SPField.Required Property

Gets or sets a Boolean value that determines whether users must enter a value for the field on New and Edit forms.

Namespace:  Microsoft.SharePoint
Assembly:  Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Available in Sandboxed Solutions: Yes
Available in SharePoint Online

public bool Required { get; set; }

Property Value

Type: System.Boolean
true if the field requires values; otherwise, false.


The list that the field belongs to is an external list.