();
// try reading from file, if exception thrown, break
try
{
FileStream reader = new FileStream(fileName, FileMode.Open, FileAccess.Read);
DataContractJsonSerializer input;
input = new DataContractJsonSerializer(typeof(CourseWork));
courseWork = (CourseWork)input.ReadObject(reader);
reader.Close();
}
catch (IOException)
{
Console.WriteLine("Invalid file name.\n");
return;
}
// clear all submission textboxes
txtAssignmentName.Clear();
txtSubAssignment.Clear();
txtSubCateogry.Clear();
txtSubGrade.Clear();
// display course name and overall grade
txtCourseName.Text = courseWork.CourseName;
txtOverallGrade.Text = Math.Round(courseWork.CalculateGrade(), 2).ToString();
// add to category listview
for (int i = 0; i < courseWork.Categories.Count; ++i)
{
listCategories.Items.Add(courseWork.Categories[i]);
}
// add to assignment listview
for (int i = 0; i < courseWork.Assignments.Count; ++i)
{
listAssignments.Items.Add(courseWork.Assignments[i]);
}
// add to submission listview
for (int i = 0; i < courseWork.Submissions.Count; ++i)
{
listSubmissions.Items.Add(courseWork.Submissions[i]);
}
}
}
static void Main(string[] args)
{
string menuSelection;
// instantiate object to use with serialization/deserialization
CourseWork courseWork = new CourseWork();
// file names
string fileName;
do
{
// display menu
Console.WriteLine("Course Work Menu");
Console.WriteLine("-------------------");
Console.WriteLine("1 - Read course work from JSON file");
Console.WriteLine("2 - Read course work from XML file");
Console.WriteLine("3 - Write course work to JSON file");
Console.WriteLine("4 - Write course work to XML file");
Console.WriteLine("5 - Display all course work on screen");
Console.WriteLine("6 - Find submission");
Console.WriteLine("7 - Exit");
Console.Write("Enter Choice: ");
// read and store user's selection
menuSelection = Console.ReadLine();
Console.WriteLine();
// perform unit testing based on user's input or exit the program
switch (menuSelection)
{
case "1": // Read course work from JSON file
// prompt user for file name
Console.Write("Enter a file name to read from: ");
fileName = Console.ReadLine();
// try reading from file, if exception thrown, break
try
{
FileStream reader = new FileStream(fileName, FileMode.Open, FileAccess.Read);
StreamReader streamReader = new StreamReader(reader, Encoding.UTF8);
string jsonString = streamReader.ReadToEnd();
byte[] byteArray = Encoding.UTF8.GetBytes(jsonString);
MemoryStream stream = new MemoryStream(byteArray);
DataContractJsonSerializer input;
input = new DataContractJsonSerializer(typeof(CourseWork));
courseWork = (CourseWork)input.ReadObject(stream);
reader.Close();
}
catch (IOException)
{
Console.WriteLine("Invalid file name.\n");
}
catch (SerializationException e) {
Console.WriteLine("Serialization exception.\n");
Console.WriteLine(e);
}
break;
case "2": // Read course work from XML file
// prompt user for file name
Console.Write("Enter a file name to read from: ");
fileName = Console.ReadLine();
// try reading from file, if exception thrown, break
try
{
FileStream reader = new FileStream(fileName, FileMode.Open, FileAccess.Read);
DataContractSerializer input;
input = new DataContractSerializer(typeof(CourseWork));
courseWork = (CourseWork)input.ReadObject(reader);
reader.Close();
}
catch (IOException)
{
Console.WriteLine("Invalid file name.\n");
}
break;
case "3": // Write course work to JSON file
// prompt user for file name
Console.Write("Enter a file name to write to: ");
fileName = Console.ReadLine();
// serialization code
FileStream jsonWriter = new FileStream(fileName, FileMode.Create, FileAccess.Write);
DataContractJsonSerializer jsonSer;
jsonSer = new DataContractJsonSerializer(typeof(CourseWork));
jsonSer.WriteObject(jsonWriter, courseWork);
jsonWriter.Close();
break;
case "4": // Write course work to XML file
// prompt user for file name
Console.Write("Enter a file name to write to: ");
fileName = Console.ReadLine();
// serialization code
FileStream xmlWriter = new FileStream(fileName, FileMode.Create, FileAccess.Write);
DataContractSerializer xmlSer;
xmlSer = new DataContractSerializer(typeof(CourseWork));
xmlSer.WriteObject(xmlWriter, courseWork);
xmlWriter.Close();
break;
case "5": // Display course work data on screen
Console.WriteLine(courseWork);
Console.WriteLine("Overall grade: " + courseWork.CalculateGrade());
break;
case "6": // Find submission
Console.Write("Enter assignment name: ");
string assignment = Console.ReadLine();
Submission s = courseWork.FindSubmission(assignment);
if (s != null)
{
Console.WriteLine(s);
}
else
{
Console.WriteLine("Submission not found");
}
break;
case "7": // Exit
Console.WriteLine("Exiting program.\n");
break;
default:
Console.WriteLine("Invalid input. Please enter a choice from the menu.\n");
break;
}
Console.WriteLine();
} while (menuSelection != "7"); // display menu until user enters "16" to exit
}
private void OpenCW_Click(object sender, RoutedEventArgs e)
{
// Created a insteance of File Dialog window
// WHY if i put this here the filter doesnt work?
// DialogResult result = openFileDialog.ShowDialog();
// Sets the default path to the dialog window to the current project directory
openFileDialog.InitialDirectory = Directory.GetCurrentDirectory();
// Sets the default filter of the dialog windows
openFileDialog.Filter = "JSON files (*.json) | *.json";
// If you have multiple filters is will select the the that is in the given index and the rest will be seen in the dropdown menu
// Where you will need to manually select them
openFileDialog.FilterIndex = 1;
// Creates a dialog result obj based on openFileDialog
DialogResult result = openFileDialog.ShowDialog();
// If the dialog box OK is pressed
if (result == System.Windows.Forms.DialogResult.OK)
{
// Clear the List Views
categoryLV.Items.Clear();
assignmentLV.Items.Clear();
submissionLV.Items.Clear();
// Set text box to the file name selected
courseWorkTB.Text = openFileDialog.FileName;
// Deserialize JSON file and save results in cw coursework variable
cw = (CourseWork)ReadJsonFile(cw);
// Set text box to the course name from the Json file
courseNameTB.Text = cw.CourseName;
// Sets the text box to the grade that is calculated in the Dll file.
// Then converts it to a String
overallGradeTB.Text = Convert.ToString(cw.CalculateGrade());
// Adds iterated through Categories list
// Adds the datat to the list view
foreach (var i in cw.Categories)
{
categoryLV.Items.Add(i);
}
// Adds iterated through Assignment list
// Adds the datat to the list view
foreach (var i in cw.Assignment)
{
assignmentLV.Items.Add(i);
}
// Adds iterated through Submission list
// Adds the datat to the list view
foreach (var i in cw.Submission)
{
submissionLV.Items.Add(i);
}
// Sets FindSubmission textbox's to Null when new file is loaded in
targetAsgNameTB.Text = null;
assignmentNameTB.Text = null;
categoriesNameTB.Text = null;
gradeTB.Text = null;
}
// System.Diagnostics.Process.Start(Directory.GetCurrentDirectory());
// courseWorkTB.Text = Directory.GetCurrentDirectory();
}