/// <summary>
/// Saves <see cref="Grading"/> to xml file
/// </summary>
/// <param name="filename">The name of the file</param>
/// <param name="data">The data to be saved</param>
public override void WriteToFile(string filename, GradingPercentage data)
{
// Create brand-new xml document
var doc = new XmlDocument();
// Add crucial informations at the top
var docNode = doc.CreateXmlDeclaration("1.0", "UTF-8", null);
doc.AppendChild(docNode);
// Create marks subnode
var MarksNode = doc.CreateElement("Marks");
doc.AppendChild(MarksNode);
// Add every mark to the marks subnode
if (data.IsMarkAIncluded)
{
AddMarkXml(data.MarkA, "A", MarksNode, doc);
}
AddMarkXml(data.MarkB, "B", MarksNode, doc);
AddMarkXml(data.MarkC, "C", MarksNode, doc);
AddMarkXml(data.MarkD, "D", MarksNode, doc);
AddMarkXml(data.MarkE, "E", MarksNode, doc);
AddMarkXml(data.MarkF, "F", MarksNode, doc);
// Finally save the file
if (!WriteXmlDocumentFile(filename, doc))
{
// If something went wrong, throw an exception
throw new Exception("Cannot save criteria file!");
}
}
/// <summary>
/// Converts to <see cref="GradingPercentage"/> object from specified file
/// </summary>
/// <param name="filename">The filename</param>
/// <returns>The <see cref="GradingPercentage"/> object converted from file</returns>
private GradingPercentage GetGradingFromXml(string filename)
{
// Create result object to return at the end
var result = new GradingPercentage
{
// Set default values
Name = Path.GetFileNameWithoutExtension(filename),
IsMarkAIncluded = false,
};
// Get the list of mark nodes
var markNodeList = GetNodeListByNameFromFile(filename, "Mark");
// Loop each node for mark info
foreach (XmlNode node in markNodeList)
{
// Get mark attributes
var mark = (Marks)Enum.Parse(typeof(Marks), node.ChildNodes.Item(0).InnerText);
var topLimit = int.Parse(node.ChildNodes.Item(1).InnerText);
var bottomLimit = int.Parse(node.ChildNodes.Item(2).InnerText);
// Add them to result object
result.UpdateMark(mark, topLimit, bottomLimit);
// Check if mark A should be included
if (mark == Marks.A)
{
result.IsMarkAIncluded = true;
}
}
// Finally return the result object
return(result);
}
/// <summary>
/// Converts values in points to percentage values
/// </summary>
/// <returns>New grading with value in percentage</returns>
public static GradingPercentage ConvertToPercentage(this GradingPoints Grades)
{
var result = new GradingPercentage();
var bottom = 0;
var top = 0;
var maxPoints = 0;
if (Grades.IsMarkAIncluded)
{
maxPoints = Grades.MarkA.TopLimit;
top = PointsToPercent(Grades.MarkA.TopLimit, maxPoints);
bottom = PointsToPercent(Grades.MarkA.BottomLimit, maxPoints);
result.UpdateMark(Marks.A, top, bottom);
result.IsMarkAIncluded = true;
}
else
{
result.IsMarkAIncluded = false;
maxPoints = Grades.MarkB.TopLimit;
}
top = PointsToPercent(Grades.MarkB.TopLimit, maxPoints);
bottom = PointsToPercent(Grades.MarkB.BottomLimit, maxPoints);
result.UpdateMark(Marks.B, top, bottom);
top = bottom - 1;
bottom = PointsToPercent(Grades.MarkC.BottomLimit, maxPoints);
result.UpdateMark(Marks.C, top, bottom);
top = bottom - 1;
bottom = PointsToPercent(Grades.MarkD.BottomLimit, maxPoints);
result.UpdateMark(Marks.D, top, bottom);
top = bottom - 1;
bottom = PointsToPercent(Grades.MarkE.BottomLimit, maxPoints);
result.UpdateMark(Marks.E, top, bottom);
top = bottom - 1;
bottom = PointsToPercent(Grades.MarkF.BottomLimit, maxPoints);
result.UpdateMark(Marks.F, top, bottom);
return(result);
}
/// <summary>
/// Writes the <see cref="GradingPercentage"/> to the file
/// </summary>
public virtual void WriteToFile(string filename, GradingPercentage grading)
{
}
