mcs/class/System.Web/Test/mainsoft/NunitWebResources/EventValidationTest2.aspx

   1 <%@ Page Language="C#"  %>
   2 <%@ Implements Interface="System.Web.UI.ICallbackEventHandler" %>
   3 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
   4
   5 <html xmlns="http://www.w3.org/1999/xhtml" >
   6 <script runat="server" >
   7
   8     string _eventName = "Fail";
   9     string _cbMessage = "";
  10     // Define method that processes the callbacks on server.
  11     public void RaiseCallbackEvent(String eventArgument)
  12     {
  13         try {
  14             this.ClientScript.ValidateEvent (_eventName, this.ToString ());
  15             _cbMessage = "Correct event raised callback.";
  16         }
  17         catch (Exception ex) {
  18             _cbMessage = "Incorrect event raised callback.";
  19         }
  20     }
  21
  22     // Define method that returns callback result.
  23     public string GetCallbackResult()
  24     {
  25         return _cbMessage;
  26     }
  27
  28     protected void Page_Load(object sender, EventArgs e)
  29     {
  30         if (!IsPostBack)
  31         {
  32             ClientScriptManager cs = Page.ClientScript;
  33             String cbReference = cs.GetCallbackEventReference ("'" +
  34                 Page.UniqueID + "'", "arg", "ReceiveServerData", "",
  35                 "ProcessCallBackError", false);
  36             String callbackScript = "function CallTheServer(arg, context) {" +
  37                 cbReference + "; }";
  38             cs.RegisterClientScriptBlock (this.GetType (), "CallTheServer",
  39                 callbackScript, true);
  40         }
  41     }
  42
  43
  44     protected override void Render(HtmlTextWriter writer)
  45     {
  46         this.ClientScript.RegisterForEventValidation("Test", this.ToString());
  47         base.Render(writer);
  48     }
  49
  50 </script>
  51
  52 <script type="text/javascript">
  53 var value1 = new Date();
  54 function ReceiveServerData(arg, context)
  55 {
  56     Message.innerText = arg;
  57     Label1.innerText = "Callback completed at " + value1;
  58     value1 = new Date();
  59 }
  60 function ProcessCallBackError(arg, context)
  61 {
  62     Message.innerText = 'An error has occurred.';
  63 }
  64 </script>
  65
  66 <html  >
  67 <head id="Head1" runat="server">
  68     <title>CallBack Event Validation Example</title>
  69 </head>
  70 <body>
  71     <form id="Form1" runat="server">
  72     <div>
  73       Callback result: <span id="Message"></span>
  74       <br /> <br />
  75       <input type="button"
  76              id="button1"
  77              runat="server"
  78              value="ClientCallBack"
  79              onclick="CallTheServer(value1, null )"/>
  80       <br /> <br />
  81       <asp:Label id="Label1" runat="server"/>
  82     </div>
  83     </form>
  84 </body>
  85 </html>