Convert from PowerShell to C#

Question

The was a problem with Exchange in C#.

I need to convert this PowerShell command:

Get-MailboxDatabase -Status | Where-Object {$_.IsExcludedFromProvisioning -eq $false} | select Name,DatabaseSize | sort DatabaseSize

I tried the following code, but it gives an System.Management.Automation.CmdletInvocationException

PSCommand command1 = new PSCommand();
            command1.AddCommand("Get-MailboxDatabase");
            command1.AddParameter("Status");
            command1.AddCommand("Where-Object");
            command1.AddArgument("IsExcludedFromProvisioning");
            command1.AddParameter("eq", false);
            command1.AddCommand("select-object").AddParameter("Property", new string[] { "Name", "DatabaseSize" });
            command1.AddCommand("sort-object").AddParameter("Property", "DatabaseSize");
            PowershellExchange.Commands = command1;
            PowershellExchange.Runspace = RunspaceExchange;
            var tmp1 = PowershellExchange.Invoke();

Tell me, what could be the problem, or how can you alternatively rewrite the powershell command?

Edit

Inner Exception: The specified operator requires both the -Property parameter and the -Value parameter. Specify values ​​for both parameters and run the command again.

Answer 1

This may seem counter-intuitive, but in the following:

... |Where-Object Something -eq $SomeValue

-eq is a actually a switch parameter, and the verbose form of this would be:

... |Where-Object -Property:Something -Eq:$true -Value:$SomeValue

So, to re-create the Where-Object pipeline element without a filter scriptblock:

command1.AddCommand("Where-Object")
        .AddParameter("Property", "IsExcludedFromProvisioning")
        .AddParameter("Eq", true)
        .AddParameter("Value", false);

Answer 2

Thanks @Jeroen Mostert for help

Final code looks like

PSCommand command1 = new PSCommand();
                command1.AddScript("Get-MailboxDatabase -Status | Where-Object {$_.IsExcludedFromProvisioning -eq $false} | select Name,DatabaseSize | sort DatabaseSize");
                PowershellExchange.Commands = command1;
                PowershellExchange.Runspace = RunspaceExchange;
                var tmp1 = PowershellExchange.Invoke();