bug in grid with a frozen column and a visibleWhen field

[claudiobosticco]

SmartClient Version: v13.1p_2025-07-11/AllModules Development Only (built 2025-07-11)

Hello, please try this test case in the showcase:

isc.DynamicForm.create({
    ID: "testForm",
    numCols: 8,
    margin: 5,
    fields: [
        {
            name: "TEST",
            title: "Test",
            valueMap: {
                "foo": "foo",
                "bar": "bar"
            }
        }
    ]
});

isc.ListGrid.create({
    ID: "companyList",
    autoFetchData: true,
    dataSource: worldDS,
    showAllRecords: true,
    canEdit: true,
    fields: [
        {name: "countryCode", frozen: true},
        {
            name: "countryName",
            visibleWhen: {
                _constructor: "AdvancedCriteria",
                operator: "or",
                criteria: [
                    {
                        fieldName: "testForm.values.TEST",
                        operator: "notEqual",
                        value: "bar"
                    }
                ]
            }
        },
        {name: "capital"},
        {name: "continent"}
    ]
});

isc.TabSet.create({
    ID: "tabsetTest", width: 400, height: 300,
    tabs: [
        {
            ID: "tab1", title: "Tab 1",
            pane: isc.Label.create({contents: "foo bar"})
        },
        {
            ID: "tab2", title: "Tab 2",
            pane: companyList
        }
    ]
});

isc.VLayout.create({
    members: [
        testForm,
        tabsetTest
    ]
});

then:
- choose "bar" from the select
- select Tab 2

you'll see this in the developer console:

17:44:53.825:TMR3:WARN:Log:TypeError: Cannot read properties of null (reading 'slice')
Stack from error.stack:
    ListGrid.getFrozenSlots(<no args: exited>) on[ListGrid ID:companyList] @ ISC_Grids.js:2909:190
    GridBody.adjustOverflow(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Grids.js:752:27
    Canvas._updateHTML(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:3742:86
    Canvas.redraw(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:3733:705
    [c]Class.invokeSuper(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:326:162
    GridRenderer.redraw(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Grids.js:715:412
    [c]Class.invokeSuper(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:326:162
    GridBody.redraw(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Grids.js:846:23
    [c]Canvas.clearRedrawQueue(<no args: exited>) on [Class Canvas] @ ISC_Core.js:4995:110
    [c]Class.fireCallback(_1=>Obj, _2=>null, _3=>null, _4=>null, _5=>true) on [Class Timer] @ ISC_Core.js:340:252
    Timer._fireTimeout(_1=>"$ir226", _2=>344, _3=>undef) on [Class Timer] @ ISC_Core.js:2558:6
    null.<anonymous>() @ ISC_Core.js:2553:40

17:44:54.090:TMR5:WARN:Log:TypeError: Cannot read properties of null (reading 'slice')
Stack from error.stack:
    ListGrid.getFrozenSlots(<no args: exited>) on[ListGrid ID:companyList] @ ISC_Grids.js:2909:190
    GridBody.adjustOverflow(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Grids.js:752:27
    Canvas._updateHTML(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:3742:86
    Canvas.redraw(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:3733:705
    [c]Class.invokeSuper(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:326:162
    GridRenderer.redraw(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Grids.js:715:412
    [c]Class.invokeSuper(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:326:162
    GridBody.redraw(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Grids.js:846:23
    [c]Canvas.clearRedrawQueue(<no args: exited>) on [Class Canvas] @ ISC_Core.js:4995:110
    [c]Class.fireCallback(_1=>Obj, _2=>null, _3=>null, _4=>null, _5=>true) on [Class Timer] @ ISC_Core.js:340:252
    Timer._fireTimeout(_1=>"$ir238", _2=>356, _3=>undef) on [Class Timer] @ ISC_Core.js:2558:6
    null.<anonymous>() @ ISC_Core.js:2553:40

17:44:54.288:TMR6:WARN:Log:TypeError: Cannot read properties of null (reading 'slice')
Stack from error.stack:
    ListGrid.getFrozenSlots(<no args: exited>) on[ListGrid ID:companyList] @ ISC_Grids.js:2909:190
    GridBody.adjustOverflow(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Grids.js:752:27
    Canvas._updateHTML(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:3742:86
    Canvas.redraw(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:3733:705
    [c]Class.invokeSuper(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:326:162
    GridRenderer.redraw(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Grids.js:715:412
    [c]Class.invokeSuper(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:326:162
    GridBody.redraw(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Grids.js:846:23
    [c]Canvas.clearRedrawQueue(<no args: exited>) on [Class Canvas] @ ISC_Core.js:4995:110
    [c]Class.fireCallback(_1=>Obj, _2=>null, _3=>null, _4=>null, _5=>true) on [Class Timer] @ ISC_Core.js:340:252
    Timer._fireTimeout(_1=>"$ir248", _2=>366, _3=>undef) on [Class Timer] @ ISC_Core.js:2558:6
    null.<anonymous>() @ ISC_Core.js:2553:40

17:44:54.484:TMR5:WARN:Log:TypeError: Cannot read properties of null (reading 'slice')
Stack from error.stack:
    ListGrid.getFrozenSlots(<no args: exited>) on[ListGrid ID:companyList] @ ISC_Grids.js:2909:190
    GridBody.adjustOverflow(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Grids.js:752:27
    Canvas._updateHTML(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:3742:86
    Canvas.redraw(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:3733:705
    [c]Class.invokeSuper(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:326:162a
    GridRenderer.redraw(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Grids.js:715:412
    [c]Class.invokeSuper(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:326:162
    GridBody.redraw(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Grids.js:846:23
    [c]Canvas.clearRedrawQueue(<no args: exited>) on [Class Canvas] @ ISC_Core.js:4995:110
    [c]Class.fireCallback(_1=>Obj, _2=>null, _3=>null, _4=>null, _5=>true) on [Class Timer] @ ISC_Core.js:340:252
    Timer._fireTimeout(_1=>"$ir258", _2=>376, _3=>undef) on [Class Timer] @ ISC_Core.js:2558:6
    null.<anonymous>() @ ISC_Core.js:2553:40

17:44:54.676:TMR7:WARN:Log:TypeError: Cannot read properties of null (reading 'slice')
Stack from error.stack:
    ListGrid.getFrozenSlots(<no args: exited>) on[ListGrid ID:companyList] @ ISC_Grids.js:2909:190
    GridBody.adjustOverflow(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Grids.js:752:27
    Canvas._updateHTML(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:3742:86
    Canvas.redraw(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:3733:705
    [c]Class.invokeSuper(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:326:162
    GridRenderer.redraw(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Grids.js:715:412
    [c]Class.invokeSuper(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Core.js:326:162
    GridBody.redraw(<no args: exited>) on [GridBody ID:companyList$51d] @ ISC_Grids.js:846:23
    [c]Canvas.clearRedrawQueue(<no args: exited>) on [Class Canvas] @ ISC_Core.js:4995:110
    [c]Class.fireCallback(_1=>Obj, _2=>null, _3=>null, _4=>null, _5=>true) on [Class Timer] @ ISC_Core.js:340:252
    Timer._fireTimeout(_1=>"$ir268", _2=>386, _3=>undef) on [Class Timer] @ ISC_Core.js:2558:6
    null.<anonymous>() @ ISC_Core.js:2553:40

[claudiobosticco]

Hello, may I ask if you see the issue?

[Isomorphic]

This one is assigned - it looks like what's going on is that the visibleWhen declaration removes a field from the visible fields array at a time when the frozen columns subsystem expects the visible fields array to be stable.

[claudiobosticco]

SmartClient Version: v13.1p_2025-08-21/Enterprise Deployment (built 2025-08-21)

Hi, are there any updates regarding this issue? It still occurs in the latest build.

[Isomorphic]

hi Claudio - this 13.1/14.0 issue has been fixed for today's builds, dated August 22, and later ones.

[claudiobosticco]

SmartClient Version: v13.1p_2025-08-22/AllModules Development Only (built 2025-08-22)

I see it's working now, thank you very much.