Article ID: 147134
Article Last Modified on 1/19/2007
APPLIES TO
- Microsoft Access 95 Standard Edition
- Microsoft Access 97 Standard Edition
This article was previously published under Q147134
SYMPTOMS
Advanced: Requires expert coding, interoperability, and multiuser skills.
When you use the CreateControl() function to programmatically create an OLE
control, only an empty container is created.
CAUSE
The CreateControl() function does not add the OLE data needed to make the
control functional. This occurs even if the procedure sets the Class or
OLEClass properties of the control.
RESOLUTION
In order to create an OLE control at run time, you must first create a
"template" form which contains all OLE controls that your procedure needs
to create at run time. Then, the procedure must set the OLEData property of
the new custom control to the OLEData property of the OLE control on the
"template" form.
Create a form with all OLE controls that you plan for your procedure to
create at run time. The procedure must set the OLEData property of the new
OLE control to the OLEData property of the appropriate control on the
template form. The following steps demonstrate how to do this with the
Calendar control included with Microsoft Access.
This article assumes that you are familiar with Visual Basic for
Applications and with creating Microsoft Access applications using the
programming tools provided with Microsoft Access. For more information
about Visual Basic for Applications, please refer to your version of the
"Building Applications with Microsoft Access" manual.
- Open the sample database Northwind.mdb.
- Create a new blank form named Template.
- Insert a Calendar control and name it Calendar.
- Create a module and type the following line in the Declarations section
if it is not already there:
- Type the following procedure:
Sub CreateCalendar()
Dim frm As Form
Dim ctl As Control
DoCmd.OpenForm "Template", acDesign , , , , acHidden
Set frm = CreateForm()
Set ctl = CreateControl(frm.Name, acCustomControl, acDetail)
ctl.OLEData = Forms!Template!Calendar.OLEData
DoCmd.Restore
DoCmd.Close acForm, "Template"
End Sub
- To test this function, type the following line in the Debug window,
and then press ENTER:
Note that a new form is created with a Calendar control.
REFERENCES
For more information about the CreateControl() function, search the Help
Index for CreateControl Function, or ask the Microsoft Access 97 Office
Assistant.
Keywords: kbprb kbprogramming KB147134