| Parameter | Description |
|---|---|
| iField | Number of the column in the table |
Property Integer Field_Changed_State
| Read Access: | Get Field_Changed_State iField to IntegerVariable |
| Write Access: | Set Field_Changed_State iField to IntegerVariable/Value |
Field_Changed_State flags a column as changed or not, which determines whether the column participates in a save operation. Gets/sets Field_Changed_State of the passed column. Returns True when a column has been changed since this object was last cleared or a record found in it.
In Web Applications, use DDSetChangedValue is the recommended way of change the value of an data-bound web data entry object (DEO) during a web request.
Boolean bState Get Field_Changed_State Field Customer.Name to bState
Field_Changed_State will not indicate whether a related parent has changed.
For example, in the Order entry sample workspace, table Invt (inventory items) relates to table Vendor. Specifically, Invt.Vendor_Id relates to Vendor.Id. If an inventory item record is changed and the only change is that it is now related to a different vendor record, the Field_Changed_State of Invt.Vendor_Id is False, not True.
Should_Save will be set to True if any change is made to a record, including a related parent record change. In the sample scenario above, Should_Save of the DataDictionary Object for the Invt table will return True.
See the documentation for Should_Save for information about determining whether a parent record has switched.
Many of the DataDictionary methods contain a two variants of the same message: Field_Message and File_Field_Message. For a complete description of these messages please refer to The Field and File_Field DD Interfaces.
The Field_ version of a message must use the keyword FIELD to identify the file.field name. The File_Field_ version must use the keyword FILE_FIELD to identify the file.field values. These should never be mixed!
// When using Field_ message use the FIELD keyword Get Field_Changed_State Field Customer.Name to bState // When using the File_Field_ message use the FILE_FIELD keyword Get File_Field_Changed_State of oCustomer_DD File_Field Customer.Name to bStateSee Also