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    #1

    Multiselection using Shift+click in ListGrid leads to "Maximum call stack size exceeded" exception


    Hello,

    I'm struggling with an error where selecting multiple rows in a ListGrid using Shift+click causes an exception when screen reader mode is enabled. As a result, multiselection does not work in screen reader mode.

    Problem reproduced also on latest version: v14.1p_2025-12-07/LGPL Development Only

    Steps to reproduce:
    • Use the SmartClient SDK embedded server.
    • Enable screen reader mode by uncommenting: isc.setScreenReaderMode(true); in the /showcase/index.html file
    • Open the show case and navigate to any ListGrid
    • Try to select a rows range in the grid by Shift+Click


    The exception logged in the browser developer tools console:


    Uncaught RangeError: Maximum call stack size exceeded
    at Object.isc_c_Class__getOriginalMethod [as $ct] (ISC_Core.js?isc_version=v14.1p_2025-12-07.js:556:51)
    at _3.isc_c_Class_invokeSuper [as invokeSuper] (ISC_Core.js?isc_version=v14.1p_2025-12-07.js:561:106)
    at _3.isc_GridRenderer_redraw [as redraw] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:696:412)
    at _3.isc_c_Class_invokeSuper [as invokeSuper] (ISC_Core.js?isc_version=v14.1p_2025-12-07.js:567:15)
    at _3.isc_GridBody_redraw [as redraw] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:827:23)
    at _3.isc_GridRenderer_setRowStyle [as setRowStyle] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:547:51)
    at Array.isc_Arra_callMethod [as callMethod] (ISC_Core.js?isc_version=v14.1p_2025-12-07.js:1380:173)
    at _3.isc_ListGrid__hiliteRecord [as $88] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:2115:179)
    at _3.isc_GridBody__putNativeFocusInRow [as $86a] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:883:192)
    at _3.isc_GridBody_redraw [as redraw] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:833:27)
    at _3.isc_GridRenderer_setRowStyle [as setRowStyle] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:547:51)
    at _3.isc_GridBody_updateRollOver [as updateRollOver] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:861:6)
    at _3.isc_ListGrid_clearLastHilite [as clearLastHilite] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:2117:52)
    at _3.isc_ListGrid__hiliteRecord [as $88] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:2115:6)
    at _3.isc_GridBody__putNativeFocusInRow [as $86a] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:883:192)
    at _3.isc_GridBody_redraw [as redraw] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:833:27)
    at _3.isc_GridRenderer_setRowStyle [as setRowStyle] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:547:51)
    at Array.isc_Arra_callMethod [as callMethod] (ISC_Core.js?isc_version=v14.1p_2025-12-07.js:1380:173)

    ...

    at _3.isc_ListGrid__hiliteRecord [as $88] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:2115:179)
    at _3.isc_GridBody__putNativeFocusInRow [as $86a] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:883:192)
    at _3.isc_GridBody_redraw [as redraw] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:833:27)
    at _3.isc_GridRenderer_setRowStyle [as setRowStyle] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:547:51)
    at _3.isc_GridBody_updateRollOver [as updateRollOver] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:861:6)
    at _3.isc_ListGrid_clearLastHilite [as clearLastHilite] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:2117:52)
    at _3.isc_ListGrid__hiliteRecord [as $88] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:2115:6)
    at _3.isc_GridBody__putNativeFocusInRow [as $86a] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:883:192)
    at _3.isc_GridBody_redraw [as redraw] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:833:27)
    at _3.isc_GridRenderer_setRowStyle [as setRowStyle] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:547:51)
    at Array.isc_Arra_callMethod [as callMethod] (ISC_Core.js?isc_version=v14.1p_2025-12-07.js:1380:173)
    at _3.isc_ListGrid__hiliteRecord [as $88] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:2115:179)
    at _3.isc_GridBody__putNativeFocusInRow [as $86a] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:883:192)
    at _3.isc_GridBody_redraw [as redraw] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:833:27)
    at _3.isc_GridRenderer_setRowStyle [as setRowStyle] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:547:51)
    at _3.isc_GridBody_updateRollOver [as updateRollOver] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:861:6)
    at _3.isc_ListGrid_clearLastHilite [as clearLastHilite] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:2117:52)
    at _3.isc_ListGrid__hiliteRecord [as $88] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:2115:6)
    at _3.isc_GridBody__putNativeFocusInRow [as $86a] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:883:192)
    at _3.isc_GridBody_redraw [as redraw] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:833:27)
    at _3.isc_GridRenderer_setRowStyle [as setRowStyle] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:547:51)
    at Array.isc_Arra_callMethod [as callMethod] (ISC_Core.js?isc_version=v14.1p_2025-12-07.js:1380:173)
    at _3.isc_ListGrid__hiliteRecord [as $88] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:2115:179)
    at _3.isc_GridBody__putNativeFocusInRow [as $86a] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:883:192)
    at _3.isc_GridBody_redraw [as redraw] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:833:27)
    at _3.isc_GridRenderer_setRowStyle [as setRowStyle] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:547:51)
    at _3.isc_GridBody_updateRollOver [as updateRollOver] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:861:6)
    at _3.isc_ListGrid_clearLastHilite [as clearLastHilite] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:2117:52)
    at _3.isc_ListGrid__hiliteRecord [as $88] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:2115:6)
    at _3.isc_GridBody__putNativeFocusInRow [as $86a] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:883:192)
    at _3.isc_GridBody_selectOnMouseDown [as selectOnMouseDown] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:868:27)
    at _3.isc_GridRenderer__cellMouseDown [as $29w] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:653:239)
    at _3.isc_GridRenderer_mouseDown [as mouseDown] (ISC_Grids.js?isc_version=v14.1p_2025-12-07.js:652:134)
    at _3.isc_Canvas_handleMouseDown [as handleMouseDown] (ISC_Core.js?isc_version=v14.1p_2025-12-07.js:16839:111)
    at _3.isc_c_EventHandler_bubbleEvent [as bubbleEvent] (ISC_Core.js?isc_version=v14.1p_2025-12-07.js:10469:12)
    at _3.isc_c_EventHandler_doHandleMouseDown [as doHandleMouseDown] (ISC_Core.js?isc_version=v14.1p_2025-12-07.js:8635:12)
    at _3.isc_c_EventHandler_handleMouseDown [as handleMouseDown] (ISC_Core.js?isc_version=v14.1p_2025-12-07.js:8557:11)
    at _3.isc_c_EventHandler_dispatch [as dispatch] (ISC_Core.js?isc_version=v14.1p_2025-12-07.js:11240:7)
    at HTMLDocument.eval (eval at isc__makeFunction (ISC_Core.js?isc_version=v14.1p_2025-12-07.js:107:1135), <anonymous>:3:123)
    Last edited by svatya; 8 Dec 2025, 07:20.
    Tags: None
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