Page 377 - Writing Excel Macros with VBA, 2nd Edition

21.6 The Axis Object

Table 21-2 shows the properties and methods of the Axis object. As you can see, Axis objects are
fairly involved in their own right. Fortunately, most of the members in Table 21-2 are self-
explanatory, so we consider them only briefly. Note that most of these members correspond to the
myriad check boxes and edit boxes in the five tabs of the Excel Format Axis dialog box.

Table 21-2. Members of the Axis Object

Application HasDisplayUnitLabel<v9> MinorTickMark

AxisBetweenCategories HasMajorGridlines MinorUnit

AxisGroup HasMinorGridlines MinorUnitIsAuto

AxisTitle HasTitle MinorUnitScale

BaseUnit Height Parent

BaseUnitIsAuto Left ReversePlotOrder

Border MajorGridlines ScaleType

CategoryNames MajorTickMark Select

CategoryType MajorUnit TickLabelPosition

Creator MajorUnitIsAuto TickLabels

Crosses MajorUnitScale TickLabelSpacing

CrossesAt MaximumScale TickMarkSpacing

Delete MaximumScaleIsAuto Top

DisplayUnit<v9> MinimumScale Type

DisplayUnitCustom<v9> MinimumScaleIsAuto Width

DisplayUnitLabel<v9> MinorGridlines

21.6.1 AxisGroup Property

This read-only property returns the group for the specified axis. It can be either xlPrimary (=1)
or xlSecondary (=2).

21.6.2 Axis Titles and Their Formatting

The AxisTitle property returns an AxisTitle object that represents the title of the specified axis.
21.6.2.1 HasTitle property (R/W Boolean)
Before we can format an axis title, we must tell Excel that the axis has a title using the HasTitle
property:
AxisObject.HasTitle = True

The AxisTitle object has several properties, the most prominent of which are the following:
AutoScaleFont

Scales the label text font size is automatically when the chart size changes when this
property is True. The default value is True.

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