Xml notepad deutsch10/26/2022 ![]() ![]() This means that the child elements must appear in the same order as they are declared. Note that the child elements, " firstname" and " lastname", are surrounded by the < sequence> indicator. The " employee" element can be declared directly by naming the element, like this: < xs:element name=" employee" > < xs:complexType> < xs:sequence> < xs:element name=" firstname" type=" xs:string" /> < xs:element name=" lastname" type=" xs:string" /> < /xs:sequence> < /xs:complexType> < /xs:element> If you use the method described above, only the " employee" element can use the specified complex type. #Xml notepad deutsch how to#< /description> How to Define a Complex Element Look at this complex XML element, " employee", which contains only other elements: < employee> < firstname> John< /firstname> < lastname> Smith< /lastname> < /employee> We can define a complex element in an XML Schema two different ways: 1. There are four kinds of complex elements: empty elements elements that contain only other elements elements that contain only text elements that contain both other elements and text Examples of Complex Elements A complex XML element, " product", which is empty: < product pid=" 1345" /> A complex XML element, " employee", which contains only other elements: < employee> < firstname> John< /firstname> < lastname> Smith< /lastname> < /employee> A complex XML element, " food", which contains only text: < food type=" dessert" > Ice cream< /food> A complex XML element, " description", which contains both elements and text: < description> It happened on < date lang=" norwegian" > 03.03.99< /date>. In the following example the fixed value is " red" : < xs:element name=" color" type=" xs:string" fixed=" red" /> A complex element is an XML element that contains other elements and/or attributes. In the following example the default value is " red" : < xs:element name=" color" type=" xs:string" default=" red" /> A fixed value is also automatically assigned to the element, and you cannot specify another value. A default value is automatically assigned to the element when no other value is specified. The most common types are: xs:string xs:decimal xs:integer xs:boolean xs:date xs:time Example Here are some XML elements: < lastname> Refsnes< /lastname> < age> 36< /age> < dateborn> < /dateborn> And here are the corresponding simple element definitions: < xs:element name=" lastname" type=" xs:string" /> < xs:element name=" age" type=" xs:integer" /> < xs:element name=" dateborn" type=" xs:date" /> Simple elements may have a default value OR a fixed value specified. XML Schema has a lot of built-in data types. The syntax for defining a simple element is: < xs:element name=" xxx" type=" yyy" /> where xxx is the name of the element and yyy is the data type of the element. You can also add restrictions (facets) to a data type in order to limit its content, or you can require the data to match a specific pattern. ![]() It can be one of the types included in the XML Schema definition (boolean, string, date, etc.), or it can be a custom type that you can define yourself. However, the " only text" restriction is quite misleading. It cannot contain any other elements or attributes. Simple element is an XML element that can contain only text. < ?xml version=" 1.0" encoding=" UTF-16" ?> will give an error message.XML document is easy to create and validate.XML document contains elements and attributes.DTD can be defined in XML in second line.Elements and attributes should be described in DTD in order they used in.The value of age cannot be lower than 0 or greater than 120: The following example defines an element called "age" with a restriction.If the attribute value itself contains single quotes it is necessary.If the attribute value itself contains double quotes it is necessary.Attribute values must always be enclosed in quotes.XML elements have the different content type.XML elements are related as parents and children.All XML documents must be properly nested.All XML documents must have closing a tag.XML declaration (standart and encoding).XML uses a Document Type Definition (DTD) or an.Is a standart for EXtensible Markup Language. ![]()
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