discardChanges

Discard data in memory and reload from connected data source

Since R2024a

Syntax

discardChanges(connectionObj)

Description

discardChanges(connectionObj) discards the data in memory and reloads the data from the disk. The function returns 1 (true) if the discard was successful, and 0 (false) if the data connection was unable to revert the data from the disk.

Examples

Discard Changes to Data Dictionary

Get value for variable x in the data dictionary.

dd = Simulink.data.connect('myDictionary.sldd');
dd.x 

ans = 
    1

Update variable x and get its new value.

dd.x = dd.x + 2;
dd.x 

ans = 
    3

Discard the changes to the data dictionary. Variable x is set back to its original value.

success = discardChanges(dd);
dd.x

ans = 
    1

Input Arguments

connectionObj — Connection to data source

Simulink.data.DataConnection object

Connection to data source, specified as a Simulink.data.DataConnection object.

Version History

Introduced in R2024a