> For the complete documentation index, see [llms.txt](https://docs.lithnet.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.lithnet.io/resource-management-powershell/v1.0/help-and-support/working-with-different-data-and-attribute-types.md).

# Working with different data and attribute types

The PowerShell cmdlets make it easy to work with attributes of different data types and multivalued properties.

#### Date data types

The client will accept both ISO8601 date formats (yyyy-MM-ddT00:00:00.000) as well as native DateTime values. Note that when providing the date as a string, the date must be in universal time.

```powershell
# Sets the expiry date to the current date and time
$obj = Get-Resource -ObjectType Person -AttributeName AccountName -AttributeValue testuser
$obj.ExpiryDate = [DateTime]::Now
Save-Resource $obj

# Sets the expiry date to a specific value
$obj.ExpiryDate = "2020-01-01T00:00:00.000"
Save-Resource $obj
```

#### Reference data types

References attributes can be any of the following

* GUID object
* String representation of a GUID
* Another resource object
* The native UniqueValue data type from another reference attribute

```powershell
# Sets the value of a person's manager attribute to a known ID
$obj = Get-Resource -ObjectType Person -AttributeName AccountName -AttributeValue testuser
$obj.Manager = '7fb2b853-24f0-4498-9534-4e10589723c4'
Save-Resource $obj

# Sets the value of a person's manager attribute to that of another object
$obj.Manager = GetResource -ObjectType Person -AttributeName AccountName -AttributeValue testuser2
Save-Resource $obj
```

#### Binary data types

Binary data types can be any of the following

* A byte array (byte\[])
* A base-64 encoded binary string

```powershell
# Sets the value of the ObjectSID attribute to a base-64 encoded string
$obj = Get-Resource -ObjectType Person -AttributeName AccountName -AttributeValue testuser
$obj.ObjectSID = "AQUAAAAAAAUVAAAAFYLkaG79nJrWb05iFzcCAA=="
Save-Resource $obj

# Sets the value of the ObjectSID attribute to a byte array
$obj = Get-Resource -ObjectType Person -AttributeName AccountName -AttributeValue testuser
$obj.ObjectSID = [Byte[]] (0, 1, 2, 3)
Save-Resource $obj
```

#### Integer data types

Integer data types can be any of the following

* A 32-bit integer (Int32 or int)
* A 64-bit integer (Int64 or long)
* A string representation that can be converted to an Int64 value

```powershell
# Sets the freeze count using an integer value
$obj = Get-Resource -ObjectType Person -AttributeName AccountName -AttributeValue testuser
$obj.FreezeCount = 5
Save-Resource $obj

# Sets the freeze count using a string value
$obj = Get-Resource -ObjectType Person -AttributeName AccountName -AttributeValue testuser
$obj.FreezeCount = "5"
Save-Resource $obj
```

#### Working with multivalued attributes

```powershell
# Setting a multivalued attribute
$obj = Get-Resource -ObjectType Person -AttributeName AccountName -AttributeValue testuser
$obj.jobTitles = @("Manager", "Engineer")
Save-Resource $obj

# Adding a value to a multivalued attribute
$obj = Get-Resource -ObjectType Person -AttributeName AccountName -AttributeValue testuser
$obj.jobTitles.Add("Developer");
Save-Resource $obj

# Removing a value from a multivalued attribute
$obj = Get-Resource -ObjectType Person -AttributeName AccountName -AttributeValue testuser
$obj.jobTitles.Remove("Developer");
Save-Resource $obj
```


---

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