//****************************************************
// Method: OpenCourseWorkBtn_Click
//
// Purpose: Opens file chooser dialog, deserializes JSON data using CouseWork.dll and populates
// controls on the front end with said data.
//****************************************************
private void OpenCourseWorkBtn_Click(object sender, RoutedEventArgs e)
{
string filename = "";
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.Multiselect = false;
openFileDialog.Filter = "JSON files (*.json)|*.json";
openFileDialog.InitialDirectory = Directory.GetCurrentDirectory();
openFileDialog.Title = "Open Course Work From JSON";
if (openFileDialog.ShowDialog() == true)
{
filename = openFileDialog.FileName;
CourseWorkFilenameTb.Text = filename;
}
else
{
return;
}
try
{
CategoriesListView.Items.Clear();
AssignmentsListView.Items.Clear();
SubmissionsListView.Items.Clear();
FileStream fileStream;
DataContractJsonSerializer serializerJSON;
fileStream = new FileStream(filename, FileMode.Open, FileAccess.Read);
serializerJSON = new DataContractJsonSerializer(typeof(CourseWork.CourseWork));
cw = (CourseWork.CourseWork)serializerJSON.ReadObject(fileStream);
CourseNameTb.Text = cw.CourseName;
OverallGradeTb.Text = Math.Round(cw.CalculateGrade(), 2).ToString();
foreach (Category c in cw.Categories)
{
CategoriesListView.Items.Add(c);
}
foreach (Assignment a in cw.Assignments)
{
AssignmentsListView.Items.Add(a);
}
foreach (Submission s in cw.Submissions)
{
SubmissionsListView.Items.Add(s);
}
TargetAssignmentTb.Clear();
AssignmentNameTb.Clear();
CategoryNameTb.Clear();
GradeTb.Clear();
}
catch
{
MessageBoxResult result = MessageBox.Show("Error parsing JSON file.",
"Error",
MessageBoxButton.OK,
MessageBoxImage.Error);
}
}
private void Clear()
{
SaveBtn.Enabled = true;
CategoryNameTb.Text = "";
CategoryNameTb.Focus();
}
