cmdlet - PowerShell Advanced Function get current ParameterSetName -

in c# can current parametersetname in processrecord override of powershell cmdlet code this:

 switch (parametersetname)  {       case fromuriparamsetname:            loadfromuri();            break;        case fromfileparamsetname:            loadfromfile();            break;  } 

i'm trying figure out how can value parametersetname in script cmdlet (advanced function).

as way expand awesome answer:

switch ($pscmdlet.parametersetname) {     "fromfile_paramset" {     }     "fromuri_paramset" {     }     "__allparametersets" {      } } 

the __allparametersets default option in ps