C#用天气预报的WebServices

后台代码:

1. PRotectedvoidPage_Load(objectsender,EventArgse)
2. {
3. if(!IsPostBack)
4. {
5. WeatherWSws=newWeatherWS();
6. IList<string>provinceDataSource=newList<string>();
8. DataSetproDs=ws.getRegionDataset();
9. ddlProvince.DataSource=proDs.Tables[0].DefaultView;
10. ddlProvince.DataTextField="RegionName";
11. ddlProvince.DataValueField="RegionID";
12. ddlProvince.DataBind();
13. }
14. }
16. protectedvoidButton1_Click(objectsender,EventArgse)
17. {
19. WeatherWSws=newWeatherWS();
20. string[]wsInfo=ws.getWeather(ddlCity.SelectedValue,"");
21. stringresult=string.Empty;
22. for(inti=0;i<wsInfo.Length;i++)
23. {
24. result+=wsInfo[i]+"<BR/>";
25. }
26. Label1.Text=result;
28. }
30. protectedvoidddlProvince_SelectedIndexChanged(objectsender,EventArgse)
31. {
32. WeatherWSws=newWeatherWS();
33. DataSetcityDs=ws.getSupportCityDataset(ddlProvince.SelectedValue);
34. ddlCity.DataSource=cityDs.Tables[0].DefaultView;
35. ddlCity.DataTextField="CityName";
36. ddlCity.DataValueField="CityID";
37. ddlCity.DataBind();
38. }

.aspx代码

1. <asp:UpdatePanelID="UpdatePanel1"runat="server">
2. <ContentTemplate>
3. <asp:DropDownListID="ddlProvince"runat="server"AutoPostBack="True"
4. onselectedindexchanged="ddlProvince_SelectedIndexChanged">
5. </asp:DropDownList>
6. <asp:DropDownListID="ddlCity"runat="server">
7. </asp:DropDownList>
8. <asp:ButtonID="Button1"runat="server"onclick="Button1_Click"Text="Button"/>
9. <br/>
10. <br/>
11. <br/>
12. <asp:LabelID="Label1"runat="server"Text="Label"></asp:Label>
13. </ContentTemplate>
14. </asp:UpdatePanel>

访问速度很慢,,,...

第一步要添加Web引用

然后页面就有东西了.....webServices给的很明确了