PowerShell GUI中窗体内调用函数执行Get-AdfsRelyingPartyTrust无响应问题

• 命令拼写错误：Get-AdfsReylingPartyTrus存在拼写错误，正确命令名为Get-AdfsRelyingPartyTrust，拼写错误导致命令无法执行且无报错
• 对话框结果判断逻辑错误：OK按钮的DialogResult属性设置为数值1，对应枚举值[System.Windows.Forms.DialogResult]::OK，但代码中使用字符串"OK"做判断，两者不相等导致执行分支永远不会触发
• 执行结果未显式输出：函数内命令执行的返回值默认作为函数返回值，在按钮点击事件中调用时不会直接打印到控制台，需要主动指定输出

function single_rpt{    
    $RPTForm                        = New-Object System.Windows.Forms.Form
    $RPTForm.ClientSize             = '400,200'
    $RPTForm.Text                   = "Choose"
    $RPTForm.BackColor              = "#b2b2b2"
    $RPTForm.AutoSize               = $false
    $RPTForm.StartPosition          = 'CenterScreen'
    $RPTForm.ControlBox             = $true

    $rptButton                             = New-Object System.Windows.Forms.Button
    $rptButton.BackColor                   = "#ffffff"
    $rptButton.Text                        = "OK"
    $rptButton.Width                       = 90
    $rptButton.Height                      = 30
    $rptButton.Location                    = New-Object System.Drawing.Point(20,125)
    $rptButton.Font                        = 'Microsoft Sans Serif,10'
    $rptButton.ForeColor                   = "#000000"
    $rptButton.UseVisualStyleBackColor     = $true
    $rptButton.DialogResult                = [System.Windows.Forms.DialogResult]::OK
                                            
    # Test List Box
    $listBox                        = New-Object System.Windows.Forms.ListBox
    $listBox.Location               = New-Object System.Drawing.Point(20,50)
    $listBox.Size                   = New-Object System.Drawing.Size(350,200)
    $listBox.Height                 = 80
                                            
    $RPTForm.Controls.AddRange(@($listBox,$rptButton))
    
    $listboxArray = @()
    $ADFS_RPTS = Get-AdfsRelyingPartyTrust
    Foreach($rpt in $ADFS_RPTS)
    {
       $listboxArray += $rpt.Name
    }

    $listBox.Items.AddRange($listboxArray)
    [void]$RPTForm.ShowDialog()

                                      
    if($RPTForm.DialogResult -eq [System.Windows.Forms.DialogResult]::OK)
    {
        $selectedRPT = $listBox.SelectedItem.ToString()
        # 执行正确命令并输出结果到控制台
        Get-AdfsRelyingPartyTrust -Name $selectedRPT | Out-Host
    }
}


# Init PowerShell Gui
Add-Type -AssemblyName System.Windows.Forms

# Create Form with size, title and background color, etc.
$TESTForm                        = New-Object System.Windows.Forms.Form
$TESTForm.ClientSize             = '250,300'
$TESTForm.Text                   = "TEST"
$TESTForm.BackColor              = "#ffffff"
$TESTForm.AutoSize               = $false
$TESTForm.StartPosition          = 'CenterScreen'
$TESTForm.ControlBox             = $true

$RPTSingle                             = New-Object System.Windows.Forms.Button
$RPTSingle.BackColor                   = "#ffffff"
$RPTSingle.Text                        = "RPTSingle"
$RPTSingle.Width                       = 90
$RPTSingle.Height                      = 30
$RPTSingle.Location                    = New-Object System.Drawing.Point(75,125)
$RPTSingle.Font                        = 'Microsoft Sans Serif,10'
$RPTSingle.ForeColor                   = "#000000"
$RPTSingle.UseVisualStyleBackColor     = $true

$RPTSingle.Add_Click({single_rpt})

# Add a Cancel Button
$CancelButton                             = New-Object System.Windows.Forms.Button
$CancelButton.BackColor                   = "#ffffff"
$CancelButton.Text                        = "Cancel"
$CancelButton.Width                       = 90
$CancelButton.Height                      = 30
$CancelButton.Location                    = New-Object System.Drawing.Point(75,250)
$CancelButton.Font                        = 'Microsoft Sans Serif,10'
$CancelButton.ForeColor                   = "#000000"
$CancelButton.UseVisualStyleBackColor     = $true
$CancelButton.DialogResult                = [System.Windows.Forms.DialogResult]::Cancel


$TESTForm.Controls.AddRange(@($RPTSingle,$CancelButton))
# Display the form
[void]$TESTForm.ShowDialog()

内容的提问来源于stack exchange，提问作者PSDude