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Determine whether block path represents valid block hierarchy



validate(bp) determines whether the block path represents a valid block hierarchy. If the block path is invalid, the function returns an error. The function checks that:

  • All elements in the block path represent valid blocks

  • Each element except the last is a valid Model block and references the model of the following element


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Open the project named ModelReferenceHierarchy.


The project opens a model hierarchy with sldemo_mdlref_depgraph as the top model.

Create a Simulink.BlockPath object that represents a block correctly.

bp = Simulink.BlockPath(...
    'sldemo_mdlref_heater/Fahrenheit to Celsius'});

Check whether the block path is valid.


The block path is valid, so the function does not return an error.

Suppose you create a Simulink.BlockPath object that represents a block incorrectly. For example, a model name or block name in the path has a typo. In this case, the function returns an error because the block path is invalid.

Input Arguments

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Fully specified block path, specified as a Simulink.BlockPath object. This block path uniquely identifies a block within a model hierarchy, even when the model hierarchy references the same model multiple times.

Version History

Introduced in R2010b