I quickly set up this project and I was able to successfully call my web method, please adjust your code accordingly. Make sure your class property names are the same as the ones that you pass through JavaScript. Webservice public static Contact getContact(Contact cnt) { cnt.name = “Abijeet Patro”; cnt.phone = “Blah Blah”; return cnt; … Read more
Try following fixes for your Ajax request: $.ajax({ type: “post”, url: “Playground.aspx/childBind”, data: “{sendData: ‘” + ID + “‘}”, contentType: “application/json; charset=utf-8”, dataType: “json”, success: function (result) { alert(“successful!” + result.d); } }) Notice changed dataType and data value as a string.
You webmethod needs to be static. [WebMethod] public static Details[] getDetails(string columnname, string inputVal)
JavaScriptSerialzer has a public property named MaxJsonLength according to http://msdn.microsoft.com/en-us/library/system.web.configuration.scriptingjsonserializationsection.maxjsonlength.aspx Now, where you are deserializing your json, use this JavaScriptSerializer serializer = new JavaScriptSerializer(); serializer.MaxJsonLength = Int32.MaxValue; //Or any size you want to use, basically int maxValue is 2GB, you shouldn’t need this big json string to deserialize, else you are doing it wrong. myObject … Read more
You should really make sure to properly encode this JSON. JSON.stringify is the most reliable method: data: JSON.stringify({ accessCode: code, newURL: url }) This ensures that even if the code and url variables contain some dangerous characters that will break your string concatenations in the resulting JSON at the end everything will be properly encoded. … Read more
Sorry to say that, but the only way to execute asynchronously your code and use session variables is to make your totally custom session solution – and I mean totally custom and disable the asp.net session entirely. Basic tips to make your session: You have one cookie connected with the users data The data is … Read more
You can avoid the static constraint by using a simple .asmx page instead of the codebehind page. 1) Open New Website using the AJAX Enable ASP.NET template (it puts the necessary references in the web.config) 2) SIMPLESERVICE.ASMX – Add a new .asmx web service (I called mine SimpleService.asmx) Notice the [System.Web.Script.Services.ScriptSerive] decoration and that the … Read more
Just a guess what does the variable json contain after var json = Sys.Serialization.JavaScriptSerializer.serialize(obj);? If it is a valid json object like {“foo”:”foovalue”, “bar”:”barvalue”} then jQuery might not send it as json data but instead serialize it to foor=foovalue&bar=barvalue thus you get the error “Invalid JSON primitive: foo” Try instead setting the data as string … Read more
Make sure that you have enabled page methods in your ScriptManager element: <asp:ScriptManager ID=”scm” runat=”server” EnablePageMethods=”true” /> and that you have canceled the default action of the button by returning false inside the onclick handler, otherwise the page performs a full postback and your AJAX call might never have the time to finish. Here’s a … Read more
Problem solved This was driving me crazy. Inside ~/App_Start/RouteConfig.cs change: settings.AutoRedirectMode = RedirectMode.Permanent; To: settings.AutoRedirectMode = RedirectMode.Off; (Or just comment the line) Also if friendly URLs are enabled you need to change url: “ConsultaPedidos.aspx/GetClients”, To: url: ‘<%= ResolveUrl(“ConsultaPedidos.aspx/GetClients”) %>’, Hope this help somebody else