private void reevaluateButton_Click(object sender, EventArgs e)
{
reevaluateButton.Enabled = false;
updateDatabaseButton.Enabled = true;
points = TableArrayHandling.CountScore(chosenAnswers, correctAnswers);
pointsValueLabel.Text = points.ToString();
// draw both chosen and correct answers again
ResetTableImages();
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);
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);
}
/// <summary>
/// Evaluates answers contained in an image of an answer sheet against a set of correct answers.
/// </summary>
/// <param name="sheetFilename">The path to the image containing answers to be evaluated.</param>
/// <param name="correctAnswers">Correct answers to evaluate against.</param>
/// <param name="category">The category this sheet belongs to.</param>
/// <param name="year">The year this sheet belongs to.</param>
/// <exception cref="InvalidOperationException">Thrown when the correct answers haven't been loaded prior to the execution of this function.</exception>
public Result Evaluate(string sheetFilename, bool[,,] correctAnswers, string category, int year)
{
if (correctAnswers == null)
{
throw new InvalidOperationException(Properties.Resources.ExceptionTextCorrectAnswersNotLoaded);
}
// get the answers from the sheet
bool[,,] studentNumberAnswers;
bool[,,] answers;
if (ExtractAnswers(sheetFilename, out studentNumberAnswers, out answers) == false)
{
return(new Result(true));
}
// get the student number
int studentNumber = StudentTableToNumber(studentNumberAnswers);
// count the score
int score = TableArrayHandling.CountScore(answers, correctAnswers);
return(new Result(year, category, studentNumber, answers, correctAnswers, score, sheetFilename, false));
}