Ajax WebService 省级联动

AjaxControlToolkit  控件

新建服务 WebService

WebService.cs

using using using using using using using using using using using /// <summary>
/// SNWebService 的摘要说明
/// </summary>
WebService"http://tempuri.org/"WebServiceBindingWsiProfilesScriptService
public class SNWebService WebService
public //如果使用设计的组件，请取消注释以下行 
        //InitializeComponent(); 
    /// <summary>
    /// 获取省份数据
    /// </summary>
    /// <param name="knownCategoryValues"></param>
    /// <param name="category"></param>
    /// <returns></returns>
    WebMethodpublic CascadingDropDownNameValuestring string ListCascadingDropDownNameValuenew ListCascadingDropDownNameValuestring ConfigurationManager"ConnectionString"SqlConnection new SqlConnectionstring "Select * From Province"SqlCommand new SqlCommandSqlDataReader while new CascadingDropDownNameValue"Name""Code"return /// <summary>
    /// 获取市数据
    /// </summary>
    /// <param name="knownCategoryValues"></param>
    /// <param name="category"></param>
    /// <returns></returns>
    WebMethodpublic CascadingDropDownNameValuestring string StringDictionary CascadingDropDownstring ConfigurationManager"ConnectionString"SqlConnection new SqlConnectionstring "Select * From city Where ProvinceId='" "Province""'"SqlCommand new SqlCommandSqlDataReader ListCascadingDropDownNameValuenew ListCascadingDropDownNameValuewhile new CascadingDropDownNameValue"Name""code"return /// <summary>
    /// 获取乡镇数据
    /// </summary>
    /// <param name="knownCategoryValues"></param>
    /// <param name="category"></param>
    /// <returns></returns>
    WebMethodpublic CascadingDropDownNameValuestring string StringDictionary CascadingDropDownstring ConfigurationManager"ConnectionString"SqlConnection new SqlConnectionstring "Select * From area Where CityId='" "City""'"SqlCommand new SqlCommandSqlDataReader ListCascadingDropDownNameValuenew ListCascadingDropDownNameValuewhile new CascadingDropDownNameValue"Name""id"return 

}

本文转自曾祥展博客园博客，原文链接：http://www.cnblogs.com/zengxiangzhan/archive/2009/11/06/1597484.html，如需转载请自行联系原作者