Gets or sets the name of the corresponding DB field in the query.

If this property is not empty, the field is a data field (as opposed to a calculated field).

Gets the Expression used to calculate the value of the current field.

If this expression is not empty, the field is a calculated field (as opposed to a data field).

Gets or sets the text of the Expression used to calculate the value of the current field.

This is a shortcut to the Text property on the expression returned by Expression.

Gets or sets the unique name of the current object. If an item with the specified name already exists in the collection, an exception is thrown.

Gets the NamedCollection containing the current object.