using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; public partial class View : System.Web.UI.Page, ICallbackEventHandler { privatestring CallBackValue =string.Empty; ClassData MyClass =new ClassData(); protectedvoid Page_Load(object sender, EventArgs e) { } string ICallbackEventHandler.GetCallbackResult() { DataSet _DS = MyClass.ExecDs("select top 10 from table ", "table "); return _DS.GetXml(); } void ICallbackEventHandler.RaiseCallbackEvent(string eventArgument) { this.CallBackValue = eventArgument; } }