小编dbu*_*sev的帖子

我正在将应用程序从 C# 转换为 PowerShell。如何从 PowerShell 调用 LINQ？

    [Data.DataTable]$dt = New-Object System.Data.DataTable
    [Data.DataColumn]$column = New-Object System.Data.DataColumn "Id", ([int])
    $dt.Columns.Add($column)
    
    # add data
    [Data.DataRow]$row = $dt.NewRow() # 
    $row["Id"] = 1
    $dt.Rows.Add($row)
    $row = $dt.NewRow() # 
    $row["Id"] = 2
    $dt.Rows.Add($row)
    
    # LINQ in C#: int[] results = dt.AsEnumerable().Select(d => d.Field("Id")).ToArray();
    [int[]]$results = [Linq.Enumerable]::Select($dt,[Func[int,int]]{ $args[0]})
    # Error: Cannot find an overload for "Select" and the argument count: "2"
    Write-Host $results