AjaxControlToolkit 控件
新建服务 WebService
WebService.cs
using System;
using System.Web;
using System.Collections;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Web.Script.Services;
using System.Collections.Generic;
using System.Collections.Specialized;
using AjaxControlToolkit;
using System.Data.SqlClient;
using System.Data;
/// <summary>
/// SNWebService 的摘要说明
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[ScriptService]
public class SNWebService : System.Web.Services.WebService
{
public SNWebService()
{
//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>
[WebMethod]
public CascadingDropDownNameValue[] GetProvinceContents(string knownCategoryValues, string category)
{
List<CascadingDropDownNameValue> provinceList = new List<CascadingDropDownNameValue>();
string connectionString = System.Configuration.ConfigurationManager.AppSettings["ConnectionString"];
SqlConnection sqlConn = new SqlConnection(connectionString);
sqlConn.Open();
string strSql = "Select * From Province";
SqlCommand sqlCmd = new SqlCommand(strSql, sqlConn);
SqlDataReader dtrProvince = sqlCmd.ExecuteReader();
while (dtrProvince.Read())
{
provinceList.Add(new CascadingDropDownNameValue(dtrProvince["Name"].ToString(),dtrProvince["Code"].ToString()));
}
dtrProvince.Close();
sqlConn.Close();
return provinceList.ToArray();
}
/// <summary>
/// 获取市数据
/// </summary>
/// <param name="knownCategoryValues"></param>
/// <param name="category"></param>
/// <returns></returns>
[WebMethod]
public CascadingDropDownNameValue[] GetCityContents(string knownCategoryValues, string category)
{
StringDictionary provinceList = CascadingDropDown.ParseKnownCategoryValuesString(knownCategoryValues);
string connectionString = System.Configuration.ConfigurationManager.AppSettings["ConnectionString"];
SqlConnection sqlConn = new SqlConnection(connectionString);
sqlConn.Open();
string strSql = "Select * From city Where ProvinceId='" + provinceList["Province"] + "'";
SqlCommand sqlCmd = new SqlCommand(strSql, sqlConn);
SqlDataReader dtrCity = sqlCmd.ExecuteReader();
List<CascadingDropDownNameValue> cityList = new List<CascadingDropDownNameValue>();
while (dtrCity.Read())
{
cityList.Add(new CascadingDropDownNameValue(dtrCity["Name"].ToString(), dtrCity["code"].ToString()));
}
dtrCity.Close();
return cityList.ToArray();
}
/// <summary>
/// 获取乡镇数据
/// </summary>
/// <param name="knownCategoryValues"></param>
/// <param name="category"></param>
/// <returns></returns>
[WebMethod]
public CascadingDropDownNameValue[] GetViliageContents(string knownCategoryValues, string category)
{
StringDictionary cityList = CascadingDropDown.ParseKnownCategoryValuesString(knownCategoryValues);
string connectionString = System.Configuration.ConfigurationManager.AppSettings["ConnectionString"];
SqlConnection sqlConn = new SqlConnection(connectionString);
sqlConn.Open();
string strSql = "Select * From area Where CityId='" + cityList["City"] + "'";
SqlCommand sqlCmd = new SqlCommand(strSql, sqlConn);
SqlDataReader dtrViliage = sqlCmd.ExecuteReader();
List<CascadingDropDownNameValue> viliageList = new List<CascadingDropDownNameValue>();
while (dtrViliage.Read())
{
viliageList.Add(new CascadingDropDownNameValue(dtrViliage["Name"].ToString(), dtrViliage["id"].ToString()));
}
dtrViliage.Close();
return viliageList.ToArray();
}
}