helpers/Convert-RetrievalMemberAccessExpression.ps1
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#Requires -Version 3.0 <# Convert-RetrievalMemberAccessExpression.ps1 Copyright (c) 2017 karamem0 This software is released under the MIT License. https://github.com/karamem0/SPClient/blob/master/LICENSE #> function Convert-RetrievalMemberAccessExpression { [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [string] $InputString, [Parameter(Mandatory = $true)] [System.Linq.Expressions.Expression] $Expression ) process { $Expr = $Expression $Type = $Expression.Type if ($InputString -ne '*') { $Splits = Split-RetrievalExpressionString -InputString $InputString -Separator '.' foreach ($Split in $Splits) { if (Test-GenericSubclassOf -InputType $Type -TestType 'Microsoft.SharePoint.Client.ClientObjectCollection`1') { $Expr = Convert-RetrievalIncludeExpression -InputString $Split -Expression $Expr } else { $Prop = $Type.GetProperty($Split) if ($Prop -eq $null) { throw "Cannot convert expression because '$($Type)' has no member named '$($Split)'." } $Expr = [System.Linq.Expressions.Expression]::Property($Expr, $Prop) $Type = $Prop.PropertyType } } } Write-Output $Expr } } |