.net ria services 自定义函数(9)
很多时候我们可能十分希望自定义一些方法可以让sl端直接调用,对SOA的设计思想,这个是十分有作用的,因为一个函数就完成一个功能,这是SOA最常见不过的设计。这里我将讲述一下.net ria services在sl应用中如何自定义函数.
1.在.net ria service端先定义一个方法,并返回一个自定义的类,这个类必须有主键,可以通过“[Key]”标识一个字段为主键。并把此函数用“[ServiceOperation]”标识,这样sliverlgiht端才会出来这个函数。
1: [EnableClientAccess()]
2: public class myDomainService : DomainService
3: {
4: [ServiceOperation]
5: public myclass myText(string userId)
6: {
7: myclass mc = new myclass();
8: mc.userid = userId;
9: mc.input = userId;
10: return mc;
11: }
12: }
13:
14: public class myclass
15: {
16: [Key]
17: public string userid { get; set; }
18: public string input { get; set; }
19: }
2.调用相当简单,以下是silverlight端的调用代码
1: public Home()
2: {
3: InitializeComponent();
4: Business.Web.Services.myDomainContext md = new Business.Web.Services.myDomainContext();
5: var c = md.myText("FunSL.com");
6: c.Completed += new EventHandler(c_Completed);
7: }
8:
9: void c_Completed(object sender, EventArgs e)
10: {
11: var b = (System.Windows.Ria.Data.InvokeOperation<Business.Web.Services.myclass>)sender;
12: Business.Web.Services.myclass mc = (Business.Web.Services.myclass)b.Value;
13: MessageBox.Show(mc.userid + ";" + mc.input);
14: }