Retrieves cardinality information about the item. The two attributes that represent cardinality are minOccurs
and maxOccurs
. These attributes indicate the number of times that an item can occur in a document. You obtain a collection of ISchemaParticle
objects by using the particles
property of the ISchemaModelGroup
interface.
maxOccurs | Retrieves the maximum number of times this schema item can occur in the current context. Zero is returned if the item cannot occur. Unbounded (-1) is returned if there is no limit to the number of occurrences. |
minOccurs | Retrieves the minimum number of times this schema item can occur in the current context. Zero is returned if the item is optional. |
var oParticles = oModelGroup.particles;
Set oParticles = oModelGroup.particles
HRESULT particles(ISchemaItemCollection** particles);
MSXML 4.0 and later
Implementation: msxml5.dll, msxml2.lib
Header and LIB files: msxml2.h, msxml2.lib, msxml2.idl
Inheritance: Inherits from the ISchemaItem interface.
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The interfaces ISchemaAny
, ISchemaElement
, and ISchemaModelGroup
are derived from the ISchemaParticle
interface. This inheritance provides access to the minOccurs
and maxOccurs
properties for each of the derived interfaces.
The anyAttribute
property of the interfaces ISchemaComplexType
and ISchemaAttributeGroup
returns an SchemaAny
object. The inherited properties minOccurs
and maxOccurs
are not supported for the ISchemaAny
interface when it represents an <anyAttribute>
element. Therefore, the return values will always be minOccurs
= 0 and maxOccurs
= -1 (unbounded).
ISchemaModelGroup Interface | SOM Reference