Dynamic Matrix is missing from a list of available questions in the condition builder UI

[JaneSjs]

Implemented

Since Survey Creator v1.12.11, you can enable the logic.includeComplexQuestions property in global settings if you want to make matrices, Dynamic Panel, and Multiple Textboxes available in the condition builder UI:

import { settings } from "survey-creator-core"
settings.logic.includeComplexQuestions = true;

History

T20733 - Dynamic matrix question is not showing while adding logic conditions to other questions https://surveyjs.answerdesk.io/internal/ticket/details/T20733

---

A matrix can be used in exressions: for instance, to check whether a matrix is not empty.

{matrix} notempty

Consider a demo survey JSON:

{
  "logoPosition": "right",
  "pages": [
    {
      "name": "page1",
      "elements": [
        {
          "type": "matrixdynamic",
          "name": "question1",
          "columns": [
            {
              "name": "Column 1"
            },
            {
              "name": "Column 2"
            },
            {
              "name": "Column 3"
            }
          ],
          "choices": [
            1,
            2,
            3,
            4,
            5
          ]
        }
      ]
    },
    {
      "name": "page2",
      "elements": [
        {
          "type": "radiogroup",
          "name": "question2",
          "choices": [
            {
              "value": "Item 1",
              "text": "Yes"
            },
            {
              "value": "Item 2",
              "text": "No"
            }
          ]
        },
        {
          "type": "matrixdynamic",
          "name": "question3",
          "columns": [
            {
              "name": "Column 1"
            },
            {
              "name": "Column 2"
            },
            {
              "name": "Column 3"
            }
          ],
          "choices": [
            1,
            2,
            3,
            4,
            5
          ]
        }
      ]
    }
  ],
  "triggers": [
    {
      "type": "copyvalue",
      "expression": "{question2} = 'Item 1' and {question1} notempty",
      "fromName": "question1",
      "setToName": "question3"
    }
  ]
}

However, the condition editor doesn't display a matrix in a list of available form elements:

[JaneSjs]

@andrewtelnov, a matrix doesn't appear in a list. Instead, [object] appears. View Demo Please check.