I'm trying to programmatically add a button element to an HTA. I wrote the following code as a test. The button, "Button1", gets added to the HTA window, but when I click it, it doesn't run the "subButtonClickedMsg" subroutine. No error messages are produced.
I added the other two buttons ("Button2" and "Button3") to try to figure out what was wrong.
"Button2" calls the "subButtonClickedMsg" subroutine with no issue.
"Button3" calls the "subChangeButton1ValueAttribute" subroutine which:
1) Changes the value attribute of "Button1" to "Button1 Value Changed"
2) Changes the "onclick" attribute to "subButtonClickedMsg" (which is what it was initially anyway)
3) Displays a MsgBox to prove that the "onclick" attribute is set to "subButtonClickedMsg".
When I click on "Button3", the code performs as expected. However, when I click on "Button1" after clicking "Button3", "Button1" still fails to run the "subButtonClickedMsg" subroutine. Again, no error messages are produced.
I did a Google search and turned up some info on the "addEventListener" method. So I tried adding this code to the "subChangeButton1ValueAttribute" subroutine to test it:
document.getelementById("Button1").addEventListener "onclick", "subMyButtonOnClick", false
but it produced the following script error when I clicked on "Button3":
Script Error
Object doesn't support this property or method:
'document.getelementById(...).addEventListener'
According to this link on MSDN, "addEventListener" should be supported:
https://msdn.microsoft.com/en-us/library/ff975245(v=vs.85).aspx
I've commented the line for now.
What am I missing in trying to programmatically add the button that is causing its onclick event to not execute the specified subroutine?
Thanks in advance for any help.
What I have tried:
<html>
<head>
<title>HTATest2</title>
<HTA:APPLICATION
ID="objHTATest"
APPLICATIONNAME="HTATest"
SCROLL="yes"
SINGLEINSTANCE="yes"
WINDOWSTATE="maximize"
>
</head>
<script type="text/vbscript">
Dim myButton
Sub subButtonClickedMsg
MsgBox "Button has been clicked."
End Sub 'subButtonClickedMsg
Sub subChangeButton1ValueAttribute
'document.getelementById("Button1").addEventListener "onclick", "subMyButtonOnClick", false
myButton.setAttribute "value","Button1 Value Changed"
myButton.setAttribute "onclick","subButtonClickedMsg"
MsgBox "myButton.getAttribute(""onclick"") = " & myButton.getAttribute("onclick")
End Sub 'subChangeButton1ValueAttribute
Sub Window_Onload()
Set myButton = document.createElement("input")
myButton.setAttribute "type","button"
myButton.setAttribute "id","Button1"
myButton.setAttribute "onclick","subButtonClickedMsg"
MsgBox "myButton.getAttribute(""onclick"") = " & myButton.getAttribute("onclick")
myButton.setAttribute "value","Button1"
document.getElementById("myBody").appendChild(myButton)
End Sub 'Window_Onload()
</script>
<body id=myBody>
<input type=button id=idButton2 value=Button2 onclick=subButtonClickedMsg />
<input type=button id=idButton3 value="Button3" onclick=subChangeButton1ValueAttribute />
</body>
</html>
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