Now, as our example stands we are catching any errors that occur during the file read and dealing with all of them in the same way. You can however catch specific exceptions and deal with them differently, but – and it’s a big but – only if the original error is terminating. Becaus...
try{ NonsenseString } catch {"An error occurred."} catch关键字必须紧跟try块或其他catch块。 PowerShell 不会将“NonsenseString”识别为 cmdlet 或其他项。 运行此脚本会产生以下结果: PowerShell An error occurred. 当脚本遇到“NonsenseString”时,会导致终止错误。catch块通过在块内运行语句列表来处理错误。
The following function queries all commands on your system and returns the number with specific parameter names. PowerShell Copy function Get-MrParameterCount { param ( [string[]]$ParameterName ) foreach ($Parameter in $ParameterName) { $Results = Get-Command -ParameterName $Parameter -ErrorAc...
DNS Problem :A security package specific error occrred DNS Reverse Lookup Zones Do Loops & Multiple Conditions - Please Help! Do not continue until a file exists in powershell Do-While loop until input is null Does anyone know how to AutoFit Columns starting from a particular Row in Excel?
that handle specific error conditions with specific error handlers. A user should be able to use the error identifier to identify the error and its source. Error identifiers also enable reporting for specific error conditions from existing exceptions so that new exception subclasses are not requi...
Script terminated with a specific error message Conclusion In this article, you’ve learned about errors in PowerShell, its properties, and how you can determine an error’s specific type. You’ve also learned the difference between how the$ErrorActionPreferencevariable and the PowerShellErrorAction...
application with Visual Studio®, all controls automatically receive IDs. If you are writing test automation for a Web application where the elements do not have IDs, you can also use the getElementsByTagName method to return a collection of elements and then access a specific element by ...
(Get-Process). BecauseInputObjectcan't return individual properties from an array or collection of objects, we recommend that if you useForEach-Objectto perform operations on a collection of objects for those objects that have specific values in defined properties, you useForEach-Objectin the ...
$ErrorActionPreference Try, Catch, Finallyis similar to a Trap block. Trap blocks generally catch any errors in the scope of the entire script or function. The beauty ofTry, Catch, Finallyis that it is like a localized Trap for a specific block of commands. This gives you gre...
Microsoft Scripting Guy, Ed Wilson, is here. Today I want to present a video I made about structured error handling, in specific, about terminating errors. NoteFor more information, refer toError Handling: Two Types of Errors. Here is the video: ...