This section demonstrates how to create an application for < AppML > through the following four simple steps.

The next chapter will show you how to download < AppML > and start developing Web applications on your own computer.

4.2.1. 1.创建模型（Model）

Create a file using the following

<appml>

<datasource>
<database>
  <connection>Democonnection>
  <sql>SELECT CustomerName,ContactName,City,Country FROM Customerssql>
  <orderby>CustomerNameorderby>
database>
datasource>

<filters>
  <query>
  <field>CustomerNamefield>
  query>
filters>

appml>
   
 Models (we recommend) save the file as Customers.xml in the subdirectory. 
 
 
 Model analysis  
 
 The < appml > tag defines the model. 
 
 The < datasource > tag defines the data source for the model. 
 
 The < database > tag defines the database. 
 
 The < connection > tag defines the link to the database. 
 
 < sql > tag definition data query 
 
 The < orderby > tag defines the default sort. 
 
 The < query > tag defines a legal query filter. 
 
  
 
  4.2.2.  two。 Create a WEB page  
 
 In the first < AppML > app, create a HTML page: 
 
 
 Example  
 
 
 





My First Web Application






  Customer
  City
  Country




  Alfreds Futterkiste
  Berlin
  Germany








 
 
 
  尝试一下 »  
 
 
 
 
  4.2.3.  3. Add Styl  
 
 Add cascading styles to your web page when executing e < AppML > app: 
 
 
 Example  
 
 
 









My First Web Application






  Customer
  City
  Country




  Alfreds Futterkiste
  Berlin
  Germany








 
 
 
  尝试一下 »  
 
 
 
 
  4.2.4.  4. Add a script and then execute the application  
 
 Add a script to your web page to run < AppML > app: 
 
 Example 
 
 
 









My First Web Application









  Customer
  City
  Country




  #CustomerName#
  #City#
  #Country#













 
 
 
  尝试一下 »  
 
 
 
  4.2.5.  Case analysis  
 
 The < AppML > library contains a large number of functions. These functions can be called from your web page.