WebServices of the weather forecast for C #

Background code:

2. protected void Page_Load (object sender, EventArgs e)
4. {
6. if (! IsPostBack)
8. {
10. Weatherws ws = new Weatherws ();
12. ilist<string> provincedatasource = new list<string> ();
16. DataSet prods = Ws.getregiondataset ();
18. Ddlprovince.datasource = Prods.tables[0]. DefaultView;
20. Ddlprovince.datatextfield = "Regionname";
22. Ddlprovince.datavaluefield = "RegionID";
24. Ddlprovince.databind ();
26. }
28. }
32. protected void button1_click (object sender, EventArgs e)
34. {
38. Weatherws ws = new Weatherws ();
40. string [] Wsinfo = Ws.getweather (Ddlcity.selectedvalue,"");
42. string result = string.  Empty;
44. For (int i = 0; i < wsinfo.length; i++)
46. {
48. Result + = wsinfo[i]+"<BR/>";
50. }
52. Label1.Text = result;
56. }
60. protected void ddlprovince_selectedindexchanged (object sender, EventArgs e)
62. {
64. Weatherws ws = new Weatherws ();
66. DataSet cityds = Ws.getsupportcitydataset (Ddlprovince.selectedvalue);
68. Ddlcity.datasource = Cityds.tables[0]. DefaultView;
70. Ddlcity.datatextfield = "CityName";
72. Ddlcity.datavaluefield = "Cityid";
74. Ddlcity.databind ();
76. }

. aspx code

2. <asp:updatepanel id="UpdatePanel1" runat= "Server" >
4. <ContentTemplate>
6. <asp:dropdownlist id="ddlprovince" runat="server" autopostback="True"
8. onselectedindexchanged="ddlprovince_selectedindexchanged" >
10. </asp:DropDownList>
12. <asp:dropdownlist id="ddlcity" runat= "Server" >
14. </asp:DropDownList>
16. <asp:button id="Button1" runat="server" onclick="Button1_Click" text="button"/>
18. <br/>
20. <br/>
22. <br/>
24. <asp:label id="Label1" runat="server" text="Label" ></asp:Label>
26. </ContentTemplate>
28. </asp:UpdatePanel>

Access is slow,,,...

The first step is to add a Web reference

And then there's something on the page ... webservices gave it to me very clearly.

WebServices of the weather forecast for C #