public void AddNew(Step s)
{
StepView newKeyHolder = new StepView(s);
newKeyHolder.PropertyChanged += new PropertyChangedEventHandler(KeyHolder_PropertyChanged);
this.allKeys.Add(newKeyHolder);
}
public void ClearSubKeys(StepView parentKeyHolder)
{
int indexToRemove = this.allKeys.IndexOf(parentKeyHolder) + 1;
while ((indexToRemove < this.allKeys.Count) && (this.allKeys[indexToRemove].Level > parentKeyHolder.Level))
{
this.allKeys.RemoveAt(indexToRemove);
this.DataItemsCount--;
}
}
void KeyHolder_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == "IsExpanded")
{
StepView keyHolder = (StepView)sender;
if (keyHolder.IsExpanded)
{
this.PopulateSubKeys(keyHolder);
}
else
{
this.ClearSubKeys(keyHolder);
}
}
}
public void PopulateSubKeys(StepView parent)
{
int indexParentKey = this.allKeys.IndexOf(parent);
if (indexParentKey == this.allKeys.Count - 1 || this.allKeys[indexParentKey + 1].Level <= parent.Level)
{
for (int i = 0; i < parent.Key.Variants.Count; i++)
{
StepView childKeyHolder = new StepView(parent.Key.Variants[i]);
childKeyHolder.PropertyChanged += KeyHolder_PropertyChanged;
allKeys.Insert(indexParentKey + i + 1, childKeyHolder);
this.DataItemsCount++;
}
}
}