Xml comments add notes or lines for understanding the purpose of an xml code. The compiler checks that the given code element exists and passes member to the element name in the output xml. It can also be used to prevent execution when testing alternative code. Typically, the tag provides the description and contains the and. If you want angle brackets to appear in the text of a documentation comment, use the html encoding of which is respectively. This xml file can then be used to generate humanreadable documentation in a variety of forms including web pages, msdn style documentation and intellisense within the code window. I needed to get that string out of my xml and save it to a pdf file. An xml document is a basic unit of xml information composed of elements and other markup in an orderly package. Comments using such syntax are called documentation comments. Xml plays an important role in many different it systems. Dec 20, 2007 ive been struggling in matching xml comments to html help builders commenting features.
They are special because they can be processed by the compiler to generate an xml documentation file at compile time. Example xml data, xsl stylesheet and the resulting pdf are in data folder xml and xsl are courtesy of the xquery wikibook. Xml comments for example dont really have a good way to represent comment links that dont point a typesignature. You can generate the xml file at compile time by doing one of the following. Click on interface at the bottom to choose a product name reader or phantom, click on. Compile with doc to process documentation comments.
Compile with doc to process documentation comments to a file. Than you can look for something you can use to build the pdf. On the one hand, a comment may be a simple string encapsulated in a node of a physical tree. See how easy the code commenting with xml doc comments can be with powerful.
Comments occupy a curious place within the resharper ecosystem. Learn how to document your code with xml documentation comments. For information on how to create a cref reference to a generic type, see. Once submitted, your comments go through an approval process and your comments may ultimately be incorporated into cxml. Net provides via xml comments for imports some formats going the other way dont work. A pdf is a document to be read by humans, an xml is a structured data representation format.
Intellisense also reads these, and uses the contents to show the docs for your code in the assistance tooltips as you type and in the documentation window. Create a complete enduser manual with your own topics, such as overview, examples, license. You want to create an xml file for reader, but the title of xml editor appears as xml editor foxit phantompdf, you should change the interface to reader and vise versa. Xml can be used to exchange the information between organizations and systems. To create the final documentation based on the compilergenerated file, you can create a custom tool, or use a tool such as docfx or sandcastle. Net produces xml comments by taking specially marked and structured comments from within the code and building them into an xml file. Guidelines to better xml doc comments and documentation. It is used to describe and validate the structure and the content of xml data. The xml comments are used to build api documentation which is readable by external tools. To include code you either need to use the tag for code snippets or for multiline code examples. A number of xml comment tags appear in intellisense only as child elements of other tags.
You should apply the obsoleteattribute to the member and provide a description there. Comment can be used anywhere to add information about xml tags or data, which will be helpful for developers to understand the existing code in the future easily. Using a brand new tag each time you need to document a new member doesnt sit well with the overall philosophy of xml syntax and semantics but it works perfectly well. Export all or selected comments to an fdf or xfdf file, a word document, or an autocad file. It is important for all types of software developers. They must immediately precede a userdefined type such as a class, delegate, or interface or a member such as a field, event, property, or method. For example, database of numbers, numbers representing molecular structure or a mathematical equation. From the edit menu, choose intellisense insert comment. Each element starts with a start tag for example and ends with. The example you bring is more of writing comments to say that one writes comments rather than making others and theirs also life easier. Xml can be used to store and arrange the data, which can customize your data handling needs. Xml documentation comments are a special kind of comment, added above the definition of any userdefined type or member. It is similar to a database schema that describes the data in a database.
The syntax for writing comments in xml is similar to the syntax of writing comments in html. Provide a context menu to update the comments for the functionsto be added. If you just want to see an example, type in exampleocroutput. Continuing the theme started in my last post, massachusetts recently ratified a digital document standard that excludes technology backed by the maker of the dominant office. Continuing the theme started in my last post, massachusetts recently ratified a digital document standard that excludes technology backed by. Personally, i use both, for various situations in the end, its all up to you. Any text between and the end of the line is ignored by the compiler will not be executed. Xml can be used for offloading and reloading of databases. Use to indicate that text within a description should be marked as code.
Comments may not appear before the xml declaration. C sharp programming this book is generated by wikitype using renderx ditype, xml to pdf xslfo formatter. On the other hand, a comment preceding a method consist of valid xml that is subsequently represented as a. Kompilieren sie mit doc, um dokumentationskommentare zu einer datei zu verarbeiten. Jan 10, 2012 i needed to get that string out of my xml and save it to a pdf file. So, i created a proof of conceptpoc in order to see if i could convert and create a valid pdf. The viewer shows up and you can now enter the file name of your file to load it must be relative to the directory in which pdf2xmlviewer resides. Place your text cursor above the element you want to document, for example, a method.
Variations on this idea include generating pdf, rtf, or even microsoft word documents. Xml schema is commonly known as xml schema definition xsd. The following image depicts the parts of xml document. The comments are added as notes or lines for understanding the purpose of an xml code. How to decode a base64string in xml to be a pdf file. The xml documentation facility is built into all visual studio versions, including express.
We know that the comments are used to make codes more understandable other developers. Documenting your code with xml comments microsoft docs. For example, to see example 1, type this url in your browsers address bar assuming that exist is installed locally. When a member is deprecated, this fact should be mentioned in documentation. While html help builder can do just fine with what. Xml is often used for distributing data over the internet. Dec, 2019 renderx provides examples of pdf documents with source data xml, xslt, xslfo to help you in evaluation of formatting tools and assist in development. The examples will be uploaded to an exist xml database in a collection called htmland pdf singlestylesheet located in the root collection of exist, so you can view each example in your browser. However, the article does not explain how the contained phrases and sentences should be written. Comments can be used to include related links, information, and terms. Traverse direct children via firstchild nextsibling, or lastchild previoussibling. Doxygen or sandcastle help file builder are the primary tools that will extract xml documentation into html and other forms of external. Although xml is known as selfdescribing data but sometimes xml comments are necessary.
The documentation contains one or more documentation elements. However, you dont need to put this info in your xml comments. The documentationsample type demonstrates code comments. Xml schema defines the elements, attributes and data types. Ive been struggling in matching xml comments to html help builders commenting features. Although xml is supposed to be selfdescribing data, you may still come across some instances where an xml comment might be necessary.
If you are developing an application using visual studio, rightclick on. From the rightclick or context menu on or just above the code element, choose snippet. After opening the xml file on your computer, click the print button in the whichever program you used to open the file. Xml comments have the exact same syntax as html comments. This chapter explains how comments work in xml documents. Click on interface at the bottom to choose a product name reader or phantom, click on confirm and then yes to switch the interface. I knew the xml was originally in a pdf format because of where the source that was sending me the file. Some constrains govern where comments may be placed with an xml file. Now you browse through the pages of your pdf document and youll see the text boxes with red frames. In visual basic, it is possible to extend the xml comment template with additional. The c tag gives you a way to indicate that text within a description should be marked as code.
These tags, known as childcompletionlist tags, are. Youll need to select wondershare pdfelement as the printer option. After printing your file to pdf, it will automatically be opened in pdfelement. See the sandcastle wall chart pdf for full details. You are welcome to use and adopt this standard, and to submit comments, recommendations, and suggestions to. The following example generates an xml file in the project directory with the same. Follow these steps to import comments from sources such as a pdf document, a form data format fdf file, or an xmlbased fdf xfdf file. Xml can work behind the scene to simplify the creation of html documents for large web sites. Insert pdf as base64 into xml, then extract back to pdf file. Xml was designed to be both human and machinereadable. Dont put obsolete info directly in xml comments, use obsoleteattribute. Copy the function comments to the implementation fileto be added.
This article tries to fill this gap by providing rules and some sample phrases. To include the xml comments for other methods you would write another tag at the appropriate place and change the path to pick out say mydocsmember2 and so on. Take advantage of xml comments part 1 visual studio magazine. Publishing xml data in html and pdf using a single xslt. Csharp documenting your code with xml comments awesome. Documentation comments sometimes referred to as xml. In source code files, comments having a certain form can be used to direct a tool to produce xml from those comments and the source code elements, which they precede. Singleline comments start with two forward slashes. A reference to a member or field that is available to be called from the current compilation environment. On the other hand, a comment preceding a method consist of valid xml that is subsequently represented as a proper data structure.
571 1374 1436 294 114 351 548 673 1490 1074 1201 1178 949 842 1451 776 1541 643 716 1565 301 761 1007 534 500 1537 1246 1 38 688 490 1491 553 1433 1473 1178 98 159 1385 1300 426 773 520 1036