Visible Property
Sets whether to display the form or control.
Because this property also applies to containers, such as forms and subforms, if the Visible property for the container is set to No, then controls on the container are also not displayed, even if the Visible property is set to Yes.
When this property is used to hide FlowFields on tabular forms, the FlowField is no longer calculated, which can improve performance. However, you might have some code on the form that uses the information in this FlowField, which will not work properly if the FlowField is invisible and not calculated.
The setting of this property can be changed dynamically by using the VISIBLE Function (Control, Form).
Using the Visible Property on RoleTailored Client Pages
On pages, you use the Visible property to show or hide groups, parts, fields and action controls. You can show or hide a control statically by setting the property to true or false, or dynamically by using a boolean variable. Using a variable requires the following:
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The IncludeInDataSet Property property of the variable must be set to Yes.
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For field and action controls, the variable must be resolved by the OnInit Trigger or OnOpenPage Trigger.