javascript - Update Panel AsyncPostback Trigger not working in IE - Stack Overflow

In my application the AsyncPostback trigger of update panel is not working in IE 9 and IE 10 but working in IE 8 and postbacktrigger is also working in all IE version.

This give error

Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed.

I have tried several thing before posting this issue :

• async = true in page tag
• registering the postback on page load (this cannot be used as update panel is throughout the system)
• allowing async in web config

<asp:UpdatePanel runat="server">
                                   <ContentTemplate>
                                       <cc:BinNumberMultiDropDown runat="server" TabIndex="3"    ProgramTrue="true" ID="ddl_bin_number"
                                           CssClass="multiselect">
                                       </cc:BinNumberMultiDropDown>
                                       <asp:RequiredFieldValidator ID="rfv_ddl_bin_number" runat="server"    ControlToValidate="ddl_bin_number" ValidationGroup="vg_rate"    Display="Dynamic"
                                           SetFocusOnError="true"></asp:RequiredFieldValidator>
                                   </ContentTemplate>
                                   <Triggers>
                                       <asp:AsyncPostBackTrigger ControlID="ddl_program" EventName="SelectedIndexChanged" />
                                   </Triggers>
                               </asp:UpdatePanel>

Please suggest me with the solution

I also found that this error is appearing only in Winodws 8 systems

In my application the AsyncPostback trigger of update panel is not working in IE 9 and IE 10 but working in IE 8 and postbacktrigger is also working in all IE version.

This give error

Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed.

I have tried several thing before posting this issue :

• async = true in page tag
• registering the postback on page load (this cannot be used as update panel is throughout the system)
• allowing async in web config

<asp:UpdatePanel runat="server">
                                   <ContentTemplate>
                                       <cc:BinNumberMultiDropDown runat="server" TabIndex="3"    ProgramTrue="true" ID="ddl_bin_number"
                                           CssClass="multiselect">
                                       </cc:BinNumberMultiDropDown>
                                       <asp:RequiredFieldValidator ID="rfv_ddl_bin_number" runat="server"    ControlToValidate="ddl_bin_number" ValidationGroup="vg_rate"    Display="Dynamic"
                                           SetFocusOnError="true"></asp:RequiredFieldValidator>
                                   </ContentTemplate>
                                   <Triggers>
                                       <asp:AsyncPostBackTrigger ControlID="ddl_program" EventName="SelectedIndexChanged" />
                                   </Triggers>
                               </asp:UpdatePanel>

Please suggest me with the solution

I also found that this error is appearing only in Winodws 8 systems

• javascript
• asp
• windows
• internet-explorer
• updatepanel

Share Improve this question Follow edited Dec 18, 2013 at 4:15 Arjun Sharma asked Dec 11, 2013 at 4:38 Arjun SharmaArjun Sharma 59522 gold badges99 silver badges2323 bronze badges 4

• can you post your code sample ? – SpiderCode Commented Dec 11, 2013 at 4:44
• where is your ddl_program ? is it dropdown outside the update panel ? – SpiderCode Commented Dec 11, 2013 at 5:13
• its outside the update panel – Arjun Sharma Commented Dec 11, 2013 at 5:32
• Is there any ajax/xhr request raised from browser? If so what is response when AsyncPostback doesn't works? – Pranav Singh Commented Dec 19, 2013 at 9:22

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5 Answers 5

Sorted by: Reset to default 1

<asp:UpdatePanel ID="MainContainerUpdatePanel" ChildrenAsTriggers="false" UpdateMode="Conditional" runat="server">

Check that your browser definition files are updated on the server, there are a number of problems related to javascript postback handling that are caused by .Net incorrectly detecting new versions of IE. There are a number of hotfix patches to update the files, see Scott Hanselmann's blog for further details :

http://www.hanselman./blog/IE10AndIE11AndWindows81AndDoPostBack.aspx

and

http://www.hanselman./blog/BugAndFixASPNETFailsToDetectIE10CausingDoPostBackIsUndefinedjavascriptErrorOrMaintainFF5ScrollbarPosition.asp

I was facing same issue. I analysed the cause & find many good post about the cause of problem & how to resolve it. One of them is found on Eilon Lipton's blog:

Why do I keeping getting a PageRequestManagerParserErrorException?

Well, chances are you're doing one of the things mentioned in the error message. Here are the most mon reasons and why they don't work:

1.Calls to Response.Write():

By calling Response.Write() directly you are bypassing the normal rendering mechanism of ASP.NET controls. The bits you write are going straight out to the client without further processing (well, mostly...). This means that UpdatePanel can't encode the data in its special format.

2.Response filters:

Similar to Response.Write(), response filters can change the rendering in such a way that the UpdatePanel won't know.

3.HttpModules: Again, the same deal as Response.Write() and response filters.

4.Server trace is enabled: If I were going to implement trace again, I'd do it differently. Trace is effectively written out using Response.Write(), and as such messes up the special format that we use for UpdatePanel.

5. Calls to Server.Transfer(): Unfortunately, there's no way to detect that Server.Transfer() was called. This means that UpdatePanel can't do anything intelligent when someone calls Server.Transfer(). The response sent back to the client is the HTML markup from the page to which you transferred. Since its HTML and not the special format, it can't be parsed, and you get the error. How do I avoid getting a PageRequestManagerParserErrorException?

To start with, don't do anything from the preceding list! Here's a matching list of how to avoid a given error (when possible):

Calls to Response.Write(): Place an <asp:Label> or similar control on your page and set its Text property. The added benefit is that your pages will be valid HTML. When using Response.Write() you typically end up with pages that contain invalid markup.

Response filters: The fix might just be to not use the filter. They're not used very often anyway. If possible, filter things at the control level and not at the response level.

HttpModules: Same as response filters.

Server trace is enabled: Use some other form of tracing, such as writing to a log file, the Windows event log, or a custom mechanism.

Calls to Server.Transfer(): I'm not really sure why people use Server.Transfer() at all. Perhaps it's a legacy thing from Classic ASP. I'd suggest using Response.Redirect() with query string parameters or cross-page posting.

Another way to avoid the parse error is to do a regular postback instead of an asynchronous postback. For example, if you have a button that absolutely must do a Server.Transfer(), make it do regular postbacks. There are a number of ways of doing this:

• The easiest is to simply place the button outside of any UpdatePanels. Unfortunately the layout of your page might not allow for this.
• Add a PostBackTrigger to your UpdatePanel that points at the button. This works great if the button is declared statically through markup on the page.
• Call ScriptManager.RegisterPostBackControl() and pass in the button in question. This is the best solution for controls that are added dynamically, such as those inside a repeating template.

I think you are using framework 4.0, there is some issues in framework 4.0 with windows 8, if possible you can try with converting you application in framework 4.5.

protected void Page_Load(object sender, EventArgs e) {
  ScriptManager scriptManager = ScriptManager.GetCurrent(this.Page);
  scriptManager.RegisterPostBackControl(btn.Your-BUTTON-HERE');
  //Further code goes here....
}

Put this and it will work or if you have multiple update panels ? let us know