Dynamic Form Component Events

[jasonchild]

Hi,

I was wondering how to call an event for a dynamically created component. I have created a new form called “MyTestForm” using the forms designer. This form contains a single panel called “pnlTest”.

Then inside my solution code I have:

Dim gTestDlg



Sub Main(Client, GWEvent)



' Initialize a new dialog from my test form

gTestDlg = MyTestForm



' Create a dynamic component at run time

Set testEdit = TEdit.Create(gTestDlg.pnlTest)

with testEdit

.Parent = gTestDlg.pnlTest

.left = 50

.top = 10

.height = 21

.width = 160

.name = "edtTest"

.text = ""

.visible = true

.onClick = "testSub"

end with



' Show the form

gTestDlg.ShowModal



End Sub



Sub testSub(Sender)

MsgBox("Called testSub")

End Sub

The edit box is created successfully, however the on click event does not get called. I have also tried a number of variations to the .onClick value attempting to pass in the sender variable, but I have not be able to get this event to be called.

Any thoughts on what I am doing wrong would be greatly appreciated.

Kind Regards,

Jason Child

[This message was edited by jasonchild on January 29, 2012 at 07:52 PM.]

Topic

[jasonchild]

Has anyone else needed to do this? I can’t be the only one heh. I’m not sure if my post above was clear.

Basically I need to create a new component at run time on a pre-existing formativ form, and then assign an event handler to it.

Any thoughts / feedback would be greatly appreciated.

Regards,

Jason

[Support 1]

Unfortunately this does not seem to be possible. We have not found a way to get VBScript to assign an event handler dynamically.

A couple of suggestions:

• Try experimenting with the VBScript function GetRef (designed to support DHTML events), like this:

    .onClick = GetRef("testSub")

• Develop a COM-enabled component to replace the Form, using a language that supports dynamically assigned event handlers (eg. Delphi, C#, VB.NET). You can create an instance of such a component from a Formativ applet, and pass data between the applet and component. You may find the featured topic .net modules useful.

I hope this helps.

Kind regards,
Advansys Support

[jasonchild]

Ok, thanks for your feedback. I tried using the GetRef function as suggested, but was unable to get this to call my event sub and I’m not sure I have the time in my project plan required to delvelop a com enabled solution to accomodate this need.

This is unfortunate, but I guess I can achieve the same functionality using the limited Utilities.NewControlBoxDialog and either use a button to force an event or use chained dialogs for presenting required fields dependant on dynamic field values. A very outdated UI methodology but functional none the less.

Thank you for your time looking into this, much appreciated.

Regards,

Jason

[Support 1]

OK, thanks for the confirmation about GetRef.

I suggest you seriously consider the option of a COM component, partly because of the obstacle you mention with NewControlBoxDialog in another thread. Also because it’s relatively easy to COM-enable such a component. The featured topic mentioned above includes a link to a working example.

Good luck with the project.

Kind regards,
Advansys Support

[This message was edited by Support 1 on February 01, 2012 at 03:33 PM.]

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