The appearance or content changing and label overlap resolving may require series label customization and are described in the following sections.
The table below lists the main appearance properties that affect element appearance and functionality.
This option enables the repositioning of series point labels to avoid overlapping in a chart.
The SeriesLabel.ResolveOverlappingMode property specifies the algorithm used to resolve overlapping.
The set of available automatic modes depends on the series type. The following table lists all algorithms and explains for which series type an algorithm is available.
| Member |
Description |
Available for Series Types |
| None |
The overlapping resolving algorithm is disabled.
|
All series types. |
| Default |
The default algorithm to re-position labels in a random way, to avoid overlapping labels.
|
All series types. The default algorithm is specific for each series type group. |
| HideOverlapped |
If two or more labels overlap, some of them are automatically hidden, to avoid overlapping.
|
All series types, except the Pie (Donut) and Funnel series. |
| JustifyAroundPoint |
Only labels that are overlapping change their position. They are re-positioned in such a way, so that they are moved around the corresponding point's center, but their indent from the point center is preserved.
|
This mode is supported for series view types that visually represent a data point as a point. Thus, this encompasses all series types, except the Pie (Donut), Bars and Financial series. |
| JustifyAllAroundPoint |
All labels (both overlapping and non-overlapping) change their position. They are re-positioned in such a way, so that they are moved around the corresponding point's center, but their indent from the point center is preserved.
|
This mode is supported for series view types that visually represent a data point as a point. Thus, this encompasses all series types, except the Pie (Donut), Bars and Financial series. |
To control the distance between labels and their points, use the SeriesLabel.Indent property.
To view a code example, refer to How to: Adjust Series Labels.
You can control the content of the series labels using the SeriesLabel.TextPattern property. Various placeholders enclosed in braces correspond to the available display patterns. For example, a pair of placeholders specified together (e.g., {A} - {V}), will cause each data point to be represented by both its argument and value, separated by a hyphen.
A full list of available placeholders is detailed below.
| Pattern |
Description |
| {S} |
Displays the name of the series. |
| {A} |
Displays a series point argument. |
| {V} |
Displays series point values. |
|
A Pie (Donut) series specific placeholders |
| {VP} |
Displays series point values as percentages. |
| {TV} |
Displays total group value. |
|
Stacked series specific placeholders |
| {VP} |
Displays series point values as percentages. |
| {G} |
Displays the name of a stacked group. |
| {TV} |
Displays total group value. |
|
A Bubble series specific placeholders |
| {W} |
Displays the weight. |
|
Range series specific placeholders |
| {V1} |
Displays the first value. |
| {V2} |
Displays the second value. |
| {VD} |
Displays the duration between the first and second data point values formatted using a common time format (e.g. HH:MM:SS for date time values and #.## for numeric values). |
| {VDTD} |
Displays the duration between the first and second date-time data point values in days. |
| {VDTH} |
Displays the duration between the first and second date-time data point values in hours. |
| {VDTM} |
Displays the duration between the first and second date-time data point values in minutes in minutes. |
| {VDTS} |
Displays the duration between the first and second date-time data point values in seconds. |
| {VDTMS} |
Displays the duration between the first and second date-time data point values in milliseconds. |
|
Financial series specific placeholders |
| {OV} |
Displays the open value. |
| {HV} |
Displays the high value. |
| {LV} |
Displays the low value. |
| {CV} |
Displays the close value. |
You can also use standard and custom format specifiers, together with the placeholders (e.g., {V:F1}).
Note
Before specifying the {S} placeholder for a series, make sure a series name is specified in the Series.DisplayName property.
To show X-axis quarter year values on the legend, use the "{A:q}" pattern.
To learn more, refer to the Format Specifiers topic in MSDN.