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                                dxDataGrid renders dxNumberBox for numeric columns. So, you can specify any dxNumberBox option except onValueChanged using the editorOptions property of your column.

                                • MaxCodeNoob 10.23.2019

                                  <dxi-column dataField="SUPP_OPER_SEQ" dataType="number" [max]="3"></dxi-column>

                                  Uncaught Error: Template parse errors:
                                  Can't bind to 'max' since it isn't a known property of 'dxi-column'.

                                  max is not working with <dxi-column>

                                • Nikolai (DevExpress Support) 10.23.2019

                                  DataGrid columns do not have the max option. That is why your approach does not work. Please take a closer look at my previous answer where I described how to resolve the issue.

                                  In addition, refer to the DataGrid - Editing - Customize_Editors help topic that describes how to customize editor options of the DataGrid column.