Resolve #162

AjaxControlToolkit.Jasmine/Suites/UpdatePanelAnimationTests.aspx

@@ -39,6 +39,47 @@
         </Animations>
     </act:UpdatePanelAnimationExtender>
 
+    <asp:DropDownList
+        ID="TestDropDownList"
+        runat="server"
+        AutoPostBack="True">
+        <asp:ListItem>1</asp:ListItem>
+        <asp:ListItem>2</asp:ListItem>
+        <asp:ListItem>3</asp:ListItem>
+    </asp:DropDownList>
+
+    <asp:UpdatePanel
+        ID="UpdatePanelWithButton"
+        runat="server">
+        <ContentTemplate>
+          Content
+          <asp:Button runat="server" Text="Button" />
+        </ContentTemplate>
+        <Triggers>
+          <asp:AsyncPostBackTrigger ControlID="TestDropDownList" EventName="SelectedIndexChanged" />
+        </Triggers>
+    </asp:UpdatePanel>
+
+    <act:UpdatePanelAnimationExtender
+        ID="UpdatePanelWithButtonExtender"
+        runat="server"
+        TargetControlID="UpdatePanelWithButton"
+        AlwaysFinishOnUpdatingAnimation="true"
+        BehaviorID="animation2">
+        <Animations>
+            <OnUpdating>
+            <Parallel duration="0">
+                <ScriptAction Script="onUpdating();" />
+                </Parallel>
+            </OnUpdating>
+            <OnUpdated>
+            <Parallel duration="0">
+                <ScriptAction Script="onUpdated();" />
+            </Parallel>
+            </OnUpdated>
+        </Animations>
+    </act:UpdatePanelAnimationExtender>
+
     <script>
         function onUpdating() {
         }
@@ -50,12 +91,14 @@
 
             var BUTTON_TRIGGER_CLIENT_ID = "<%= btnTrigger.ClientID %>";
             var BUTTON_NON_TRIGGER_CLIENT_ID = "<%= btnNonTrigger.ClientID %>";
+            var DROPDOWNLIST_CLIENT_ID = "<%= TestDropDownList.ClientID %>";
+            var playSpy;
 
             describe("Postback", function() {
 
                 beforeEach(function() {
                     this.extender = $find("animation");
-                    spyOn(this.extender._onUpdating.__proto__, 'play');
+                    playSpy = spyOn(this.extender._onUpdating.__proto__, 'play');
                     spyOn(window, 'onUpdating');
                     spyOn(window, 'onUpdated');
                 });
@@ -74,6 +117,17 @@
                     $("#" + BUTTON_TRIGGER_CLIENT_ID).click();
                     expect(this.extender._onUpdated.__proto__.play).toHaveBeenCalled();
                 });
+
+                it("is updated by DropDownList", function (done) {
+                    $("#" + DROPDOWNLIST_CLIENT_ID)
+                        .val("2")
+                        .trigger('change');
+
+                    waitFor(
+                        function () {
+                            return playSpy.calls.any();
+                        }, done);
+                });
             });
         });
     </script>

AjaxControlToolkit/Scripts/UpdatePanelAnimation.js

@@ -68,7 +68,7 @@ Sys.Extended.UI.Animation.UpdatePanelAnimationBehavior.prototype = {
 
         if(!this._postBackPending) {
             if(this._triggerControlsClientID.length == 0
-                || this._triggerControlsClientID.indexOf(sender._activeElement.id) != -1)
+                || this._triggerControlsClientID.indexOf(beginRequestEventArgs._postBackElement.id) != -1)
             {
                 this._postBackPending = true;
                 this._onUpdated.quit();