Provides access to members that control the graphic element type.

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Description

An element type holds the common properties of one element’s type in a project. The common properties of an element are stored and defined by the element type. Element types support parent–child relationships, allowing a child element type to inherit the parameters set for its parent. Typically, a parent element type may not be displayed in a diagram; only the child element types are displayed by associating them with a diagram type.

Generally, an element group is also associated with an element type. An element group is a set of elements that have the same graphic effects. When you create a new element type, you have to decide if your new element type will be associated with an element group or not. Even if you can redefine element types as a group at any time, this decision is important. It determines what you will afterward be authorized to define for your element type. When your element type is a group, you can define any graphic effects and create any property on it. If your element type is not a group, it is impossible. By default, if an element type inherits from another element type, and if it is not a group, it inherits the graphic effects and properties defined for the first of its ancestor element types, which is a group itself.

When you define an element type, you typically declare:

- The name of this element type,

- The type of the elements (node, link, drawing, sublink or node-on-link),

- Eventually, the name of its parent element type.

If you want to create an element type, you can use the ArcGIS Schematics Designer or call the CreateElementType method available from the INgProjectBuilder interface in your program code.

Your element type definition can be then completed by defining:

- The query returning all the elements of this element type,

- The fields used to build up each element identifier for this type,

- The attributes associated with this element type,

- The properties associated with this element type,

- The userdata associated with this element type.

All these characteristics can be defined through the ArcGIS Schematics Designer, or in your program code through the INgObjectType interface associated with your INgElementType interface.

Members

	All Properties Methods	Description
	AddFlagModel	Associates the specified flag model with the element type. The optional 'mode' parameter specifies the connection mode for the flag pole. Its default value is 'esriNgStandard'.
	AddPatternModel	Associates the specified pattern model with the element type.
	Ancestors	List of the ancestor element types for the element type.
	AssociatedDiagramTypes	List of the diagram types the element type is associated with.
	AssociatedProperties	List of properties related to the element type that are associated with the attribute named 'attributeName' or the list of all the properties related to the element type when no attribute name is specified.
	AssociatedPropertyAttribute	Attribute associated with the property named 'propertyName' that is defined for the element type.
	AssociatedUserDataAttribute	Attribute associated with the userdata named 'userdataName' that is defined for the element type.
	AssociatedUserDatas	List of userdata related to the element type that are associated with the attribute named 'attributeName' or the list of all the userdata related to the element type when no attribute name is specified.
	AssociateProperty	Relates the specified property to the element type and associates this property with the attribute named 'attributeName'.
	AssociateUserData	Relates the specified userdata to the element type and associates this userdata with the attribute named 'attributeName'.
	Children	List of the child element types for the element type.
	CreateProperty	Creates the new property named 'name' for the element type. The 'propertyType' parameter specifies the property type and the 'propertyValue' parameter specifies the type of property value.
	Delete	Deletes the element type. When setting the 'deleteDescendants' parameter to TRUE, all the element types that inherit from this element type are also deleted.
	Descendants	List of the descendant element types for the element type.
	DissociateProperty	Deletes the association between the specified property and the element type.
	DissociateUserData	Deletes the association between the specified userdata and the element type.
	ElementGroup	Element group related to the element type. It is the current element type itself or one of its ancestor element types.
	Elements	List of the elements implemented by the element type.
	ElementTypeEffects	List of the effects set for the element type.
	FlagModels	List of flag models associated with the element type.
	GetEffect	Returns the effect 'effect' set for the element type (see esriNgElementTypeEffect).
	GetElement	Returns the element named 'eltName' implemented by the element type.
	GetElementsByUserData	Returns the list of the elements that are implemented by this element type and which each associated user-data in the 'userDatas' list verifies the 'values' list corresponding values.
	GetFlagModel	Returns the flag model named 'flagModelName' associated with the element type.
	GetPatternModel	Returns the pattern model named 'patternModelName' associated with the element type.
	GetPoleEffect	Returns the effect 'effect' set for the pole that connects the flags of the flag model named 'flagModelName' associated with the element type.
	GetProperty	Returns the property named 'propertyName' associated with the element type.
	GetSubSymbolEffect	Returns the effect 'effect' set for the sub-symbol named 'subName' that represents the element type.
	IsEffectSet	Indicates if the effect 'effect' related to the element type is set (see esriNgElementTypeEffect).
	IsElementGroup	Indicates if the element type is associated with an element group.
	IsPoleEffectSet	Indicates if the effect 'effect' related to the pole that connects the flags of the flag model named 'flagModelName' associated with the element type is set.
	IsSubSymbolEffectSet	Indicates if the effect 'effect' related to the sub-symbol named 'subName' that represents the element type is set.
	Name	Name of the element type.
	Parent	Parent element type of the element type.
	PatternModels	List of pattern models associated with the element type.
	Properties	List of the properties associated with the element type.
	RemoveEffect	Removes the effect or restores the effect 'effect' set for the element type (see esriNgElementTypeEffect).
	RemoveFlagModel	Removes the association between the specified flag model and the element type.
	RemovePatternModel	Removes the association between the specified pattern model and the element type.
	RemovePoleEffect	Removes the effect or restores the default effect 'effect' for the pole that connects the flags of the flag model named 'flagModelName' associated with the element type.
	RemoveSubSymbolEffect	Removes the effect 'effect' set for the sub-symbol named 'subName' that represents the element type.
	SetEffect	Modifies the effect 'effect' set for the element type (see esriNgElementTypeEffect).
	SetPoleEffect	Modifies the effect 'effect' set for the pole that connects the flags of the flag model named 'flagModelName' associated with the element type.
	SetSubSymbolEffect	Modifies the effect 'effect' set for the sub-symbol named 'subName' that represents the element type.
	Type	Type of the element type (see esriNgElementTypeEnum).

CoClasses that implement INgElementType

See Also

INgElement Interface | ISchematicElementClass Interface

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