一段完整的Silverlight演示代码[Web service]
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
namespace SilverlightInterview.Web
{
/// <summary>
/// StockService 的摘要说明
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
// 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 StockService : System.Web.Services.WebService
{
[WebMethod]
public string GetStock()
{
string[] stocks = { "万科","深发展","茅台","方欣科技","微软","联想科技"};
Random r = new Random();
string strTemp;
string strReturn = @"<body>";
for (int i = 0; i < stocks.Length; i++)
{
strTemp = "<stock>";
strTemp += "<name>" + stocks[i] + "</name>";
strTemp += "<value>" + (int)(r.NextDouble() * 70 + 30) + "</value>";
strTemp += "<time>"+ System.DateTime.Now.ToString() +"</time>";
strTemp += "</stock>";
strReturn += strTemp;
}
strReturn += "</body>";
return strReturn;
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Data.SqlClient;
namespace SilverlightInterview.Web
{
/// <summary>
/// DataService 的摘要说明
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
// 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 DataService : System.Web.Services.WebService
{
string dbconn = "Server=WANGXIN;Database=Interview;Trusted_Connection=True";
[WebMethod]
public int AddNote(string topic, string remark)
{
string strSql = "";
SqlConnection connection = new SqlConnection(dbconn);
connection.Open();
try
{
strSql = "insert into Ft_Note (topic,remark) values ('" + topic + "','" + remark + "')";
SqlCommand cmd = new SqlCommand(strSql);
cmd.Connection = connection;
return cmd.ExecuteNonQuery();
}
catch (Exception ex)
{
throw ex;
}
finally
{
connection.Close();
}
}
[WebMethod]
public int DelByID(string id)
{
string strSql = "";
SqlConnection connection = new SqlConnection(dbconn);
connection.Open();
try
{
strSql = "delete from Ft_Note where id="+id ;
SqlCommand cmd = new SqlCommand(strSql);
cmd.Connection = connection;
return cmd.ExecuteNonQuery();
}
catch (Exception ex)
{
throw ex;
}
finally
{
connection.Close();
}
}
[WebMethod]
public List<Note> GetNotesByTopic(string topic)
{
string strSql = "";
SqlConnection connection = new SqlConnection(dbconn);
connection.Open();
try
{
List<Note> notes = new List<Note>();
if (topic == "*")
{
strSql = "select id,topic,remark from Ft_Note ";
}
else
{
strSql = "select id,topic,remark from Ft_Note where topic='"+topic+"' ";
}
SqlCommand com = connection.CreateCommand();
com.CommandText = strSql;
com.CommandType = System.Data.CommandType.Text;
SqlDataReader dr = com.ExecuteReader(System.Data.CommandBehavior.Default);
while (dr.Read())
{
Note temp = new Note();
temp.ID = dr[0].ToString();
temp.Topic = dr[1].ToString();
temp.Remark = dr[2].ToString();
notes.Add(temp);
}
return notes;
}
catch (Exception ex)
{
throw ex;
}
finally
{
connection.Close();
}
}
}
}