CODEWITHSUNDEEP
user-interfacepowershellrichtextbox
kokotas
kokotas

Reputation: 121

Powershell GUI application, richtextbox doesn't update content when it's supposed to

I have a created a powershell gui application packaged as an .exe. The script calls other scripts and it informs the user through a read-only richtextbox when the called script has started and finished.

The problem is that it will only display the message indicating the start of the first script and then it will not show anything, until all the scripts have finished executing.

Here is my code:

foreach ($item in $checkedlistbox1.CheckedItems) {
        $richtextbox1.AppendText("Installing " + [IO.Path]::GetFileNameWithoutExtension($item) + "...")
        $richtextbox1.Update()
        $path = $scriptdir+ "\" + $item + ".exe"
        [System.Diagnostics.Process]::Start($path)
        $Process = (Get-Process | `
                        Where-Object { $_.ProcessName -ieq [IO.Path]::GetFileNameWithoutExtension($item) })
        $Process.WaitForExit() 
        $richtextbox1.AppendText("Done."+[char]13+[char]10)
        $richtextbox1.Update()
    }

I wonder what could be wrong here :(

Upvotes: 0

Views: 2313

Answers (1)

kokotas
kokotas

Reputation: 121

Well found a dirty way to fix this:

[System.Windows.Forms.Application]::DoEvents()

Just after appending the richtextbox.

Upvotes: 1

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