DropDownList绑定Xml数据的实现

1 、绑定DropDownList：

    ddl_language.DataSource = createDataSource();
    ddl_language.DataTextField = "languageTextField";
    ddl_language.DataValueField = "languageValueField";
    ddl_language.DataBind();

2、上面用到的createDataSource()方法： 

           private ICollection createDataSource()

            {

                  //create a data table to store the data for the ddl_langauge control

                  DataTable dt = new DataTable();

 

                  //define the columns of the table

                  dt.Columns.Add("languageTextField",typeof(string));

                  dt.Columns.Add("languageValueField",typeof(string));

 

                  //read the content of the xml file into a DataSet

                  DataSet lanDS = new DataSet();

                  string filePath = ConfigurationSettings.AppSettings["LanguageXmlFile"];

                  lanDS.ReadXml(filePath);

 

                  if(lanDS.Tables.Count > 0)

                  {

                              foreach(DataRow copyRow in lanDS.Tables[0].Rows)

                              {

                                    dt.ImportRow(copyRow);

                            }

                  }

 

                  DataView dv = new DataView(dt);

 

                  return dv;

            }

3、Web.config

 

        <appSettings>

            <!--The file path for the language type xml file-->

            <addkey="LanguageXmlFile"value="d:\Rhombussolution\Rhombus2\Languages.xml"/>

</appSettings>

 4、Languages.xml 

<?xmlversion="1.0"encoding="utf-8"?>

<languageTypes>

   <language>

      <languageValueField>en-US</languageValueField>

      <languageTextField>English</languageTextField>

   </language>

   <language>

      <languageValueField>zh-CN</languageValueField>

      <languageTextField>中文</languageTextField>

   </language>

   <language>

      <languageValueField>ja-JP</languageValueField>

      <languageTextField>日语</languageTextField>

   </language>

</languageTypes>