PowerShell: Calculated Properties

Defining a calculated property

A calculated property is defined with a hash table.

Depending on the cmdLet where the calculated property is used, one or more of the following key-names are required or optional:

`name` or `label`	Specifies the calculated property's name.
`expression`	A script block to evaluate the calculated property's dynamic value.
`alignment`	Possible values are `'left'`, `'right'` or `'center'`, used in `ConvertTo-HTML` and `Format-Table`
`formatstring`
`width`	Maximum width of a column, used in `ConvertTo-HTML` and `Format-Table`
`depth`
`ascending` and/or `descending`	A boolean value that specifies the ordering.

Key names can be abbreviated, for example with e or expr for expression.

Example

0 .. 50 | foreach-object {
   [int] $x = 31 + [Math]::Sin($_/25*[Math]::Pi) * 30
   [psCustomObject] @{ x = $x}
} |
format-table @{
  expr = { (' ' *$_.x)+'*' }
  name = 'sine'
}

PowerShell: Calculated Properties

Defining a calculated property

Example

See also