Multiple Dynamic Param Template - Because Tab-Completion & Intellisense

MultiDynParams.ps1

 ## TEMPLATE MULTIPLE DYNAMIC PARAMETER ##

<#
.Synopsis
   Test Dynamic Params
.DESCRIPTION
   Multiple Dynamic Param Template
   Because Tab-Completion & Intellisense
.EXAMPLE
   Try me...
#>
function Test-DynamicParam(){
    [CmdletBinding(DefaultParameterSetName='NoParam')]
    [Alias('Dyn')]
    Param(
        #Selector in Fisrt position
        [Parameter(Position=0,mandatory=$true,parameterSetName='SetOne')]
        [Switch]$One,
        [Parameter(Position=0,mandatory=$true,parameterSetName='SetTwo')]
        [Switch]$Two,
        [Parameter(Position=0,mandatory=$true,parameterSetName='SetThree')]
        [Switch]$Three,
        [Parameter(mandatory=$false)]
        #Optional switch
        [Switch]$Option
        )
    DynamicParam{
        If($PSCmdlet.ParameterSetName -eq 'SetOne'){
            ## OneA - Mandatory in Pos1
            # Create Attribute Object
            $Attrib1A = New-Object System.Management.Automation.ParameterAttribute
            $Attrib1A.Mandatory = $true
            $Attrib1A.Position = 1
            $Attrib1A.HelpMessage = "Choices for OneA: '1A1','1A2','1A3','1A4'"
            # Create AttributeCollection object for the attribute Object
            $Collection1A = new-object System.Collections.ObjectModel.Collection[System.Attribute]
            # Add our custom attribute to collection
            $Collection1A.Add($Attrib1A)
            # Add Validate Set to attribute collection
            $Values1A = '1A1','1A2','1A3','1A4'      
            $ValidateSet1A=new-object System.Management.Automation.ValidateSetAttribute($Values1A)
            $Collection1A.Add($ValidateSet1A)
            # Create Runtime Parameter with matching attribute collection
            $DynParam1A = New-Object System.Management.Automation.RuntimeDefinedParameter('OneA', [String], $Collection1A)
            
            ## OneB
            # Create Attribute Object
            $Attrib1B = New-Object System.Management.Automation.ParameterAttribute
            $Attrib1B.Mandatory = $false
            $Attrib1B.HelpMessage = "Choices for OneB: '1B1','1B2','1B3','1B4'"
            # Create AttributeCollection object for the attribute Object
            $Collection1B = new-object System.Collections.ObjectModel.Collection[System.Attribute]
            # Add our custom attribute
            $Collection1B.Add($Attrib1B)
            # Add Validate Set
            $Values1B = '1B1','1B2','1B3','1B4'      
            $ValidateSet1B=new-object System.Management.Automation.ValidateSetAttribute($Values1B)
            $Collection1B.Add($ValidateSet1B)
            # Create Runtime Parameter with matching attribute collection
            $DynParam1B = New-Object System.Management.Automation.RuntimeDefinedParameter('OneB', [String], $Collection1B)

            # Create runtime Dictionary for this ParameterSet
            $Dictionary = New-Object System.Management.Automation.RuntimeDefinedParameterDictionary
            # Add all Runtime Params to dictionary
            $Dictionary.Add('OneA', $dynParam1A)
            $Dictionary.Add('OneB', $dynParam1B)
            return $Dictionary
            }
        If($PSCmdlet.ParameterSetName -eq 'SetTwo'){
            ## TwoA
            # Create Attribute Object
            $Attrib2A = New-Object System.Management.Automation.ParameterAttribute
            $Attrib2A.Mandatory = $false
            $Attrib2A.HelpMessage = "Choices for TwoA: '2A1','2A2','2A3','2A4'"
            # Create AttributeCollection object for the attribute Object
            $Collection2A = new-object System.Collections.ObjectModel.Collection[System.Attribute]
            # Add our custom attribute to collection
            $Collection2A.Add($Attrib2A)
            # Add Validate Set to attribute collection
            $Values2A = '2A1','2A2','2A3','2A4'      
            $ValidateSet2A=new-object System.Management.Automation.ValidateSetAttribute($Values2A)
            $Collection2A.Add($ValidateSet2A)
            # Create Runtime Parameter with matching attribute collection
            $DynParam2A = New-Object System.Management.Automation.RuntimeDefinedParameter('TwoA', [String], $Collection2A)
            
            ## TwoB
            # Create Attribute Object
            $Attrib2B = New-Object System.Management.Automation.ParameterAttribute
            $Attrib2B.Mandatory = $true
            $Attrib2B.HelpMessage = "Choices for TwoB: '2B1','2B2','2B3','2B4'"
            # Create AttributeCollection object for the attribute Object
            $Collection2B = new-object System.Collections.ObjectModel.Collection[System.Attribute]
            # Add our custom attribute
            $Collection2B.Add($Attrib2B)
            # Add Validate Set
            $Values2B = '2B1','2B2','2B3','2B4'      
            $ValidateSet2B=new-object System.Management.Automation.ValidateSetAttribute($Values2B)
            $Collection2B.Add($ValidateSet2B)
            # Create Runtime Parameter with matching attribute collection
            $DynParam2B = New-Object System.Management.Automation.RuntimeDefinedParameter('TwoB', [String], $Collection2B)

            ## Create runtime Dictionary for this ParameterSet
            $Dictionary = New-Object System.Management.Automation.RuntimeDefinedParameterDictionary
            # Add all Runtime Params to dictionary
            $Dictionary.Add('TwoA', $dynParam2A)
            $Dictionary.Add('TwoB', $dynParam2B)
            return $Dictionary
            }
        If($PSCmdlet.ParameterSetName -eq 'SetThree'){
            ## ThreeA
            # Create Attribute Object
            $Attrib3A = New-Object System.Management.Automation.ParameterAttribute
            $Attrib3A.Mandatory = $false
            $Attrib3A.HelpMessage = "Choices for ThreeA: '3A1','3A2','3A3','3A4'"
            # Create AttributeCollection object for the attribute Object
            $Collection3A = new-object System.Collections.ObjectModel.Collection[System.Attribute]
            # Add our custom attribute to collection
            $Collection3A.Add($Attrib3A)
            # Add Validate Set to attribute collection
            $Values3A = '3A1','3A2','3A3','3A4'      
            $ValidateSet3A=new-object System.Management.Automation.ValidateSetAttribute($Values3A)
            $Collection3A.Add($ValidateSet3A)
            # Create Runtime Parameter with matching attribute collection
            $DynParam3A = New-Object System.Management.Automation.RuntimeDefinedParameter('ThreeA', [String], $Collection3A)
            
            ## ThreedB
            # Create Attribute Object
            $Attrib3B = New-Object System.Management.Automation.ParameterAttribute
            $Attrib3B.Mandatory = $false
            $Attrib3B.HelpMessage = "Choices for ThreeA: '3B1','3B2','3B3','3B4'"
            # Create AttributeCollection object for the attribute Object
            $Collection3B = new-object System.Collections.ObjectModel.Collection[System.Attribute]
            # Add our custom attribute
            $Collection3B.Add($Attrib3B)
            # Add Validate Set
            $Values3B = '3B1','3B2','3B3','3B4'      
            $ValidateSet3B=new-object System.Management.Automation.ValidateSetAttribute($Values3B)
            $Collection3B.Add($ValidateSet3B)
            # Create Runtime Parameter with matching attribute collection
            $DynParam3B = New-Object System.Management.Automation.RuntimeDefinedParameter('ThreeB', [String], $Collection3B)

            ## Create runtime Dictionary for this ParameterSet
            $Dictionary = New-Object System.Management.Automation.RuntimeDefinedParameterDictionary
            # Add all Runtime Params to dictionary
            $Dictionary.Add('ThreeA', $dynParam3A)
            $Dictionary.Add('ThreeB', $dynParam3B)
            return $Dictionary
            }
        }
    begin{
        #BeginBlock
        If($PSCmdlet.ParameterSetName -eq 'NoParam'){Help Test-DynamicParam; Break}
        Clear
        }
    Process{
        #ProcessBlock
        If($PSCmdlet.ParameterSetName -eq 'SetOne'){$string = 'Hello'}
        If($PSCmdlet.ParameterSetName -eq 'SetTwo'){$string = 'World'}
        If($PSCmdlet.ParameterSetName -eq 'SetThree'){$string = 'HelloWorld'}
        }
    end{
        #EndBlock 
        return $String
        }
    }
#####EndFunction