public object Convert(object value, Type targetType, object parameter, string culture)
{
string displayMemberPath = parameter as string;
if (String.IsNullOrWhiteSpace(displayMemberPath) || value == null)
{
return(String.Empty);
}
PropertyInfo propertyInfo;
return(string.Join(", ", (value as IEnumerable <object>).Select(item =>
{
if (displayMemberPath == ".")
{
return item;
}
propertyInfo = DataControlHelper.GetPropertyInfo(item.GetType(), displayMemberPath);
if (propertyInfo == null)
{
return String.Empty;
}
return propertyInfo.GetValue(item, null);
}).ToArray()));
}
object GetSelectedValue(object item)
{
if (item == null)
{
return(null);
}
if (SelectedValuePath == ".")
{
return(item);
}
return(DataControlHelper.GetPropertyInfo(item.GetType(), SelectedValuePath)?.GetValue(item, null));
}