discardChanges

R2026b

Discard changes to Simulink data dictionary

Since R2023b

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    Syntax

    discardChanges(archDataObj)

    Description

    discardChanges(archDataObj) discards any changes made to the data dictionary archDataObj since the last time the data dictionary was saved.

    example

    Examples

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    Add a new enumeration data type to the Architectural Data section of a data dictionary and then discard the changes.

    Open the data dictionary MyInterfaces.sldd and use the isDirty function to verify that the data dictionary does not contain changes.

    archDataObj = Simulink.dictionary.archdata.open("MyInterfaces.sldd");
isDirty(archDataObj)
    ans =

  logical

   0

    Add enumeration data type, MyEnum.

    addEnumType(archDataObj,"MyEnum");
getDataTypeNames(archDataObj)
    ans =

  1×8 cell array

  Columns 1 through 4

    {'MyEnum'}    {'myAliasType1'}    {'myAliasType2'}    {'myAliasType3'}

  Columns 5 through 8

    {'myColor'}    {'myStructType1'}    {'myStructType2'}    {'myValueType1'}

    Discard the change.

    discardChanges(archDataObj);
getDataTypeNames(archDataObj)
    ans =

  1×7 cell array

  Columns 1 through 4

    {'myAliasType1'}    {'myAliasType2'}    {'myAliasType3'}    {'myColor'}
  Columns 5 through 7
    {'myStructType1'}    {'myStructType2'}    {'myValueType1'}

    Input Arguments

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    Architectural Data object, specified as a Simulink.dictionary.ArchitecturalData object.

    Version History

    Introduced in R2023b

    See Also

    Objects

    Functions