property Chart.HistogramValue (Date as Variant, [Name as Variant], [Group as Variant])
as Double
Gets the value in the histogram at specified date-time, for giving type of bars or/and groups.
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Date as Variant |
A DATE expression that specifies the date-time being queried for its value in
the control's histogram, or a s STRING expression such as "min"
to get the minimum value excepts 0 in the histogram, and "max"
to get the maximum value in the histogram. The min and max flags determines the
minimum and maximum values from the displayed values not from the entire chart.
The Date parameter should be a value between first and last visible date in the
chart, else the HistogramValue property gets -1 result.
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Name as Variant |
A String expression that specifies the name ( or a list of names separated by
comma(,) character ) of the bar to be queried for its value in the histogram.
The Name parameter has no effect, if the chart's histogram displays a single
type of the bar in the histogram. The BarName parameter of the AddBar method or ItemBar(exBarName)
value specifies the name of displayed bar. If Name parameter is missing or
empty, all bars are queried. For instance, if the histogram displays the curves
for multiple type of bars, the Name parameter indicates the name of the bars to
be queried separated by comma(,) character. For instance, "Task,Summary"
queries the values for Task or Summary bars.
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Group as Variant |
A Long expression that specifies the index of the group of bars in the histogram
to be queried, or a String expression that indicates the list of group(index) to
be queried. The Group parameter has no effect, if the chart's histogram displays
no groups in the histogram. Groups are usually displayed when your data is shown
as a tree. If missing or empty, all groups are queried. For instance, "0,1"
queries the values for first and second group of bars.
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Double |
A DOUBLE expression that specifies the value of the specified type/bar, group
and date-time in the histogram. The HistogramValue property returns -1 if any
error occurs. For instance, the histogram is not visible, a date-time that's not
visible in the control's client area, and so on.
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