//****************************************************
// Method: void ButtonOpenFile_Click(object sender, RoutedEventArgs e)
//
// Purpose: opens the windows explorer to the current working directory
// for it to populate the listviews
//
//****************************************************
private void ButtonOpenFile_Click(object sender, RoutedEventArgs e)
{
//course work instance
BCS426Homework4DLL.CourseWork cw = new BCS426Homework4DLL.CourseWork();
//opens the file dialog box
OpenFileDialog openFileDialog = new OpenFileDialog();
//filters the files to only show json files
openFileDialog.Filter = "JSON files (*.json)|*.json";
//openFileDialog.InitialDirectory = @"C:\Users\Samantha\Documents\Fall 2019\BCS426\BCS426Homework4WPF\BCS426Homework4WPF\bin\Debug";
//sets the intital directory to the current working directory
openFileDialog.InitialDirectory = @System.IO.Directory.GetCurrentDirectory();
//changes the title of the dialog box
openFileDialog.Title = "Open Course Work From JSON";
if (openFileDialog.ShowDialog() == true)
{
//gets the filename wanted
string filename = openFileDialog.FileName;
textBoxCourseWorkFilename.Text = filename;
//reads from the file selected into the coursework instance
cw = ReadFromFile(filename);
//calls populate which populates the listviews
Populate(cw);
//clears the find submission text boxes
textBoxAssignment.Clear();
textBoxCategory.Clear();
textBoxGrade.Clear();
}
}
//****************************************************
// Method: BCS426Homework4DLL.CourseWork ReadFromFile(string filename)
//
// Purpose: read from the file using serialization
//
//****************************************************
private BCS426Homework4DLL.CourseWork ReadFromFile(string filename)
{
//creates a course work instance
BCS426Homework4DLL.CourseWork cw = new BCS426Homework4DLL.CourseWork();
FileStream reader = new FileStream(filename, FileMode.Open, FileAccess.Read); //opens the FileStream to read the JSON from
DataContractJsonSerializer serializer; //creates an instance of DataContractJsonSerializer
serializer = new DataContractJsonSerializer(typeof(BCS426Homework4DLL.CourseWork));
cw = (BCS426Homework4DLL.CourseWork)serializer.ReadObject(reader); //reads from the file
reader.Close(); //closes the file
return(cw); //returns the coursework instance
}
//****************************************************
// Method: void ButtonFindSubmission_Click(object sender, RoutedEventArgs e)
//
// Purpose: finds the submission of the user inputed assignment requested
//
//****************************************************
private void ButtonFindSubmission_Click(object sender, RoutedEventArgs e)
{
//creates a CourseWork instance and reads it
BCS426Homework4DLL.CourseWork cw = new BCS426Homework4DLL.CourseWork();
cw = ReadFromFile("courseworkansi.json");
//calls FindSubmission and returns a submission or null depending on the result
BCS426Homework4DLL.Submission s = cw.FindSubmission(textBoxTarget.Text);
//if submission is not null it will put the data into the text boxes
if (s != null)
{
textBoxAssignment.Text = s.AssignmentName;
textBoxCategory.Text = s.CategoryName;
textBoxGrade.Text = s.Grade.ToString(); //converts the type to a string
}
//if it is null it clears the textboxes
else
{
textBoxAssignment.Clear();
textBoxCategory.Clear();
textBoxGrade.Clear();
}
}
//****************************************************
// Method: void Populate(BCS426Homework4DLL.CourseWork courseWork)
//
// Purpose: populates the listviews
//
//****************************************************
private void Populate(BCS426Homework4DLL.CourseWork courseWork)
{
//puts the course name into the textbox
textBoxCourseName.Text = courseWork.CourseName;
//puts the grade into the textbox
textBoxOverallGrade.Text = courseWork.CalculateGrade().ToString(); //converts to string
//loops through all the categories and adds to the category listview
foreach (BCS426Homework4DLL.Category cat in courseWork.Categories)
{
listViewCategories.Items.Add(cat);
}
//loops through all the assignments and adds to the assignment listview
foreach (BCS426Homework4DLL.Assignment assign in courseWork.Assignments)
{
listViewAssignments.Items.Add(assign);
}
//loops through all the submissions and adds to the submission listview
foreach (BCS426Homework4DLL.Submission sub in courseWork.Submissions)
{
listViewSubmissions.Items.Add(sub);
}
}
