Create and route an event of this type in order to update a data item by specifying a dictionary of field-position/field-value pairs. If the update does not succeed, a response is provided by a DataViewItemException event.

msgId is an optional field for a message ID that applications can use to identify responses.

dvName is the unique name of this item’s associated DataView definition.

dvItemId is the service-generated ID (see DataViewItem) of the item to be deleted, or -1 if you supply all key field values in fieldValues (see below).

timeStamp is the timestamp of the update (seconds since epoch). If the value given is -1.0, the service will populate it using correlator currentTime. Note that the default value of the field is 0.0, which prevents trend graphs from updating.

fieldValues is a dictionary of field-position/field-value pairs that specifies the new field values. Field values are in string form. A field’s position is its index into the fieldNamessequence specified in the associated DataView definition (see also Looking Up Field Positions). If dvItemId is -1, fieldValues must include the key values.

extraParams is an optional field that future implementations may use.