public DateTimeAxisGrouping()
{
InitializeComponent();
Tag = AppResources.DateTimeAxisGroupingTag;
// Instantiate and assign the AxisGroupProvider,
//and set the TimeUnits for each desired level.
// To use the built-in provider:
// DateTimeGroupProvider mtgp = new DateTimeGroupProvider(axis);
// For the purposes of the sample, use the included provider.
Axis axis = flexChart.AxisX;
MyDateTimeGroupProvider mtgp = new MyDateTimeGroupProvider(axis);
axis.GroupProvider = mtgp;
// Explicitly set Groups by TimeUnit
//mtgp.GroupTypes.Add(TimeUnits.Month);
//mtgp.GroupTypes.Add(TimeUnits.Quarter);
//mtgp.GroupTypes.Add(TimeUnits.Year);
// Non-default formatting is available.
//mtgp.GroupFormats.Add(TimeUnits.Quarter, "Q{0} / {1}");
// can force a label for the minimum and maximum limits on the axis.
//axis.LabelMin = axis.LabelMax = true;
// can provide and set MajorUnit in terms of TimeUnits.
// below the MajorUnit is set to 2 months.
//axis.TimeUnit = TimeUnits.Month;
//axis.MajorUnit = 2;
}
private void cbMajorUnit_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (flexChart == null)
{
return;
}
ComboBox cb = sender as ComboBox;
int idx = cb.SelectedIndex;
Axis ax = flexChart.AxisX;
switch (idx)
{
case 0:
ax.MajorUnit = double.NaN;
ax.TimeUnit = TimeUnits.Day;
break;
case 1:
ax.MajorUnit = 1;
ax.TimeUnit = TimeUnits.Week;
break;
case 2:
ax.MajorUnit = 2;
ax.TimeUnit = TimeUnits.Week;
break;
case 3:
ax.MajorUnit = 1;
ax.TimeUnit = TimeUnits.Month;
break;
case 4:
ax.MajorUnit = 2;
ax.TimeUnit = TimeUnits.Month;
break;
case 5:
ax.MajorUnit = 3;
ax.TimeUnit = TimeUnits.Month;
break;
}
MyDateTimeGroupProvider mtgp = flexChart.AxisX.GroupProvider as MyDateTimeGroupProvider;
if (mtgp != null)
{
mtgp.GroupTypes.Clear(); // reset automatic calculation.
}
}
