Powershell cannot find type [System.Windows.Forms.KeyEventHandler]
This might be a pretty simple question, but I'm completely lost and looking for an answer didn't help.
I have powershell code to display a simple GUI with TextBoxes. Some text boxes allow the user to press Enter to trigger the Button_Click code. When I try to run the PS1 script, I get errors saying the following:
Unable to find type [System.Windows.Forms.KeyEventHandler].
Make sure that the assembly that contains this type is loaded.At C:\Scripts\GUI-Testing.ps1:161 char:1
$TestVar=[System.Windows.Forms.KeyEventHandler]
CategoryInfo : InvalidOperation: (System.Windows.Forms.KeyEventHandler:TypeName)
FullyQualifiedErrorId : TypeNotFound
The weird part is, if I close the GUI and then run the script, I don't get the error Unable to find type
and hitting Enter works as desired.
I think I had the answer, I tried using [void][reflection.assembly]::Load('System.Windows.Forms.KeyEventHandler')
which give this errorException calling "Load" with "1" argument(s): "Could not load file or assembly 'System.Windows.Forms.KeyEventHandler' or one of its dependencies. [FileNotFoundException]
source to share
Make sure you download the following assemblies at the top of your script:
[void] [System.Reflection.Assembly]::LoadWithPartialName("System.Drawing")
[void] [System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms")
If it still doesn't work, you can do something like:
$objForm.KeyPreview = $True
$objForm.Add_KeyDown({
if ($_.KeyCode -eq "Enter")
{
#Write Code Here
}
})
source to share