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Conversion of [datetime] property in class does not work #20401

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Conversion of [datetime] property in class does not work#20401
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Issue-BugIssue has been identified as a bug in the productIssue has been identified as a bug in the productResolution-No ActivityIssue has had no activity for 6 months or moreIssue has had no activity for 6 months or moreUp-for-GrabsUp-for-grabs issues are not high priorities, and may be opportunities for external contributorsUp-for-grabs issues are not high priorities, and may be opportunities for external contributorsWG-Enginecore PowerShell engine, interpreter, and runtimecore PowerShell engine, interpreter, and runtime
@ghost

Description

@ghost
ghost
opened on Sep 29, 2023

Prerequisites

Steps to reproduce

I implemented this class in file "statistics.ps1" and want to use the automatic cast/conversion utilities of PowerShell:

class Statistics {
	[ValidateNotNullOrEmpty()]
	[nullable[datetime]] $LastDownload

	[ValidateRange("Positive")]
	[int] $Downloads

	[ValidateNotNull()]
	[string] $DownloadedBy = "n/a"
}

Expected behavior

PS> . .\statistics.ps1
PS> $object = [pscustomobject]@{ LastDownload = (Get-Date); Downloads = 123; DownloadedBy = "Jesus!" }
PS> [StatisticsExp]$object

LastDownload        Downloads DownloadedBy
------------        --------- ------------
29.09.2023 15:04:40       123 Jesus!

Actual behavior

PS> . .\statistics.ps1
PS> $object = [pscustomobject]@{ LastDownload = (Get-Date); Downloads = 123; DownloadedBy = "Jesus!" }
PS> [StatisticsExp]$object
InvalidArgument: Cannot convert value "@{LastDownload=29.09.2023 15:04:40; Downloads=123; DownloadedBy=Jesus!}" to type "Statistics". Error: "Cannot convert value "29.09.2023 15:04:40" to type "System.Nullable`1[System.DateTime]". Error: "Cannot process argument because the value of argument "obj" is null. Change the value of argument "obj" to a non-null value.""

Error details

PS> Get-Error

Exception             : 
    Type           : System.Management.Automation.RuntimeException
    ErrorRecord    : 
        Exception             : 
            Type    : System.Management.Automation.ParentContainsErrorRecordException
            Message : Cannot convert value "@{LastDownload=29.09.2023 15:04:40; Downloads=123; DownloadedBy=Jesus!}" to type "Statistics". Error: "Cannot convert value "29.09.2023 15:04:40" to type "System.Nullable`1[System.DateTime]". Error: "Cannot process argument 
because the value of argument "obj" is null. Change the value of argument "obj" to a non-null value.""
            HResult : -2146233087
        CategoryInfo          : InvalidArgument: (:) [], ParentContainsErrorRecordException
        FullyQualifiedErrorId : InvalidCastConstructorException
        InvocationInfo        : 
            ScriptLineNumber : 1
            OffsetInLine     : 1
            HistoryId        : -1
            Line             : [Statistics]$object
            PositionMessage  : At line:1 char:1
                               + [Statistics]$object
                               + ~~~~~~~~~~~~~~~~~~~
            CommandOrigin    : Internal
        ScriptStackTrace      : at <ScriptBlock>, <No file>: line 1
    Message        : Cannot convert value "@{LastDownload=29.09.2023 15:04:40; Downloads=123; DownloadedBy=Jesus!}" to type "Statistics". Error: "Cannot convert value "29.09.2023 15:04:40" to type "System.Nullable`1[System.DateTime]". Error: "Cannot process argument  
because the value of argument "obj" is null. Change the value of argument "obj" to a non-null value.""
    InnerException : 
        Type           : System.Management.Automation.PSInvalidCastException
        ErrorRecord    : 
            Exception             : 
                Type    : System.Management.Automation.ParentContainsErrorRecordException
                Message : Cannot convert value "@{LastDownload=29.09.2023 15:04:40; Downloads=123; DownloadedBy=Jesus!}" to type "Statistics". Error: "Cannot convert value "29.09.2023 15:04:40" to type "System.Nullable`1[System.DateTime]". Error: "Cannot process      
argument because the value of argument "obj" is null. Change the value of argument "obj" to a non-null value.""
                HResult : -2146233087
            CategoryInfo          : InvalidArgument: (:) [], ParentContainsErrorRecordException
            FullyQualifiedErrorId : InvalidCastConstructorException
            InvocationInfo        : 
                ScriptLineNumber : 1
                OffsetInLine     : 1
                HistoryId        : -1
                Line             : [Statistics]$object
                PositionMessage  : At line:1 char:1
                                   + [Statistics]$object
                                   + ~~~~~~~~~~~~~~~~~~~
                CommandOrigin    : Internal
            ScriptStackTrace      : at <ScriptBlock>, <No file>: line 1
        TargetSite     : 
            Name          : Convert
            DeclaringType : System.Management.Automation.LanguagePrimitives+ConvertViaNoArgumentConstructor, System.Management.Automation, Version=7.3.7.500, Culture=neutral, PublicKeyToken=31bf3856ad364e35
            MemberType    : Method
            Module        : System.Management.Automation.dll
        Message        : Cannot convert value "@{LastDownload=29.09.2023 15:04:40; Downloads=123; DownloadedBy=Jesus!}" to type "Statistics". Error: "Cannot convert value "29.09.2023 15:04:40" to type "System.Nullable`1[System.DateTime]". Error: "Cannot process       
argument because the value of argument "obj" is null. Change the value of argument "obj" to a non-null value.""
        Data           : System.Collections.ListDictionaryInternal
        InnerException : 
            Type           : System.Management.Automation.PSInvalidCastException
            ErrorRecord    : 
                Exception             : 
                    Type    : System.Management.Automation.ParentContainsErrorRecordException
                    Message : Cannot convert value "29.09.2023 15:04:40" to type "System.Nullable`1[System.DateTime]". Error: "Cannot process argument because the value of argument "obj" is null. Change the value of argument "obj" to a non-null value."
                    HResult : -2146233087
                CategoryInfo          : InvalidArgument: (:) [], ParentContainsErrorRecordException
                FullyQualifiedErrorId : InvalidCastConstructorException
            TargetSite     : 
                Name          : Convert
                DeclaringType : System.Management.Automation.LanguagePrimitives+ConvertViaNoArgumentConstructor, System.Management.Automation, Version=7.3.7.500, Culture=neutral, PublicKeyToken=31bf3856ad364e35
                MemberType    : Method
                Module        : System.Management.Automation.dll
            Message        : Cannot convert value "29.09.2023 15:04:40" to type "System.Nullable`1[System.DateTime]". Error: "Cannot process argument because the value of argument "obj" is null. Change the value of argument "obj" to a non-null value."
            InnerException : 
                Type        : System.Management.Automation.PSArgumentNullException
                ErrorRecord : 
                    Exception             : 
                        Type    : System.Management.Automation.ParentContainsErrorRecordException
                        Message : Cannot process argument because the value of argument "obj" is null. Change the value of argument "obj" to a non-null value.
                        HResult : -2146233087
                    CategoryInfo          : InvalidArgument: (:) [], ParentContainsErrorRecordException
                    FullyQualifiedErrorId : ArgumentNull
                Message     : Cannot process argument because the value of argument "obj" is null. Change the value of argument "obj" to a non-null value.
                ParamName   : obj
                TargetSite  : 
                    Name          : AsPSObject
                    DeclaringType : psobject
                    MemberType    : Method
                    Module        : System.Management.Automation.dll
                Source      : System.Management.Automation
                HResult     : -2147467261
                StackTrace  : 
   at System.Management.Automation.PSObject.AsPSObject(Object obj, Boolean storeTypeNameAndInstanceMembersLocally)
   at System.Management.Automation.LanguagePrimitives.SetObjectProperties(Object o, IDictionary properties, Type resultType, MemberNotFoundError memberNotFoundErrorAction, MemberSetValueError memberSetValueErrorAction, Boolean enableMethodCall, IFormatProvider
formatProvider, Boolean recursion, Boolean ignoreUnknownMembers)
   at System.Management.Automation.LanguagePrimitives.ConvertViaNoArgumentConstructor.Convert(Object valueToConvert, Type resultType, Boolean recursion, PSObject originalValueToConvert, IFormatProvider formatProvider, TypeTable backupTable, Boolean ignoreUnknownMembers) 
            Source         : System.Management.Automation
            HResult        : -2147467262
            StackTrace     : 
   at System.Management.Automation.LanguagePrimitives.ConvertViaNoArgumentConstructor.Convert(Object valueToConvert, Type resultType, Boolean recursion, PSObject originalValueToConvert, IFormatProvider formatProvider, TypeTable backupTable, Boolean ignoreUnknownMembers) 
   at System.Management.Automation.LanguagePrimitives.SetObjectProperties(Object o, IDictionary properties, Type resultType, MemberNotFoundError memberNotFoundErrorAction, MemberSetValueError memberSetValueErrorAction, Boolean enableMethodCall, IFormatProvider
formatProvider, Boolean recursion, Boolean ignoreUnknownMembers)
   at System.Management.Automation.LanguagePrimitives.SetObjectProperties(Object o, PSObject psObject, Type resultType, MemberNotFoundError memberNotFoundErrorAction, MemberSetValueError memberSetValueErrorAction, IFormatProvider formatProvider, Boolean recursion,       
Boolean ignoreUnknownMembers)
   at System.Management.Automation.LanguagePrimitives.ConvertViaNoArgumentConstructor.Convert(Object valueToConvert, Type resultType, Boolean recursion, PSObject originalValueToConvert, IFormatProvider formatProvider, TypeTable backupTable, Boolean ignoreUnknownMembers) 
        Source         : System.Management.Automation
        HResult        : -2147467262
        StackTrace     : 
   at System.Management.Automation.LanguagePrimitives.ConvertViaNoArgumentConstructor.Convert(Object valueToConvert, Type resultType, Boolean recursion, PSObject originalValueToConvert, IFormatProvider formatProvider, TypeTable backupTable, Boolean ignoreUnknownMembers) 
   at System.Management.Automation.LanguagePrimitives.ConvertViaNoArgumentConstructor.Convert(Object valueToConvert, Type resultType, Boolean recursion, PSObject originalValueToConvert, IFormatProvider formatProvider, TypeTable backupTable)
   at CallSite.Target(Closure, CallSite, Object)
   at System.Dynamic.UpdateDelegates.UpdateAndExecute1[T0,TRet](CallSite site, T0 arg0)
   at System.Management.Automation.Interpreter.DynamicInstruction`2.Run(InterpretedFrame frame)
   at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame frame)
    HResult        : -2146233087
CategoryInfo          : InvalidArgument: (:) [], RuntimeException
FullyQualifiedErrorId : InvalidCastConstructorException
InvocationInfo        : 
    ScriptLineNumber : 1
    OffsetInLine     : 1
    HistoryId        : -1
    Line             : [Statistics]$object
    PositionMessage  : At line:1 char:1
                       + [Statistics]$object
                       + ~~~~~~~~~~~~~~~~~~~
    CommandOrigin    : Internal
ScriptStackTrace      : at <ScriptBlock>, <No file>: line 1

Environment data

PS> $PSVersionTable

Name                           Value
----                           -----
PSVersion                      7.3.7
PSEdition                      Core
GitCommitId                    7.3.7
OS                             Microsoft Windows 10.0.19044
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

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    Issue-BugIssue has been identified as a bug in the productIssue has been identified as a bug in the productResolution-No ActivityIssue has had no activity for 6 months or moreIssue has had no activity for 6 months or moreUp-for-GrabsUp-for-grabs issues are not high priorities, and may be opportunities for external contributorsUp-for-grabs issues are not high priorities, and may be opportunities for external contributorsWG-Enginecore PowerShell engine, interpreter, and runtimecore PowerShell engine, interpreter, and runtime

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