How to catch UploadFileAsync error?

PowerShell Help
1 
$web = New-Object System.Net.WebClient
$web.UseDefaultCredentials = $True
$filename = Read-Host (“file path”)
$File = dir $filename
$TargetFolder = Read-Host (“SharePoint Doc lib URL,example http://sp13/Doc1”)
$TargetFile = $TargetFolder+”/”+$File.name
$web.UploadFileAsync($TargetFile,”PUT”,($File.fullname))
if ($? -eq $false) {$error[0]}

When asynchronizing, how to know an error has occurred?

2

UploadFileAsync should throw error if an problem occured.

btnw, please format your code when posting in this forum. It’ll make the code readable.

see this post for the instructions: https://powershell.org/forums/topic/read-me-before-posting-youll-be-glad-you-did/

3

Thanks for your reply.

$web = New-Object System.Net.WebClient
$web.UseDefaultCredentials = $True
$filename = "D:\Install\UlsViewer v6.0.rar"
$File = dir $filename
$TargetFolder = "http://sp16.athena.com/Doc11"
$TargetFile = $TargetFolder+"/"+$File.name

$web.UploadFileAsync($TargetFile,"PUT",($File.fullname))
#$web.UploadFile($TargetFile,"PUT",($File.fullname))
if ($? -eq $false) {$error[0]}

because http://sp16.athena.com/doc11 not exist ,so if use uploadfile will:

$web.UploadFile($TargetFile,"PUT",($File.fullname))
if ($? -eq $false) {$error[0]}

使用“3”个参数调用“UploadFile”时发生异常:“远程服务器返回错误: (409) 冲突。”
所在位置 D:\Script\upload test v1.0.ps1:10 字符: 1
+ $web.UploadFile($TargetFile,"PUT",($File.fullname))
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : WebException

but use UploadFileAsync ,no error to display

4

From documentation, it throws exception,but for some particular scenarios.