/// <summary>
/// Gets data from the scan item field and shows it.
/// </summary>
private void PopulateForm()
{
// load scan
scanPictureBox.Image = ImageHandling.GetBitmap(scanItem.Image);
// load the answers
List <KlokanTestDBExpectedAnswer> expectedValues = new List <KlokanTestDBExpectedAnswer>(scanItem.ExpectedValues);
TableArrayHandling.DbSetToAnswers(expectedValues, out expectedValuesStudentTable, out expectedValuesAnswerTable);
FormTableHandling.DrawAnswers(studentTablePictureBox, expectedValuesStudentTable, 0, FormTableHandling.DrawCross, Color.Black);
FormTableHandling.DrawAnswers(answerTable1PictureBox, expectedValuesAnswerTable, 0, FormTableHandling.DrawCross, Color.Black);
FormTableHandling.DrawAnswers(answerTable2PictureBox, expectedValuesAnswerTable, 1, FormTableHandling.DrawCross, Color.Black);
FormTableHandling.DrawAnswers(answerTable3PictureBox, expectedValuesAnswerTable, 2, FormTableHandling.DrawCross, Color.Black);
bool[,,] computedValuesStudentTable;
bool[,,] computedValuesAnswerTable;
List <KlokanTestDBComputedAnswer> computedValues = new List <KlokanTestDBComputedAnswer>(scanItem.ComputedValues);
TableArrayHandling.DbSetToAnswers(computedValues, out computedValuesStudentTable, out computedValuesAnswerTable);
FormTableHandling.DrawAnswers(studentTablePictureBox, computedValuesStudentTable, 0, FormTableHandling.DrawCircle, Color.Red);
FormTableHandling.DrawAnswers(answerTable1PictureBox, computedValuesAnswerTable, 0, FormTableHandling.DrawCircle, Color.Red);
FormTableHandling.DrawAnswers(answerTable2PictureBox, computedValuesAnswerTable, 1, FormTableHandling.DrawCircle, Color.Red);
FormTableHandling.DrawAnswers(answerTable3PictureBox, computedValuesAnswerTable, 2, FormTableHandling.DrawCircle, Color.Red);
}
private void discardButton_Click(object sender, EventArgs e)
{
ResetTableImages();
// draw the original answers
FormTableHandling.DrawAnswers(studentTablePictureBox, expectedValuesStudentTable, 0, FormTableHandling.DrawCross, Color.Black);
FormTableHandling.DrawAnswers(answerTable1PictureBox, expectedValuesAnswerTable, 0, FormTableHandling.DrawCross, Color.Black);
FormTableHandling.DrawAnswers(answerTable2PictureBox, expectedValuesAnswerTable, 1, FormTableHandling.DrawCross, Color.Black);
FormTableHandling.DrawAnswers(answerTable3PictureBox, expectedValuesAnswerTable, 2, FormTableHandling.DrawCross, Color.Black);
bool[,,] computedValuesStudentTable;
bool[,,] computedValuesAnswerTable;
List <KlokanTestDBComputedAnswer> computedValues = new List <KlokanTestDBComputedAnswer>(scanItem.ComputedValues);
TableArrayHandling.DbSetToAnswers(computedValues, out computedValuesStudentTable, out computedValuesAnswerTable);
FormTableHandling.DrawAnswers(studentTablePictureBox, computedValuesStudentTable, 0, FormTableHandling.DrawCircle, Color.Red);
FormTableHandling.DrawAnswers(answerTable1PictureBox, computedValuesAnswerTable, 0, FormTableHandling.DrawCircle, Color.Red);
FormTableHandling.DrawAnswers(answerTable2PictureBox, computedValuesAnswerTable, 1, FormTableHandling.DrawCircle, Color.Red);
FormTableHandling.DrawAnswers(answerTable3PictureBox, computedValuesAnswerTable, 2, FormTableHandling.DrawCircle, Color.Red);
editButton.Enabled = true;
applyButton.Enabled = false;
discardButton.Enabled = false;
viewMode = true;
}
private void applyButton_Click(object sender, EventArgs e)
{
if (addMode && (scanFilePath == null || scanFilePath == ""))
{
MessageBox.Show(Properties.Resources.ErrorTextNoFileSelected, Properties.Resources.ErrorCaptionGeneral,
MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (!TableArrayHandling.CheckAnswers(expectedValuesStudentTableTemp, 0))
{
MessageBox.Show(Properties.Resources.ErrorTextStudentNumberNotSelected, Properties.Resources.ErrorCaptionGeneral,
MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
for (int i = 0; i < 3; i++)
{
if (!TableArrayHandling.CheckAnswers(expectedValuesAnswerTableTemp, i))
{
MessageBox.Show(Properties.Resources.ErrorTextExpectedAnswersNotSelected, Properties.Resources.ErrorCaptionGeneral,
MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
// apply the changes
expectedValuesStudentTable = expectedValuesStudentTableTemp;
expectedValuesAnswerTable = expectedValuesAnswerTableTemp;
// draw the computed answers for comparison (if there are any)
bool[,,] computedValuesStudentTable;
bool[,,] computedValuesAnswerTable;
List <KlokanTestDBComputedAnswer> computedValues = new List <KlokanTestDBComputedAnswer>(scanItem.ComputedValues);
TableArrayHandling.DbSetToAnswers(computedValues, out computedValuesStudentTable, out computedValuesAnswerTable);
FormTableHandling.DrawAnswers(studentTablePictureBox, computedValuesStudentTable, 0, FormTableHandling.DrawCircle, Color.Red);
FormTableHandling.DrawAnswers(answerTable1PictureBox, computedValuesAnswerTable, 0, FormTableHandling.DrawCircle, Color.Red);
FormTableHandling.DrawAnswers(answerTable2PictureBox, computedValuesAnswerTable, 1, FormTableHandling.DrawCircle, Color.Red);
FormTableHandling.DrawAnswers(answerTable3PictureBox, computedValuesAnswerTable, 2, FormTableHandling.DrawCircle, Color.Red);
updateButton.Enabled = true;
editButton.Enabled = true;
applyButton.Enabled = false;
discardButton.Enabled = false;
viewMode = true;
}
/// <summary>
/// Extract answer sheet data from the database and display it in the form.
/// Returns false if data could not be loaded.
/// </summary>
private bool PopulateForm()
{
using (var db = new KlokanDBContext())
{
// load sheet data
var sheetQuery = from sheet in db.AnswerSheets
where sheet.AnswerSheetId == answerSheetId
select sheet;
KlokanDBAnswerSheet answerSheet = sheetQuery.FirstOrDefault();
if (answerSheet == null)
{
MessageBox.Show(Properties.Resources.ErrorTextSheetNotFoundInDatabase, Properties.Resources.ErrorCaptionGeneral,
MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
var instanceQuery = from instance in db.Instances
where instance.InstanceId == answerSheet.InstanceId
select instance;
KlokanDBInstance currentInstance = instanceQuery.FirstOrDefault();
if (answerSheet == null)
{
MessageBox.Show(Properties.Resources.ErrorTextSheetNotFoundInDatabase, Properties.Resources.ErrorCaptionGeneral,
MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
studentNumber = answerSheet.StudentNumber;
// show sheet data
studentNumberValueLabel.Text = answerSheet.StudentNumber.ToString();
idValueLabel.Text = answerSheet.AnswerSheetId.ToString();
yearValueLabel.Text = currentInstance.Year.ToString();
categoryValueLabel.Text = currentInstance.Category.ToString();
pointsValueLabel.Text = answerSheet.Points.ToString();
// load scan
scanPictureBox.Image = ImageHandling.GetBitmap(answerSheet.Scan);
// load answers and draw them
var chosenAnswersQuery = from chosenAnswer in db.ChosenAnswers
where chosenAnswer.AnswerSheetId == answerSheetId
select chosenAnswer;
var chosenAnswersList = chosenAnswersQuery.ToList();
if (chosenAnswersList.Count == 0)
{
MessageBox.Show(Properties.Resources.ErrorTextSheetNotFoundInDatabase, Properties.Resources.ErrorCaptionGeneral,
MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
TableArrayHandling.DbSetToAnswers(chosenAnswersList, out chosenAnswers);
FormTableHandling.DrawAnswers(table1PictureBox, chosenAnswers, 0, FormTableHandling.DrawCross, Color.Black);
FormTableHandling.DrawAnswers(table2PictureBox, chosenAnswers, 1, FormTableHandling.DrawCross, Color.Black);
FormTableHandling.DrawAnswers(table3PictureBox, chosenAnswers, 2, FormTableHandling.DrawCross, Color.Black);
var correctAnswersQuery = from correctAnswer in db.CorrectAnswers
where correctAnswer.InstanceId == answerSheet.InstanceId
select correctAnswer;
var correctAnswersList = correctAnswersQuery.ToList();
if (correctAnswersList.Count == 0)
{
MessageBox.Show(Properties.Resources.ErrorTextSheetNotFoundInDatabase, Properties.Resources.ErrorCaptionGeneral,
MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
TableArrayHandling.DbSetToAnswers(correctAnswersQuery.ToList(), out correctAnswers);
FormTableHandling.DrawAnswers(table1PictureBox, correctAnswers, 0, FormTableHandling.DrawCircle, Color.Red);
FormTableHandling.DrawAnswers(table2PictureBox, correctAnswers, 1, FormTableHandling.DrawCircle, Color.Red);
FormTableHandling.DrawAnswers(table3PictureBox, correctAnswers, 2, FormTableHandling.DrawCircle, Color.Red);
}
return(true);
}
private void evaluateButton_Click(object sender, EventArgs e)
{
if (MessageBox.Show(Properties.Resources.PromptTextEvaluationStart, Properties.Resources.PromptCaptionEvaluationStart,
MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.No)
{
return;
}
List <TestKlokanInstance> testInstances = new List <TestKlokanInstance>();
// get all available test instances
using (var testDB = new KlokanTestDBContext())
{
var allScansQuery = from scan in testDB.Scans
select scan;
foreach (var scan in allScansQuery)
{
bool[,,] studentExpectedValues;
bool[,,] answerExpectedValues;
TableArrayHandling.DbSetToAnswers(new List <KlokanTestDBExpectedAnswer>(scan.ExpectedValues), out studentExpectedValues, out answerExpectedValues);
TestKlokanInstance testInstance = new TestKlokanInstance {
ScanId = scan.ScanId,
Image = scan.Image,
StudentExpectedValues = studentExpectedValues,
AnswerExpectedValues = answerExpectedValues
};
testInstances.Add(testInstance);
}
}
if (testInstances.Count == 0)
{
MessageBox.Show(Properties.Resources.InfoTextNoTestItems, Properties.Resources.InfoCaptionNoTestItems,
MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
TestKlokanBatch testBatch = new TestKlokanBatch {
Parameters = chosenParameters,
TestInstances = testInstances
};
ProgressDialog progressDialog = new ProgressDialog(new CancellationTokenSource());
progressDialog.SetProgressLabel(ProgressBarState.Evaluating);
var jobScheduler = new JobScheduler(testBatch, progressDialog);
// new thread created, so that all tasks in it are planned in the threadpool and not in the WinForms synchronization context
Thread thread = new Thread(jobScheduler.Run);
thread.IsBackground = true;
thread.Start();
progressDialog.StartPosition = FormStartPosition.CenterScreen;
progressDialog.ShowDialog();
PopulateDataView();
ShowAverageCorrectness();
}