Web Service简单例子

转：

http://blog.csdn.net/greatverve/archive/2009/03/13/3988775.aspx
http://book.51cto.com/art/200906/129728.htm


WebService1.asmx

using System;
using System.Web;
using System.Collections;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Data;


/// <summary>
/// WebService1 的摘要说明
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
public class WebService1 : System.Web.Services.WebService
{

    public WebService1()
    {

        //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 System.Data.DataTable GetDT() 
    {
        DataTable dt = new DataTable();
        dt.TableName = "Accounts";
        dt.Columns.Add("id");
        dt.Columns.Add("name");
        for (int i = 0; i < 10; i++)
        {
            DataRow dr = dt.NewRow();
            dr["id"] = i.ToString();
            dr["name"] = "name" + i.ToString();
            dt.Rows.Add(dr);
        }
        return dt;

    } 
    [WebMethod] 
    public System.Data.DataSet GetDS() 
    {
        DataSet ds = new DataSet();
        DataTable dt = new DataTable();
        dt.TableName = "Accounts";
        dt.Columns.Add("id");
        dt.Columns.Add("name");
        for (int i = 0; i < 10; i++)
        {
            DataRow dr = dt.NewRow();
            dr["id"] = i.ToString();
            dr["name"] = "name" + i.ToString();
            dt.Rows.Add(dr);
        }
        ds.Tables.Add(dt);
        return ds;
    } 
}
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添加Web Service引用。在项目上单击鼠标右键，在弹出的快捷菜单中选择"添加Web 引用"命令，如图7-6所示，弹出"添加Web引用"对话框

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using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class test6 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
       if (!IsPostBack) 
            Bind(); 
    }
     private void Bind() 
     {
         localhost.WebService1 service = new localhost.WebService1();
         this.GridView1.DataSource = service.GetDS();
        //不成熟的理解:DataTable无法序列化,不可以通过web service传递 
        //this.gvShow.DataSource = service.GetDT(); 
        this.GridView1.DataBind();

        Response.Write(service.HelloWorld());
    } 
}