September 17, 2018

jQuery AJAX failed calling ASP.NET WebMethods

Recently I migrated all code files from ASP.NET Web Application to ASP.NET WebSite (with Framework 4.5.2), because of some requirements we need to move towards website template. At the time I faced this issue, all the ajax calls stopped working. When I placed breakpoint on WebMethod, It was not getting fired.

Here is the WebMethod code:


[WebMethod(EnableSession = true)]
public static string GetPageSummary(string pageid)
{
 string html = "";

 if (!string.IsNullOrEmpty(pageid))
 {
  html = PageHelper.GetPageSummaryHtml(pageid);
 }

 return html;
}

And here is the jquery Ajax call for that method:

$.ajax({

  type: "POST",
  url: "MyPage.aspx/GetPageSummary",
  data: "{ 'pageid':'" + id + "'}",
  contentType: "application/json; charset=utf-8",
  dataType: "json",
  success: function (response) {
   showModelPopupForSummary(response.d)
  },
  error: function (response) {   
   //error-handling code...
  }
 });

It all looks fine and working in previous project, but not with new WebSite project.

After spending way too much time on this, I found out the solution for this.

You have to change enum value for AutoRedirectMode. Go to App_Code/RouteConfig.cs, inside RegisterRoutes() method, you will see this line:

 settings.AutoRedirectMode = RedirectMode.Permanent;

Change the enum value to RedirectMode.Off, final statement would be:

 settings.AutoRedirectMode = RedirectMode.Off;

After changing this all my ajax calls started working successfully.

2 comments:

  1. Great insights! I really appreciate how clearly you’ve outlined the topic. Your post has provided some valuable clarity. Thanks for sharing!

    ReplyDelete
  2. Facing issues with jQuery AJAX calls to ASP.NET WebMethods can often be traced to misconfigured data types, incorrect method attributes, or JSON formatting errors. Debugging these steps can help resolve the problem. Learn more troubleshooting tips at wooting double movement!

    ReplyDelete