saveChanges

Save data in memory for connected data source to disk

Since R2024a

Syntax

saveChanges(connectionObj)

saveChanges(connectionObj) returns 1 (true) if the data connection successfully saves data in memory to the disk, and 0 (false) otherwise.

The behavior of the saveChanges function depends on the connected data source:

Base workspace — The function returns an error.
Model workspace
- Data source is the model file — The function saves the model.
- Data source is a MAT-file or .m file — The function saves the data to the file.
- Data source is MATLAB^® code — The function returns an error.
Data dictionary — The function saves the data dictionary and referenced dictionaries.

Update the value of a variable in the model workspace. Then save the change.

mw = Simulink.data.connect("myModel.slx")
mw.x = mw.x + 2;
success = saveChanges(mw)

success = 

logical
    1

Check whether the model workspace contains unsaved changes.

dirty = hasUnsavedChanges(mw)

dirty = 

logical
    0

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

Introduced in R2024a