In a Cmdlet, how can I detect if the Debug flag is set?

Question

I\'m writing a PowerShell Cmdlet and using WriteDebug, but I want to write an object which requires an extra API call, and I\'d rather not make that call when debugging is t

Answer 1

To access the Debug flag from C# you should be able to do essentially the same thing as mjolinor suggests:

if (this.MyInvocation.BoundParameters.ContainsKey("Debug"))
{
    ... do something ...
}

However, note that you can specify the debug parameter with a value of false:

MyCmdlet -Debug:$false

To handle this case, you probably want to add something like this (from within the PSCmdlet):

bool debug = MyInvocation.BoundParameters.ContainsKey("Debug") &&
             ((SwitchParameter)MyInvocation.BoundParameters["Debug"]).ToBool();

In C# BoundParameters is a dictionary, so you could also use TryGetValue(), but note that the value of a switch (like Debug) is a SwitchParameter not a bool.

for further information see the following:

• PSCmdlet.MyInvocation: http://msdn.microsoft.com/en-us/library/system.management.automation.pscmdlet.myinvocation(v=vs.85).aspx
• BoundParameters: http://msdn.microsoft.com/en-us/library/system.management.automation.invocationinfo.boundparameters(v=vs.85).aspx
• SwitchParameter: http://msdn.microsoft.com/en-us/library/windows/desktop/system.management.automation.switchparameter(v=vs.85).aspx