典型webservice（c#）例程序-提取数据库数据

WebService.cs文件代码

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.Services;

using System.Data;

using System.Data.SqlClient;

/// <summary>

///WebService 的摘要说明

/// </summary>

[WebService(Namespace = "http://tempuri.org/")]

[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]

//若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消对下行的注释。

// [System.Web.Script.Services.ScriptService]

public class WebService : System.Web.Services.WebService {

    public WebService () {

        //如果使用设计的组件，请取消注释以下行

        //InitializeComponent();

    }

    [WebMethod]

    public string HelloWorld() {

        return "Hello World";

    }

      [WebMethod]

 

        public DataSet reader()

 

        {

            string connStr = "data source=dfsad7,1433;User ID=s;pwd=8;Initial Catalog=loDB2s";

            try

 

            {

 

                string sqlStr = "select * from admins";

 

                DataSet ds = new DataSet();

 

                SqlDataAdapter da = new SqlDataAdapter(sqlStr, new SqlConnection(connStr));

 

                da.Fill(ds);

 

                return ds;

 

            }

 

            catch (Exception exp)

 

            {

 

                return null;

 

            }

   

}

}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Data;

using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

        localhost.WebService svs = new localhost.WebService();

    

        DataSet ds = new DataSet();

        ds = svs.reader();

        this.GridView1.DataSource = ds.Tables[0];

        GridView1.DataBind();

     }

}