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Validate that HTA text input boxes aren't blank on submission

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bdwilcox

bdwilcox

Technical User
Jul 7, 2022
13
US
I was wondering if anyone has either a VBScript or JavaScript subroutine that will work in a simple HTA to make sure neither of the two mandatory text boxes [Machine Name (CompID) & Program Name (ProgID)] are blank when the user presses the Click to Find the Program button? I would like it to pop up a warning saying blank fields aren't allowed then just go back to the HTA so they can correct and re-submit (but without displaying the scripting error pop-up I get now).

After a bunch of Googling, I've found some JavaScript validation routines but they all seem to use CSS 2 or 3 form controls that I believe HTA doesn't support (from what I understand, which definitely could be totally wrong). I apologize for my sloppy HTA but this is what I could hack together at this point. Any help would be greatly appreciated.

Code: 
<!DOCTYPE html>

<html>

<head>
<title>Program Finder</title>

       <script language="VBScript">
           Option Explicit
           Dim width, height
           width  = 900 -1
           height = 500 -1
           self.ResizeTo width, height
           self.MoveTo (screen.availWidth - width)/2, (screen.availHeight - height)/2
      </script>

<HTA:APPLICATION
     APPLICATIONNAME="Product Finder"
     Caption="Yes"
     MaximizeButton="No"
     MinimizeButton="No"
     SCROLL="No"
     SINGLEINSTANCE="yes"
     WINDOWSTATE="Normal"
     BORDER="Normal"
     Icon=C:\Windows\System32\Magnify.exe
>

</head>

<script language="VBScript">
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set Ws = CreateObject("WScript.Shell")
sub FindProg
MySoftware = ProgID.value
strComputer = CompID.value
Set objWMIService = GetObject("winmgmts:" _
  & "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")
Set colSoftware = objWMIService.ExecQuery _
  ("Select * from Win32_Product where Name Like " & CommandLineLike(MySoftware))

For Each objSoftware in colSoftware
  x=MsgBox ("Caption" & vbtab & vbtab & objSoftware.Caption & vbCrLf & _
  "Description:" & vbtab & objSoftware.Description & vbCrLf & _
  "Identifying #:" & vbtab & objSoftware.IdentifyingNumber & vbCrLf & _
  "Install Date:" & vbtab & vbtab & objSoftware.InstallDate2 & vbCrLf & _
  "Install Location:" & vbtab & objSoftware.InstallLocation & vbCrLf & _
  "Install State:" & vbtab & objSoftware.InstallState & vbCrLf & _
  "Name:" & vbtab & vbtab & objSoftware.Name & vbCrLf & _
  "Package Cache:" & vbtab & objSoftware.PackageCache & vbCrLf & _
  "SKU Number:" & vbtab & objSoftware.SKUNumber & vbCrLf & _
  "Vendor:" & vbtab & vbtab & objSoftware.Vendor & vbCrLf & _
  "Version:" & vbtab & vbtab & objSoftware.Version)
Next

End Sub

Sub CloseBtn_OnClick
    Window.Close
End Sub

Function CommandLineLike(MySoftware)
    MySoftware = Replace(MySoftware, "\", "\\")
    CommandLineLike = "'%" & MySoftware & "%'"
End Function

</script>

<body>
<font face=Verdana>
<text>Find out if a program is installed on a remote computer</text> <br> <br>
<text>Machine Name or IP Address:</text>
<input type="text" name="CompID" size="30"> <br> <br>
<text>Partial Name of a Program:&nbsp;&nbsp;&nbsp<text>
<input type="text" name="ProgID" size="30"> <br> <br>
<text>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp</text>
<button onclick="FindProg">Click to Find the Program</button>
<Input Type = "Button" Name = "CloseBtn" VALUE = "Close Window">
</body>
 
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I actually figured out a VBSCript hack to implement such a check:

Code: 
<!DOCTYPE html>

<html>

<head>
<title>Program Finder v.1a</title>

       <script language="VBScript">
           Option Explicit
           Dim width, height
           width  = 900 -1
           height = 500 -1
           self.ResizeTo width, height
           self.MoveTo (screen.availWidth - width)/2, (screen.availHeight - height)/2
      </script>

<HTA:APPLICATION
     APPLICATIONNAME="Program Finder"
     Caption="Yes"
     MaximizeButton="No"
     MinimizeButton="No"
     SCROLL="No"
     SINGLEINSTANCE="yes"
     WINDOWSTATE="Normal"
     BORDER="Normal"
     Icon=C:\Windows\System32\Magnify.exe
>

</head>

<script language="VBScript">
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set Ws = CreateObject("WScript.Shell")
sub FindProg
MySoftware = ProgID.value
strComputer = CompID.value
Set objWMIService = GetObject("winmgmts:" _
  & "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")
Set colSoftware = objWMIService.ExecQuery _
  ("Select * from Win32_Product where Name Like " & CommandLineLike(MySoftware))

For Each objSoftware in colSoftware
  x=MsgBox ("Caption" & vbtab & vbtab & objSoftware.Caption & vbCrLf & _
  "Description:" & vbtab & objSoftware.Description & vbCrLf & _
  "Identifying #:" & vbtab & objSoftware.IdentifyingNumber & vbCrLf & _
  "Install Date:" & vbtab & vbtab & objSoftware.InstallDate2 & vbCrLf & _
  "Install Location:" & vbtab & objSoftware.InstallLocation & vbCrLf & _
  "Install State:" & vbtab & objSoftware.InstallState & vbCrLf & _
  "Name:" & vbtab & vbtab & objSoftware.Name & vbCrLf & _
  "Package Cache:" & vbtab & objSoftware.PackageCache & vbCrLf & _
  "SKU Number:" & vbtab & objSoftware.SKUNumber & vbCrLf & _
  "Vendor:" & vbtab & vbtab & objSoftware.Vendor & vbCrLf & _
  "Version:" & vbtab & vbtab & objSoftware.Version)
Next

End Sub

Sub CloseBtn_OnClick
    Window.Close
End Sub

Function CommandLineLike(MySoftware)
    MySoftware = Replace(MySoftware, "\", "\\")
    CommandLineLike = "'%" & MySoftware & "%'"
End Function

Sub CheckforBlanks
if CompID.value = "" then
CompIDValue = 0
Else
CompIDValue = 1
end if
if ProgID.value = "" then
ProgIDValue = 0
Else
ProgIDValue = 1
end if
CombinedValue = CompIDValue + ProgIDValue
if CombinedValue < 2 then
ErrorPopup=MsgBox ("Fields can't be blank!  Please press the OK button, fill out both fields then try again.",vbExclamation,"Blank Fields Found!")
Else
FindProg
end if
End Sub

</script>

<body>
<font face=Verdana>
<text>Find out if a program is installed on a remote computer</text> <br> <br>
<text>Machine Name or IP Address:</text>
<input type="text" name="CompID" size="30"> <br> <br>
<text>Partial Name of a Program:&nbsp;&nbsp;&nbsp<text>
<input type="text" name="ProgID" size="30"> <br> <br>
<text>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp</text>
<button onclick="CheckforBlanks">Click to Find the Program</button>
<Input Type = "Button" Name = "CloseBtn" VALUE = "Close Window">
</body>
 
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