I have the following web method , no success on return a correct Json format.
[Code]....
GetAll() return list of type "Company" POCO classes.
The web method complaint type "Company" could not cast to object. However I could not just return the Company type because client side Json only accept its 2 properties -"CompanyName", "ID" and I want to keep it that way.
Of cause, I had tried create a CompanyDTO which only have those two properties, but same error - "Unable to cast object of type..."
How should I modify in my web method to make it able to return a list of partial "Company" type in Json format?
How to return values from Webmethod to the client in JSON format? There are two static int values that i want to return.Do I need to create new object with those 2 properties and return it?The GetStatus() method is called frequently and i don't like the idea of creating a special object each time just for json formatting...
[WebMethod] public static int GetStatus() { int statusProcess,statusProcessTotal; Status.Lock.EnterReadLock(); statusProcess=Status.Process; //Static field statusProcessTotal=Status.ProcessTotal; //Static field Status.Lock.ExitReadLock(); return ... } On client side I catch the return value in : function OnSucceeded(result, userContext, methodName) (PageMethods.GetStatus(OnSucceeded, OnFailed);)
I am trying to retrieve asp.net C# List method in JavaScript by referring Send-and-receive-JavaScript-Array-to-Web-Service-Web-Method-using-ASP.Net-AJAX ..My Code as below
Javascript
<script type = "text/javascript"> function GetAllSVGData() { PageMethods.GetSvgElements(OnSuccessSVGElements); } function OnSuccessSVGElements(response) {
[code]....
My problem is JavaScript function OnSuccessSVGElements is not firing. When I put breakpoints in it is working fine in C#. C# Method Working But Alerts in javascript not working.
I'm completely new to both VB.NET and JSON, and I'm trying to figure out how to do SQL queries towards an SQL 2005 Express server and format the return value to JSON. I got the queries working using this (perhaps very newbie-like) code;
Imports System Imports System.Data Imports System.Data.SqlClient Imports System.Web.UI Imports System.Web.UI.WebControls Partial Public Class SQLConnect Inherits System.Web.UI.Page 'Defines SQL variables Dim con As New SqlConnection Dim cmd As New SqlCommand Dim dr As SqlDataReader Dim ReadData As String Dim i As Integer Sub Click(ByVal s As Object, ByVal e As EventArgs) 'Define SQL address, database, username and password con.ConnectionString = "Data Source=localhostSQLEXPRESS;Initial Catalog=tempdb;User ID=tesst;Password=test" Try 'Initialize connection con.Open() 'Specify SQL query cmd = New SqlCommand("SELECT * FROM Member", con) 'Execute query, dump result array into variable dr = cmd.ExecuteReader() messageLabel.Text = "<br />Connection established<br />" While (dr.Read) i = 0 For i = 0 To dr.FieldCount - 1 'Dump query results into a variable ReadData += dr.Item(i).ToString Next End While 'Print query results messageLabel2.Text = ReadData 'Close connection con.Close() Catch ex As Exception messageLabel.Text = "<br />Connection failed<br />" End Try End Sub End Class
I have been looking at this, and I would love to see some code examples using this class or any other good method.
I'm doing an jQuery AJAX POST call to a webmethod, which is working fine. If I'm passing data from the AJAX call, I normally get the data in the webmethod via webmethod parameters.
JavaScript Code: $.ajax({"dataType": "json","contentType": "application/json","type": "POST","url": "Default.aspx/GetStuff","data": JSON.stringify({"a":"data1","b":2}),"success": function (msg) { console.log(msg.d);}}); C# Code: [WebMethod]public static object GetStuff(string a, int b){ }
Is there any way I can get the data as a Dictionary or some other object, instead of having to put in individual parameters to the GetStuff() web method for each data param? It's a POST request so nothing is in Request.QueryString, and Request.Params/Request.Form doesn't contain it either.
I have a service that works great on my development box. It uses JQuery to hit my web service, and then the JSON results are sent back.
The web service is located on our basePage.cs. We didn't want to put out an external WebService for this. Our on beta box something different is happening.
The web page seems to be trying to call the web method correctly - the JSON data is being sent... but the server doesn't seem to know it's a webmethod. here's my service function (it's in our basepage.cs which inherits from Page).
i have used AjaxToolkit:AutoCompleteExtender, which calls a web method to get string array. Everything was working fine as its populating all the data.But the issue arise when web method is returning value in a string array like
arr[0]=1-12-100
arr[1]=1-10-100
the value im getting in the AutoCompleteExtender is the subtract of the result like
arr[0]=-111
arr[1]=-109
Why is it treating it like numeric and doing calculation when the return type is actual an string. i think its has to do sth with serialize and deserialize thing
I have a web Method in my C# that is called via Jquery ajax method. The web method should return an object back to the Jquery which will be used to populate. I have tried returning a JsonResult object, the actual object and nothing seems to work! I'm not using MVC (Unfortunately). Is there a way that I can return an object from my web method which can be used by my AJAX method? here is the link for my JQuery AJAX method [URL]
I have an Ajax function called from JQuery that goes to a webservice to return a value. I need a SIMPLE example on how I can do this. I've been going nuts with serializing and every other aspect of this topic. I need to return either an ArrayList with ONE string field or a DataTable of some kind. Either way, I'm populating it into a DropDownList. I'm willing to consider alternatives to this idea. (Background info - I get a value from a textbox and I need to run it through a DB to get an associated value or set of values). I'm being really general so that someone can show a simple example.
However, the data is just available as a string, and does not seem to be available as JSON data from javascript. What do I need to do to work with the returned data as JSON from javascript?
I'm trying to return an error page indicating that the user couldnt be found and therefore I throw a HttpException with status code 404, however for some reason it wont redirect to the error page? - Is there some sort of trick to handle error pages with JSON that I should be aware of? My current code:
public ActionResult Details(int id) { User userToGet = _session.Query(new GetUserById(id)); if(userToGet == null) { throw new HttpException(404, "User not found"); } DetailsUserViewModel userToViewModel = AutoMapper.Mapper.Map<User, DetailsUserViewModel>(userToGet); return Json(new { HTML = RenderPartialViewToString("Partials/Details", userToViewModel) }, JsonRequestBehavior.AllowGet); }
I want to send single json object with nested arrays through jquery ajax method.
In Code
In jquery ajax i am passing LeaveRuleMaster a single json object which holds some properties (Leavetypeid, Leavename, Leavestatus and nested array LeaveRulespecific.
In vb.net code i can receive the value of properties(Leavetypeid,Leavename,Leavestatus)
but i am receiving the LeaveRuleSpecific as nothing.
Based on the following link i tried this [URL] .....
I just hit the following issue: I am calling a web service that returns a serialized JSON object let's say: __type, FirstName, LastName (.net object Person with properties FirstName and LastName). __type's value is Test.Person
I have created a JS object using Type.registerNameSpace/registerClass called Demo.Person and it is registered on the page using the ScriptManager. Everything is working fine; I am able to get data from the server on the call back.
Is it possible to make the returned object from the web service be an instance of the declared JavaScript Demo.Person class? The idea would be to call a method like result.getFullName() on the client side without having to copy all the properties. This is just a simple scenario for more complex objects.
Can my WebMethod return an XmlDocument as return type?
When I try to consume the web service I'm still not getting XML. It appears as though a reference to the method is being returned rather than say a string containing XML.
<WebMethod()> _ Public Function CustomerSearch(ByVal lastName As String, ByVal firstName As String, ByVal companyName As String, ByVal city As String, ByVal state As String, ByVal email As String) As XmlDocument ' Create XML doc Dim doc As XmlDocument = New XmlDocument() ' some more code Return doc End Function
The problem is the double quotes wrapping everything under 'd'. Is there something I've missed in the web method or some other means of returning the data without the quotes? I don't really want to be stripping it out on the client everytime. Also I've seen other articles where this doesn't happen.