Can anyone tell me how to disable an activeX control on a form if the control is not loaded on the client?

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Posted on by David John Hills

Good Morning

I have an activeX control on a Form (ax4) where the control is not loaded on every client.

I get an annoying message everytime a client that does not have the control, on their PC, opens the Form.

The error message come from within the super of the forms init method(somewhere).

Is there a simple way I can detected that the control is not availed then remove/diable it on the form?

I had a look at how the GanttClient checks to see if the control is available in the GanttClient class methods checkactiveX and getGantversionfromRegistry, but I could not get this to work from within my form -- the activex control is not initialised before the call to super() in the init method -- so nothing on the control is available ie(enable) . it's got to be initialed before it can be diabled, which is not going to work)

Thanks

David

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David John Hills 35 on at

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It does not look like it is possible to delete/remove the ActiveX control before the Init() method of the form is run.

So looks easier to dynamically add the ActiveX control to the form after the init() method has run (after super) conditionally on it being available.

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Luegisdorf 1,930 on at

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Hi David

I agree with you. Had the same problem and finally decided to add the control at runtime.

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