System Object Powershell struggling to click button

Hello - I have the below script working OK. it creates an object and actions some things for IE.

all works in this script

 
"Starting Internet Explorer in Background"
$ie = New-Object -com InternetExplorer.Application
$ie.visible=$true
$uri = 'https://MYWEBSITEIP/ossim/session/login.php#analysis/alarms/alarms'
#$ie.FullScreen = $true
$ie.TheaterMode = $true
$ie.navigate("$uri")
"Bypassing SSL Certificate Error Page";
start-sleep -s 5;
$sslbypass=$ie.Document.getElementsByTagName("a") | where-object {$_.id -eq "overridelink"}
$sslbypass.click()

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but as soon as I try to click the logon button that's where my problems start... I have tried multiple ways to click it and it comes up with the error below the code. I know I only need to click login once but I tried C_login and F_login as these were the elements I could see on the webpage. tried other variants. but my error makes me thing its more than just the name wrong.

 
"Starting Internet Explorer in Background"
$ie = New-Object -com InternetExplorer.Application
$ie.visible=$true
$uri = 'https://MYWEBSITEIP/ossim/session/login.php#analysis/alarms/alarms'
#$ie.FullScreen = $true
$ie.TheaterMode = $true
$ie.navigate("$uri")
"Bypassing SSL Certificate Error Page";
start-sleep -s 5;
$sslbypass=$ie.Document.getElementsByTagName("a") | where-object {$_.id -eq "overridelink"}
$sslbypass.click()
$loginclick=($ie.document.getElementsByName("c_login") |select -first 1).click()
$loginclick=($ie.document.getElementsByName("f_login") |select -first 1).click()

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You cannot call a method on a null-valued expression.
At E:\KEEP\~Scripts\Get Internet Explorer and sign in.ps1:13 char:1
+ $loginclick=($ie.document.getElementsByName("c_login") |select -first ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (:) [], RuntimeException
+ FullyQualifiedErrorId : InvokeMethodOnNull

You cannot call a method on a null-valued expression.
At E:\KEEP\~Scripts\Get Internet Explorer and sign in.ps1:14 char:1
+ $loginclick=($ie.document.getElementsByName("f_login") |select -first ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (:) [], RuntimeException
+ FullyQualifiedErrorId : InvokeMethodOnNull

PowershellInternet Explorer (IE)

Last Comment

PeggieGreg

8/22/2022 - Mon

PeggieGreg

1/21/2020

ASKER

I have tried the following as well:

 
"Starting Internet Explorer in Background"
$ie = New-Object -com InternetExplorer.Application
$ie.visible=$true
$uri = 'https://172.16.4.25/ossim/session/login.php#analysis/alarms/alarms'
#$ie.FullScreen = $true
$ie.TheaterMode = $true
$ie.navigate("$uri")
"Bypassing SSL Certificate Error Page";
start-sleep -s 5;
$sslbypass=$ie.Document.getElementsByTagName("a") | where-object {$_.id -eq "overridelink"}
$sslbypass.click()
#$loginbutton=($ie.Document.getElementsByclassName("c_login") |select -first 1).click()
#$loginclick=($ie.document.getElementsByName("f_login") |select -first 1).click()
$Loginbutton=($ie.Document.getElementsByclassName("big button") | where-object {$_.class -eq "Login"})[0]
$Loginbutton.click()

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see the elements below.
button-element.PNG

oBdA

1/21/2020

Obviously can't test it, but try

$Loginbutton = $ie.Document.getElementByID("submit_button")

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PeggieGreg

1/21/2020

ASKER

Exception from HRESULT: 0x800A01B6
At line:1 char:1
+ $Loginbutton = $ie.Document.getElementByID("submit_button")
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : OperationStopped: (:) [], NotSupportedException
+ FullyQualifiedErrorId : System.NotSupportedException

this is the error I get. it is annoying.

if this helps at all full screen shot attached of elements. submit button looked good...

any other ideas?
Submit-Button.PNG

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ASKER CERTIFIED SOLUTION

oBdA

1/21/2020

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PeggieGreg

1/21/2020

ASKER

very helpful and worked perfectly.

how did you know it was: Document.IHTMLDocument3_getElementByID ?