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Editing Tools of the Diagram Tab

Many of the operations you perform in the Diagram tab can be performed in a number of ways, menus and tool bars being the most common. This section briefly describes menu and tool bar use, and introduces two additional features, for defining XML Schema - drag-and-drop and QuickEdit.


Tip		Once you create a node, you describe it by editing its properties in the Properties window.

Menus and Tool Bars

The complete set of available operations is defined by the menu system. The tool bar represents a subset of menu operations. The top-level menu ( XMLSchema > Diagram), the shortcut menus, and the tool bar are context sensitive - only operations that are permitted given the current context are available. For example, if you want to add an element to a sequence, you can

Select XML Schema > Diagram > Add > Element from the main menu

Select Add > Element from the sequence shortcut menu

Click the Add button

on the tool bar and select Element from the drop-down list it displays

Each of these actions let you add a new node, in this case, an element, to your XML Schema definition.

Drag-and-Drop

An alternative to using the menu and the tool bar is to use drag-and-drop, which lets you add an existing node to another node's definition. For example, say you wanted to add an existing element to a sequence. You can do this by dragging the element icon to the sequence icon, as shown in Figure 73.

Figure 73. Using Drag-and-Drop to Define a Node

Use drag-and-drop any time you want to define a node using a node already defined in your XML Schema.


Tip		When you drag and drop, you remove the element from its current context. If you want to make a copy an element, press and hold the CTRL key when you perform the drag operation.

Typical targets of drag-and-drop operations include the following nodes

schema

sequence

choice

all

list

annotation

restriction

union

Typical sources for drag-and-drop operations include the following nodes

simpleType

element

annotation


Tip		Any node you drag to the `schema` node is created as a child of the `schema` node.

QuickEdit

QuickEdit is a feature of the Diagram tab that streamlines common editing operations. For example, you can use QuickEdit to

Change a sequence to a choice or to an all

Specify a restriction for a simpleType

Create sequence, choice, any, and all element definitions

For example, the following structure was created by selecting QuickEdit > Add Elements Choice from the complexType's shortcut menu.

Figure 74. QuickEdit Creates Complex Definitions With a Click

QuickEdit appears on the top-level and shortcut menus in those contexts in which it is available, and it is also available on the tool bar by pressing the QuickEdit button .

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Editing Tools of the Diagram Tab

Menus and Tool Bars

Drag-and-Drop

QuickEdit

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