aspnet-14573-components-site-navigation-and-layout-form-layout-concepts-item-manipulation.md
With the ASPxFormLayout, you can easily create form layouts of any complexity by combining the order and hierarchy of the provided layout elements. The main layout elements of ASPxFormLayout consist of labeled items, labeled regular groups and tabbed groups.
Item elements serve as placeholders for controls or custom content. Group elements are containers for other layout elements. It is possible to nest one group inside another group.
Items and groups can be created manually at design time via the FormLayout Editor or directly in markup.
You can use the FormLayout Editor dialog to create ASPxFormLayout items manually at design time. To run the FormLayout Editor, invoke the control’s smart tag and click the “Edit Layout…” link.
The FormLayout Editor dialog allows you to add, delete and rearrange layout items and groups, and access and customize their settings. This dialog is shown in the image below.
When you press the OK button, the markup with customized layout items and groups is added. You can create or edit item settings directly in markup.
The following actions are available.
Adding a layout item with or without a nested control, a layout group, or a tabbed layout group
Adding a nested control to an existing layout item
Changing the existing item type
Removing a nested control