Table of Contents
How to set default value in XML?
You can specify the default value of an XML element or XML attribute by applying a DefaultValueAttribute to a member. To examine the result of applying the value, compile the application into a DLL or executable, and pass the resulting file as an argument to the XML Schema Definition tool (XSD.exe).
How to define boolean in XML?
XML boolean type is an XSD Simple Data types that represent True or False or Yes / No values as their types and assigned a value as 0 for false and 1 for true. A keyword bool defines it, and it is a simple resource which is referenced in the name attribute. Under a single XML file, we can combine many bool resources.
Does XML have boolean?
A boolean is an XML schema primitive data type, as specified in [XMLSCHEMA2/2] section 3.2. 2. It is declared as an element with a type attribute of “boolean”. The value of a boolean element is an integer whose only valid values are 1 (TRUE) or 0 (FALSE).
What is XS boolean?
Description. The value space of xs:boolean is “true” and “false,” and its lexical space accepts true, false, and also “1” (for true) and “0” (for false).
What are the four default values of an attribute?
There are four different types of default values you can specify for an attribute in Default:
- #REQUIRED—The attribute is required.
- #IMPLIED—The attribute is optional.
- #FIXED value—The attribute has a fixed value.
- default—The default value of the attribute.
Which is a valid XML code?
An XML document with correct syntax is called “Well Formed”. The syntax rules were described in the previous chapters: XML documents must have a root element. XML elements must have a closing tag.
What is complex type in XML?
An element of type complexType can contain text, elements, and attributes. An element of type complexType is parent to all the elements and attributes contained within it. An any element in an XSD specifies that any well-formed XML is allowed in its place in XML instance.
What are the four default values of an attribute class 10?
What is complexType in XML?
What is parsed character data?
Parsed Character Data (PCDATA) is a data definition that originated in Standard Generalized Markup Language (SGML), and is used also in Extensible Markup Language (XML) Document Type Definition (DTD) to designate mixed content XML elements.
What types of values are added in XML?
The most common types are:
- xs:string.
- xs:decimal.
- xs:integer.
- xs:boolean.
- xs:date.
- xs:time.
What is the default value of a Boolean?
Default values are applied when you have an aggregate initializer that leaves some values unspecified. In that case, bool’s default would be false. In a class, the “default” value would be uninitialized, meaning it could be any value and could change from run to run.
Is there a Boolean type in C language?
There is no type named boolean in C but there is _Bool and in stdbool.h a macro bool that expands to _Bool. arr elements have an initial value of false (that is 0) if declared at file scope and indeterminate if declared at block scope.
Is there a way to set the value of a bool?
The reality is that you can’t do this. A bool has value, either true or false, and if you haven’t initialized it then it is randomly true or false, possibly different at each run of the program or allocation of that class. If you need to have a type with more options, define an enum.
Can Bool be initialized to true or false in C++?
I’m redesigning a class constructor in C++ and need it to catch an unspecified bool. I have used default values for all of the other parameters, but from my understanding bool can only be initialized to true or false.