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                        How to disable single task selection when I use multi-select
hello, How to disable single task selection when I use multi-select attribute, 'onTaskClick' event doesn't work properly
@guyutian, the onTaskClick event fires after the onBeforeTaskSelected event, so you cannot use it to cancel the task selection with ordinary clicks. You will need to use a different approach.
You can add the mousedown event handler and check if you clicked on a task bar in the timeline or on the task row in the grid. If you didn't press the Shift or Control key, you can save the task ID in a variable. Then you can return false in the onBeforeTaskSelected event handler if the ID matches the task ID.
Here is the snippet: https://snippet.dhtmlx.com/3umuzpfw