Powershell路径不采用字符串变量

Question

我使用以下代码通过Windows窗体“浏览”功能选择文件夹，然后将该路径传递到gci cmdlet

cls

Function Get-Directory($initialDirectory)
{   
 [System.Reflection.Assembly]::LoadWithPartialName("System.windows.forms") |
 Out-Null

 $OpenfolderDialog = New-Object System.Windows.Forms.FolderBrowserDialog
 $OpenfolderDialog.RootFolder = $initialDirectory
 $OpenfolderDialog.ShowDialog()| Out-Null
 $StartDir = $OpenfolderDialog.SelectedPath 
 Return $StartDir | Out-String
 } 

 $myDir = Get-Directory -initialDirectory "Desktop"

 $Child = gci -path $mydir -r -Filter *.jpg 

 Foreach ($item in $Child) {Move-Item -path $item.pspath -Destination $myDir -Force}

但我得到了这些错误：

在 C：\测试\合并图片2.ps1：17 字符：13 $Child = gci

Move-Item:无法将参数绑定到参数“Path ”,因为它为空。在C:\ Test \ Combine pics 2 . PS1:19 char:43 Foreach($ Item in $ Child){ Move-Item-path

$myDir变量的类型为字符串，为什么它不传递给 -path 参数。

Answer 1

我在< code>$mydir值的末尾得到了一个换行符和回车符，所以尝试用类似这样的东西进行修整，看看这是否是您的问题:

$Child = gci -path $mydir.Trim("`r`n") -r -Filter *.jpg

更新：更好的是，只需丢失函数中的“Out-String”：

Return $StartDir

Answer 2

试试这个：

Function Get-Directory($initialDirectory)
{   
    [System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms") | Out-Null

    $OpenfolderDialog = New-Object System.Windows.Forms.FolderBrowserDialog
    $OpenfolderDialog.RootFolder = $initialDirectory
    if ($OpenfolderDialog.ShowDialog() -eq "OK") {
        #Continue only if a folder was selected
        $OpenfolderDialog.SelectedPath
    }
} 

$myDir = Get-Directory -initialDirectory "Desktop"

#Continue only if a folder was selected
if($myDir) {
    $Child = Get-ChildItem -path $mydir -Recurse -Filter *.jpg
    Foreach ($item in $Child) {
        Move-Item -path $item.pspath -Destination $myDir -Force
    }
}

我用一些if测试来清理它，这样当人们取消对话框时它不会返回错误。不需要＜code＞输出字符串

Answer 3

如果用户取消了对话框怎么办？尝试一下：

Function Get-Directory($initialDirectory)
{   
     [System.Reflection.Assembly]::LoadWithPartialName("System.windows.forms") | Out-Null

     $OpenfolderDialog = New-Object System.Windows.Forms.FolderBrowserDialog
     $OpenfolderDialog.RootFolder = $initialDirectory
     $result = $OpenfolderDialog.ShowDialog()

     if($result -eq 'ok')
     {
         $OpenfolderDialog.SelectedPath
     }
     else
     {
        "canceled"
     }
 } 


$mydir = Get-Directory -initialDirectory Desktop

if($mydir -ne 'canceled')
{
    gci -path $mydir
}