How to set the title of CheckboxItem at the left hand side of checkbox?

[lelliao]

How to put the title of CheckboxItem at the left hand side of checkbox?

and how to let a FormItem's item don't display and don't occupiers the column of DynamicForm(how to separate title and item to independent).

[Isomorphic]

You can set any FormItem not to show its title via showTitle:false. A CheckBoxItem in particular has a label which is part of the element itself rather than rendered in an adjacent cell, and you can use showLabel:false to suppress this.

To create your own equivalent of the title or label automatically created by a FormItem, use a StaticTextItem with showTitle:false. This will show the StaticTextItem's defaultValue as a plain text value occupying one column in the form layout.

Note that if you have exotic layout requirements you can set itemLayout:"absolute" to do completely free-form item layout (pixel positioning). However this has drawbacks (see the docs for itemLayout:"absolute") including lack of automatic reflow when items are hidden.