Devexpress ASPxCallback client side e.Result undefined

问题

I call cb.PerformCallback(); it looks working correctly but I can not get the e.result. it alerts "undefined".

I can both see "started" and "ended" alerts.

ASPxCallback cb = new ASPxCallback(); 
cb.ID = cb.ClientInstanceName = "cb";
cb.ClientSideEvents.BeginCallback = @"function (s,e) { alert('started'); alert(e.result); }";
cb.ClientSideEvents.EndCallback = @"function (s,e) { alert('ended'); alert(e.result); }";

how can I get e.result?

回答1:

Take a look at this:

http://documentation.devexpress.com/#AspNet/DevExpressWebASPxCallbackScriptsASPxClientCallback_CallbackCompletetopic

http://documentation.devexpress.com/#AspNet/DevExpressWebASPxClassesScriptsASPxClientBeginCallbackEventArgsMembersTopicAll

http://documentation.devexpress.com/#AspNet/DevExpressWebASPxClassesScriptsASPxClientEndCallbackEventArgsMembersTopicAll

回答2:

Handle the ASPxClientCallback.CallbackComplete event instead and use the e.result property (take attention to the character case):

http://demos.devexpress.com/ASPxperienceDemos/Callback/Example.aspx

来源：https://stackoverflow.com/questions/7992815/devexpress-aspxcallback-client-side-e-result-undefined