Remove-TypeData

Deletes extended types from the current session.
Remove-TypeData -TypeData* <TypeData> [-Confirm] [-WhatIf] [<CommonParameters>]
Remove-TypeData -Path* <String[]> [-Confirm] [-WhatIf] [<CommonParameters>]
Remove-TypeData [-TypeName*] <String> [-Confirm] [-WhatIf] [<CommonParameters>]

The Remove-TypeData cmdlet deletes extended type data from the current session. This cmdlet affects only the current session and sessions that are created in the current session.

You can add properties and methods to objects in Windows PowerShell by defining them in Update-TypeData commands and Types.ps1xml files. Remove-TypeData deletes those extended properties and methods from the current session. Remove-TypeData does not delete the Types.ps1xml files or delete any extended type definitions from the Types.ps1xml files. For more information about Types.ps1xml files, see about_Types.ps1xml (http://go.microsoft.com/fwlink/?LinkID=113274).

This cmdlet was introduced in Windows PowerShell 3.0.

Parameters
-Path <String[]>

  • This value is required

Specifies an array of files that this cmdlet deletes from the session extended type data. This parameter is required.

Enter the paths and file names of one or more Types.ps1xml files. Wildcards are not supported. If you omit the path, the default location is the current directory.

-TypeData <TypeData>

  • This value is required
  • Accepts pipeline input ByValue

Specifies the type data that this cmdlet deletes from the session. This parameter is required. Enter a variable that contains TypeData objects (System.Management.Automation.Runspaces.TypeData) or a command that gets TypeData objects, such as a Get-TypeData command. You can also pipe TypeData objects to Remove-TypeData.

-TypeName <String>

  • This value is required
  • Accepts pipeline input ByValue

Specifies the types that this cmdlet deletes all extended type data for. For types in the System namespace, enter the short name. Otherwise, the full type name is required. Wildcards are not supported.

You can pipe type names to Remove-TypeData. When you pipe an object to Remove-TypeData, Remove-TypeData gets the type name of the object and removes all type data for the object type.

-Confirm [<SwitchParameter>]

  • Default value is false

Prompts you for confirmation before running the cmdlet.Prompts you for confirmation before running the cmdlet.

-WhatIf [<SwitchParameter>]

  • Default value is false

Shows what would happen if the cmdlet runs. The cmdlet is not run.Shows what would happen if the cmdlet runs. The cmdlet is not run.

<CommonParameters>

This cmdlet supports the common parameters: Verbose, Debug,ErrorAction, ErrorVariable, WarningAction, WarningVariable,OutBuffer, PipelineVariable, and OutVariable.

Inputs

System.Management.Automation.Runspaces.TypeData

http://msdn.microsoft.com/en-us/library/windows/desktop/system.management.automation.runspaces.typedata(v=vs.85 ).aspx You can pipe TypeData object, such as the ones that the Get-TypeData cmdlet returns, to Remove-TypeData. System.String You can pipe the type names to Remove-TypeData. When you pipe an object to Remove-TypeData, Remove-TypeData gets the type name of the object and removes all type data for the object type.

Outputs

None

This cmdlet does not generate any output.

Examples
  1. Remove type data for a specified type:
    PS C:> Remove-TypeData -TypeName System.Array
    

    This command deletes from the session all type data for the System.Array type, including type data that was added by a Types.ps1xml file and dynamic type data that was added to the session by using the Update-TypeData cmdlet.

  2. Remove an extended data type from a session:
    1. The first command uses the Get-TypeData cmdlet to get extended type data for the System.DateTime type.The output shows that a DateTime property has been added to all System.DateTime objects in Windows PowerShell.:
      PS C:> Get-TypeData System.DateTime
      
         TypeName        Members
         --------        -------
         System.DateTime {[DateTime, System.Management.Automation.Runspaces.ScriptPropertyData]}

      The first command uses the Get-TypeData cmdlet to get extended type data for the System.DateTime type.The output shows that a DateTime property has been added to all System.DateTime objects in Windows PowerShell.

    2. The second command uses the Get-Date cmdlet, which returns a System.DateTime object:
      PS C:> (Get-Date).DateTime
      Friday, January 20, 2012 9:01:00 PM
      

      The command uses dot notation to get the value of the DateTime property of the System.DateTime object that Get-Date returns.

    3. The third command uses the Get-TypeData cmdlet to get all extended type data for the System.DateTime type and the Remove-TypeData cmdlet to delete the extended type data:
      PS C:> Get-TypeData System.DateTime | Remove-TypeData
      
    4. The fourth command shows the effect of deleting the extended type data for the System.DateTime type:
      PS C:> (Get-Date).DateTime
      PS C:>
      

      The command repeats the second command. However, because the System.DateTime property no longer exists, a command to get its value returns nothing.This command shows the effect of removing extended type data from a session.

  3. Remove extended types for modules:
    PS C:> Get-Module | Remove-TypeData
    

    This command removes all extended type data for module objects. When you pipe an object to Remove-TypeData, Remove-TypeData gets the name of the object type and removes all type data for all objects of that type.

  4. Remove extended types from specified modules:
    PS C:> Remove-TypeData -Path "C:WINDOWSSystem32WindowsPowerShellv1.0ModulesPSScheduledJob, C:WINDOWSSystem32WindowsPowerShellv1.0ModulesPSWorkflowPSWorkflow.types.ps1xml"
    

    This command uses the Path parameter of the Remove-TypeData cmdlet to remove the extended types that are defined in the Types.ps1xml files that are added by the PSScheduledJob and PSWorkflow modules. This command does not affect dynamic type data that is added by using the Update-TypeData cmdlet. The command succeeds only when the modules have been imported into the current session.

    For more information about modules, see about_Modules (http://go.microsoft.com/fwlink/?LinkID=144311).

  5. Remove extended types from a remote session:
    PS C:> Invoke-Command -Session $S {Get-TypeData -TypeName *CIM* | Remove-TypeData}
    

    This command removes extended types from a remote session. The command uses the Invoke-Command cmdlet to remove extended type data for all CIM types in the sessions in the $S variable.

Additional Notes
 Remove-TypeData can remove only the extended type data in the current session. It cannot remove extended type 
 data that is on the computer, but has not been added to the current session, such as extended types that are 
 defined in modules that have not been imported into the current session.
Related Links

Get-TypeData
Update-TypeData