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Db > Db Assembly Interfaces > IDatasetInstanceField

IDatasetInstanceField

Description

The IDatasetInstanceField interface contains properties of record field of data source.

Properties

	Property name	Brief description
	OldValue	The OldValue interface returns an old value of record field of data source.
	Value	The Value property determines the value of record field of data source.

Properties inherited from IDatasetModelField

	Property name	Brief description
	DataDomain	The DataDomain property determines the data type of data source field, if it is intended to store multibyte information.
	DataType	The DataType property returns the type of data that could be contained in the data source field.
	DefaultValue	The DefaultValue property returns the default value for the field of data source.
	Expression	The Expression property returns expression of calculated field.
	IdWithOutCase	The IdWithOutCase property returns data source identifier considering case.
	IsCalculated	The IsCalculated property returns True if the field of data source is calculated.
	IsData	The IsData property returns True if the field of data source is regular (not calculated).
	IsKey	The IsKey property is not supported.
	IsSparse	The IsSparse property returns whether sparse columns are used to store data.
	Mandatory	The Mandatory property returns True if empty values in the field are not allowed.
	Precision	The Precision property returns value accuracy (quantity of signs after dot) of data source field.
	ReadOnly	The ReadOnly property returns True if the data source field is available only for reading.
	Size	The Size property returns total length of data source field.

Properties Inherited From  INamedEntityModel

	Property name	Brief description
	Id	The Id property returns object identifier.
	Key	The Key property returns object key.
	Name	The Name property returns object name.

See also:

Db Assembly Interfaces