Appendix-Thread-Evaluate-Range-(-Codes-for-other-Threads-HTML-Tables-etc-)

[DocAElstein]

In support of the forum post:

NOT POSTED YET – DRAFT COPY

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Hi
I am new to PowerShell script since a few weeks

I hit my first major coding problem, I have got over some smaller ones.

I have a GUI with lots of buttons on it. Each Button has some various things behind it. Some do some quite major things to the computer, such as registry changes, others download stuff. With one exception all is working as it should**.

Problem Summary

This coding does what it should. I checked it on a few computers with different Windows 10 versions. It checks for installed winget on the computer, and if not there attempts to download it. ( That download might not work for other reasons, but that is a separate issue which I am not concerned with here – as it happens I have it installed on all my computers )
On all my current computers that have winget, the message comes up saying 'winget already installed', and the coding moves on. All is well

 Write-Host "Checking winget..."  
if (Test-Path ~\AppData\Local\Microsoft\WindowsApps\winget.exe){  # Check if winget is installed
    'Winget Already Installed'
}  
else{
    # Installing winget from the Microsoft Store
	Write-Host "Winget not found, installing it now."
    $ResultText.text = "`r`n" +"`r`n" + "Installing Winget... Please Wait"
	Start-Process "ms-appinstaller:?source=https://aka.ms/getwinget"   # If I paste that link in Browser URL I get this offered as if I hit the download button somewhere     Microsoft.DesktopAppInstaller_8wekyb3d8bbwe.msixbundle
	$nid = (Get-Process AppInstaller).Id
	Wait-Process -Id $nid
	Write-Host Winget Installed
    $ResultText.text = "`r`n" +"`r`n" + "Winget Installed - Ready for Next Task"
}   #  })

I put that same coding behind a button on a GUI. It seems to work initially, the GUI comes up,

, and on clicking the button it appears initially to start OK, , but on the same computers, the coding always hangs at
"checking winget…"

 # 
Add-Type -AssemblyName System.Windows.Forms
# Create a new form
$Form = New-Object system.Windows.Forms.Form
# Define the size
$Form.ClientSize         = '800, 600'

# Range to put button in
$Panel10 = New-Object system.Windows.Forms.Panel ; $Panel10.height = 50 ; $Panel10.width = 250 ; $Panel10.location = New-Object System.Drawing.Point(1, 25)

# function to create sinple botton
function Create-Button {param([string]$Text, [int]$FntSz, [int]$Width, [int]$Height, [int]$ClmX, [int]$RwY)#As Object   ' This function allows us to make a buttons in one line. (Those later single lines do not make the button appear)                                                                       
 $Btn = New-Object System.Windows.Forms.Button                                                                                           #                                                                                               
 $Btn.Text = $Text                                                                             #                                                           
 $Btn.Width = $Width   ;  $Btn.Height = $Height                                                                           #                                                                     
                                                                     #                                                                                    
 $Btn.Location = New-Object System.Drawing.Point($ClmX, $RwY)                                                        #                                                                              
 $Btn.Font = New-Object System.Drawing.Font('Arial', $FntSz)   #   ('Microsoft Sans Serif', 9)
                                                                       #                                                                                   
 return $Btn   }                                                      #                                                                              
# Make button
$GetWinGet = Create-Button -Text "winget" -FntSz 9 -Width 117 -Height 21 -ClmX 3 -RwY 1                                                                                                            



$GetWinGet.Add_Click({                                                                                      
Write-Host "Checking winget..."     # PROBLEM!!!!   This wont work in a button - it freezes here?                                                                       
if (Test-Path ~\AppData\Local\Microsoft\WindowsApps\winget.exe){  # Check if winget is installed            
 'Winget Already Installed'                                                                                 
}                                                                                                           
else{                                                                                                        
 # Installing winget from the Microsoft Store
Write-Host "Winget not found, installing it now."                                                            
 $ResultText.text = "`r`n" +"`r`n" + "Installing Winget... Please Wait"                                      
Start-Process "ms-appinstaller:?source=https://aka.ms/getwinget"   # If I paste that link in Browser URL I get this offered as if I hit the download button somewhere     Microsoft.DesktopAppInstaller_8wekyb3d8bbwe.msixbundle          
$nid = (Get-Process AppInstaller).Id                                                                         
Wait-Process -Id $nid                                                                                        
Write-Host Winget Installed                                                                                  
$ResultText.text = "`r`n" +"`r`n" + "Winget Installed - Ready for Next Task"
}     })                                                                                                     


# Add Button to range
$Panel10.controls.AddRange(@($GetWinGet)) 

# Add ranbge to Form
$Form.controls.AddRange(@($Panel10))

# Display the form
[void]$Form.ShowDialog()

On this same GUI I can put lots of other buttons, all doing different things, and they always do what they should**

What am I missing?


Alan