There are quite a few methods for getting information about
data in a graph in a DataWindow control at runtime. For all methods,
you provide the name of the graph within the DataWindow as the first
argument. You can provide your own name for graph controls when
you insert them in the DataWindow painter. If the presentation style
is Graph, you do not need to name the graph.
These methods get information about the data and its display.
For several of them, an argument is passed by reference to hold
the requested information:
Table 12-1: Common methods
for graph DataWindows
Method
|
Information provided
|
|---|
CategoryCount
|
The number of categories in a graph
|
CategoryName
|
The name of a category, given its number
|
DataCount
|
The number of data points in a series
|
FindCategory
|
The number of a category, given its name
|
FindSeries
|
The number of a series, given its name
|
GetData
|
The value of a data point, given its
series and position (superseded by GetDataValue, which is more flexible)
|
GetDataPieExplode
|
The percentage of the pie's radius that
the pie slice is to be moved away from the center (exploded)
|
GetDataStyle
|
The color, fill pattern, or other visual
property of a specified data point
|
GetDataValue
|
The value of a data point, given its
series and position
|
GetSeriesStyle
|
The color, fill pattern, or other visual
property of a specified series
|
ObjectAtPointer
|
The graph element the mouse was positioned
over when it was clicked
|
SeriesCount
|
The number of series in a graph
|
SeriesName
|
The name of a series, given its number
|
