public Formula(string name, Topic top, Subject sub)
{
this.name = name;
this.topic = top;
this.subject = sub;
}
//For calling this for a list of subjects
public ListEdit(BindingList<Subject> sb, listType t)
{
type = t;
subjects = sb;
selectedSubject = null;
selectedTopic = null;
InitializeComponent();
}
//For calling this for a list of formulas (as they need both selected subject and topic)
public ListEdit(BindingList<Subject> sb, Subject selSub, Topic selTop, listType t)
{
type = t;
subjects = sb;
selectedSubject = selSub;
selectedTopic = selTop;
InitializeComponent();
}
//Add or remove formulas in a new dialogue box
private void formulaOptions_Click(object sender, EventArgs e)
{
currentSubject = (Subject)listSubject.SelectedValue;
currentTopic = (Topic)listTopic.SelectedValue;
if (currentSubject != null && currentTopic != null)
{
ListEdit ld = new ListEdit(subjects, currentSubject, currentTopic, ListEdit.listType.Formula);
ld.ShowDialog();
if(ld.DialogResult == DialogResult.OK)
{
listFormula.DataSource = null;
listFormula.DataSource = currentTopic.formulas;
}
}
else
{
statusSay.Text = "Invalid Subject or Topic";
}
}
//When a new item on the subject list is selected, update all other lists and show the first formula of the first topic
private void listSubject_SelectedIndexChanged(object sender, EventArgs e)
{
currentSubject = (Subject)listSubject.SelectedValue;
if (currentSubject != null)
{
listTopic.DisplayMember = "name";
listTopic.DataSource = currentSubject.topics;
statusSay.Text = "Selected " + currentSubject.ToString();
}
else if (currentSubject == null)
{
listTopic.DataSource = null;
statusSay.Text = "No subject to be selected";
}
listFormula.DataSource = null;
}
//Add or remove topics in a new dialogue box
private void topicOptions_Click(object sender, EventArgs e)
{
currentSubject = (Subject)listSubject.SelectedValue;
if (currentSubject != null)
{
ListEdit ld = new ListEdit(subjects, currentSubject, ListEdit.listType.Topic);
ld.ShowDialog();
if(ld.DialogResult == DialogResult.OK)
{
listTopic.DataSource = null;
listTopic.DataSource = currentSubject.topics;
if(currentTopic == null && currentSubject.topics.Count > 0)
{
currentTopic = currentSubject.topics[0];
}
}
}
else
{
statusSay.Text = "Invalid Subject.";
}
}
public Topic(string name, Subject parent)
{
this.name = name;
this.subject = parent;
formulas = new BindingList<Formula>();
}