How to trigger a TCXButtonEdit OnButtonClick event

Hi,

   I am having a problem trying to trigger the OnButtonClick event and the help/manual doesn't seem to help/work, and would like some feed back to see if its possible.

 Here's what I am hoping to accomplish.

  I have the above TCXButtonEdit on a UserForm.

  I have exported that form to a file *.aqfm

  I have a description.xml and a dialog.js file  that the description file is referencing as the script name.

  I have setup the KDTOperation so that my form comes up when I drag the keywork operation onto the keyword test script.

What I want to be able to do is, when the KDTOperation is drag into the test script, it shows the form, and on that form i want to click the button on the Text Editor field, (the button is part of tcxbuttonedit control), and opens up a OpenDialog. This allows me to select a file , and fill in the Text portion of the TCXButtonEdit with the filename.

Below is the desription.xml file - the OnButtonClick has been place inside the <Events> tag as well. This is the current code i have while testing for ways to make it work.

<ScriptExtensionGroup Name="EA"><Category Name="EA Extensions"><ScriptExtension Name="Common Dialog Controls" Author="" Version="" HomePage=""><Script Name="dialogs.js" InitRoutine="" FinalRoutine=""><RuntimeObject Name="Dialog Controls" Namespace="EA"><Method Name="OpenFile" Routine="OpenFile" /><Method Name="SaveAs" Routine="SaveAs" /><Description>Dialog Controls</Description></RuntimeObject><KDTOperation Name="Open File" Category="Dialogs" ICON="" OperationType="Group"><Data><Field Name="FileName" DefaultValue="" /><Field Name="OpenOrSave" DefaultValue="Open" /></Data><Events><Event Name="OnExecute" Routine="OpenFile_OnExecute" /><Event Name="OnSetup" Routine="OpenFile_OnSetup" /><Event Name="OnCreate" Routine="OpenFile_OnCreate" /></Events><Columns><Column Name="Item" Value="Open a File"  /><Column Name="Operation" Value="Open dialog window to select a file" ><Event Name="OnButtonClick" Routine="OpenSaveFileDialog_OnClick" /></Column></Columns></KDTOperation></Script><Description>Dialog Controls</Description></ScriptExtension></Category></ScriptExtensionGroup>

Here's the code for the above function of the OnButtonClick

function OpenSaveFileDialog_OnClick(Sender,AButtonIndex)
{
 var frm=UserForms["DialogWindow"]; 
 var OD=frm["OD"];
 if(OD["Execute"]())
 {
 frm["txtFileName"]["Text"]=OD["FileName"];
 return true;
 }
 return false;
}

function test()
{
 if(UserForms["DialogWindow"]["ShowModal"]()!=mrOk || UserForms["DialogWindow"]["txtFileName"]["Text"]=="")
 return false;

 return true;
}

If i run the above test it works fine ( i had to assign the OnSaveFileDialog_OnClick function into the TCXButtonEdit's event for OnButtonClick. So I know there's no issue with the codes section.

But I cannot figure out yet how to run the OnSaveFileDialog_OnClick function when I am in the keyword testing design mode. 

Any help appreciated