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See
Also
This example shows you how
to:
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·
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Create an ActiveX Control Column |
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Have it respond to database values. |
For this example, you need to
have a version of the standard Microsoft Calendar Control on your
machine. You also need a sample database column of the DATE data
type.
To create the ActiveX control
column subclass:
| 1.
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Click the Controls tab page, and expand the following nodes in
this order: Column Display, OLE Container, ActiveX Control
Column. |
| 2.
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In the list of available ActiveX Control Columns, click with
your right mouse button on the Calendar Control Column class, and
choose New from the resulting menu. |
A subclass of the Calendar
class will be created.
Right-click on the new
subclass, and rename it to MyCalendarColumn.
Press Enter, or click OK to
dismiss the information box.
To use the ActiveX control
column subclass:
| 3.
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From the Info Boxes tab page of the Windows Designer catalog,
open an info window class containing a field based on a DATE base
column. |
| 4.
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Open the Property Inspector for the text box corresponding to
the DATE base column. |
| 5.
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Set the Display Class property of this text box to
"MyCalendarColumn". |
| 6.
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Using the Object Tree, navigate to the active_data child object
of the column control. |
| 7.
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On the Behavior tab page, make sure the Default Bind property
of the active_data object refers to the property holding the
selected date value. For version 7 of the calendar control, this is
the "_Value" property (with an underscore), and for version 8, the
"Value" property. In either case the property can be found on the
General tab page of the Property Inspector. |
| 8.
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Run the info window and perform a query in order to see the
result. The date values in the database are now displayed in the
calendar layout instead of in a text box. |
NOTE:
This example only shows how to display existing date values in a
different way. You cannot use this implementation to manipulate the
date values, or to specify query conditions.
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