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[Knockout] An exception is thrown when a collapsed panel contains a Multi-Select Matrix #7355

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JaneSjs opened this issue Nov 15, 2023 · 1 comment
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[Knockout] An exception is thrown when a collapsed panel contains a Multi-Select Matrix #7355

JaneSjs opened this issue Nov 15, 2023 · 1 comment
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@andrewtelnov
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bug
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v1.9.118

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@JaneSjs
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JaneSjs commented Nov 15, 2023

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If a panel is collapsed by default ("state": "collapsed"), the following exception appears:

survey.core.min.js:6 Uncaught TypeError: Cannot read properties of null (reading 'forEach')
    at t.collectNestedQuestonsInRows (survey.core.min.js:6:451434)
    at t.collectNestedQuestionsCore (survey.core.min.js:6:451325)
    at t.collectNestedQuestions (survey.core.min.js:6:304046)
    at t.onHidingContent (survey.core.min.js:6:450917)
    at survey.core.min.js:6:847134
    at Array.forEach (<anonymous>)
    at t.notifyStateChanged (survey.core.min.js:6:847104)
    at t.set (survey.core.min.js:6:238940)
    at e.setValue (survey.core.min.js:6:62862)
    at e.valueToObj (survey.core.min.js:6:86450)

It works in React (demo).
@JaneSjs JaneSjs added the bug label Nov 15, 2023
@JaneSjs JaneSjs changed the title [Knockout] The Uncaught TypeError: Cannot read properties of null (reading 'forEach') exception is thrown when a Collapsed Panel Contains a Multi-Select Matrix with column [Knockout] The Uncaught TypeError: Cannot read properties of null (reading 'forEach') exception is thrown when a Collapsed Panel Contains a Multi-Select Matrix Nov 15, 2023
@andrewtelnov andrewtelnov self-assigned this Nov 16, 2023
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@JaneSjs It has been fixed in v1.9.117. Here is the updated example.
I will add a unit test on it.

andrewtelnov added a commit that referenced this issue Nov 16, 2023
@andrewtelnov
Add unit test for bug #7355
59e388c
@RomanTsukanov RomanTsukanov changed the title [Knockout] The Uncaught TypeError: Cannot read properties of null (reading 'forEach') exception is thrown when a Collapsed Panel Contains a Multi-Select Matrix [Knockout] An exception is thrown when a collapsed panel contains a Multi-Select Matrix Nov 21, 2023
@OlgaLarina OlgaLarina added this to the v1.9.118 milestone Nov 28, 2023
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