control.setVisible (Client API reference)
Sets a value that indicates whether the control is visible.
Control types supported
|bool||Boolean||Yes||Specify true to show the control; false to hide the control.|
If a control is set to false and is in a section that is hidden and if you set the control to true, the section will be visible.
If a control bound to a Business Required column is set to not be visible, the form will no longer require it to have a value before saving. See Column requirement level for more information.
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