private void ProcessCategoryData()
{
_categoryValues.Clear();
if (this.DataSource != null && !string.IsNullOrEmpty(CategoryValueMemberPath))
{
BindingEvaluator eval = new BindingEvaluator(CategoryValueMemberPath);
foreach (object dataItem in this.DataSource)
{
_categoryValues.Add(eval.Eval(dataItem).ToString());
}
}
}
private void SetData()
{
_titles.Clear();
_values.Clear();
if (string.IsNullOrWhiteSpace(TitleMemberPath) || string.IsNullOrWhiteSpace(ValueMemberPath))
{
return;
}
var titleEvaluator = new BindingEvaluator(TitleMemberPath);
var valueEvaluator = new BindingEvaluator(ValueMemberPath);
foreach (var dataItem in DataSource)
{
_titles.Add(titleEvaluator.Eval(dataItem).ToString());
_values.Add((double)valueEvaluator.Eval(dataItem));
if (!(dataItem is INotifyPropertyChanged))
{
continue;
}
(dataItem as INotifyPropertyChanged).PropertyChanged -= OnDataSourceItemPropertyChanged;
(dataItem as INotifyPropertyChanged).PropertyChanged += OnDataSourceItemPropertyChanged;
}
_total = _values.Sum();
}
private void SetData()
{
_titles.Clear();
_values.Clear();
_userData.Clear();
if (!string.IsNullOrEmpty(TitleMemberPath) && !string.IsNullOrEmpty(ValueMemberPath))
{
BindingEvaluator titleEval = new BindingEvaluator(TitleMemberPath);
BindingEvaluator valueEval = new BindingEvaluator(ValueMemberPath);
BindingEvaluator userDataEval = new BindingEvaluator(UserDataMemberPath);
foreach (object dataItem in this.DataSource)
{
_titles.Add(titleEval.Eval(dataItem).ToString());
_values.Add((double)valueEval.Eval(dataItem));
_userData.Add(userDataEval.Eval(dataItem));
if (dataItem is INotifyPropertyChanged)
{
(dataItem as INotifyPropertyChanged).PropertyChanged -= OnDataSourceItemPropertyChanged;
(dataItem as INotifyPropertyChanged).PropertyChanged += new PropertyChangedEventHandler(OnDataSourceItemPropertyChanged);
}
}
_total = _values.Sum();
}
}
private void ProcessCategoryData()
{
_categoryValues.Clear();
if (DataSource == null || string.IsNullOrEmpty(CategoryValueMemberPath))
{
return;
}
var evaluator = new BindingEvaluator(CategoryValueMemberPath);
foreach (var val in from object dataItem in DataSource
select string.IsNullOrEmpty(CategoryFormatString)
? (evaluator.Eval(dataItem).ToString())
: string.Format(CategoryFormatString, evaluator.Eval(dataItem)))
_categoryValues.Add(val);
}
