Optional Boolean. If TRUE, the field must not have an empty value assigned to it. If a nonempty field value is not given ...

Optional Boolean. If TRUE, the field must not have an empty value assigned to it. If a nonempty field value is not given in a form post, either the standard required-field text or an explicitly specified message (that is, via  tags) is displayed in the error form. This validation is handled only by the client (the database always allows NULL for all user-defined fields).

Optional Boolean. If TRUE, the field is completely hidden from the user interface. Setting ReadOnly to TRUE means the field ... Optional Boolean. If TRUE, the field is completely hidden from the user interface. Setting ReadOnly to TRUE means the field ... Optional Boolean. If TRUE, the field is not displayed in New or Edit forms but can be included in views. In addition, setting ... Optional Boolean. If TRUE, the field is not displayed in New or Edit forms but can be included in views. Setting the Hidden ... Optional Boolean. If TRUE, the field must not have an empty value assigned to it. If a nonempty field value is not given ... Optional Boolean. The value of this attribute determines whether the content type inherits fields from its parent content ... Optional Boolean. TRUE if a filter can be created on the field in a view that does not expand recurring events. If Filterable ... Optional Boolean. TRUE if the value is displayed as a percentage; that is, a number multiplied by 100 with a percent sign ... Optional Boolean. TRUE to define the column as sealed. You cannot edit sealed columns through the SharePoint Foundation user ...