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What is Nillable true?
The nillable attribute specifies whether or not an explicit NULL value can be assigned to the element. True enables an instance of the element to have the NULL attribute set to true. The NULL attribute is defined as part of the XML Schema namespace for instances. The default is false.
What is Xsd Nillable?
The nillable attribute can be defined on an xsd:element within an XML schema. It specifies that the xsi:nil attribute is valid for the element. If an XML schema has defined the nillable attribute as true, it is mapped as a required attribute and is included in the document, however, its values are nullified.
What is minOccurs 0 in XSD?
optional
means A is optional and may appear at most once. means A is required and may repeat an unlimited number of times.
What is minOccurs and maxOccurs in WSDL?
The minOccurs attribute specifies the minimum number of times that the element can occur. It can have a value of 0 or any positive integer. The maxOccurs attribute specifies the maximum number of times that the element can occur. The default value for both attributes is 1.
What minOccurs 0?
The value of the minOccurs attribute is 0 means the element is optional. An element is required to appear when the value of minOccurs is 1 or more. Also value 1 is the default.
Why do we need XSD?
It can be used by programmers to verify each piece of item content in a document, to assure it adheres to the description of the element it is placed in. Like all XML schema languages, XSD can be used to express a set of rules to which an XML document must conform to be considered “valid” according to that schema.
What is minOccurs 1 in XSD?
In general, an element is required to appear when the value of minOccurs is 1 or more. The maximum number of times an element may appear is determined by the value of a maxOccurs attribute in its declaration. The default value for both the minOccurs and the maxOccurs attributes is 1.
When to use Nill or minoccurs in soap?
I have concluded from the above that minOccurs=”0″ is a definition that states the element within the XML is optional, but does not have any particular meaning. It is clear that within a SOAP message; to communicate no value for a particular element nill=”true” should be used within an empty element.
Which is nillable and which is minoccurs in XML?
The last one is ‘minzeronil’ element which is both nillable=”true” and minOccurs=”0″. Whenever you don’t need to set a value for this element, you have the choice of either skipping the element or setting the value of the element to nil.
Can a nonboth have true or false minoccurs?
Take the first element ‘nonboth’ in the schema, It has not any minOccurs or nillable attribute. By default minOccurs equal to 1 and nillable equal to false. That mean it can’t have nil value nor it can not be removed from the xml.
Can a schema have minoccurs equal to 0?
You can safely say the following XML is valid for the above Schema. Take the first element ‘nonboth’ in the schema, It has not any minOccurs or nillable attribute. By default minOccurs equal to 1 and nillable equal to false. That mean it can’t have nil value nor it can not be removed from the xml.