c# - How to implement using statement in powershell?

Question

How can I write using in power shell ?

This is working example in C#

using (var conn = new SqlConnection(connString))
{
    Console.WriteLine("InUsing");
}

I need same in Powershell (not working):

Using-Object ($conn = New-Object System.Data.SqlClient.SqlConnection($connString)) {

    Write-Warning -Message 'In Using';          
}

It is working without using:

$conn = New-Object System.Data.SqlClient.SqlConnection($connString)

Thank you for help.

Answer 1

Here is a solution from Using-Object: PowerShell version of C#’s “using” statement which works by calling .Dispose() in a finally block:

function Using-Object
{
    [CmdletBinding()]
    param (
        [Parameter(Mandatory = $true)]
        [AllowEmptyString()]
        [AllowEmptyCollection()]
        [AllowNull()]
        [Object]
        $InputObject,

        [Parameter(Mandatory = $true)]
        [scriptblock]
        $ScriptBlock
    )

    try
    {
        . $ScriptBlock
    }
    finally
    {
        if ($null -ne $InputObject -and $InputObject -is [System.IDisposable])
        {
            $InputObject.Dispose()
        }
    }
}

And here's how to use it:

Using-Object ($streamWriter = New-Object System.IO.StreamWriter("$pwd
ewfile.txt")) {
    $streamWriter.WriteLine('Line written inside Using block.')
}