Does anyone know how to convert backend data to a json response using .NET technologies? It'd be nice to have this and use jquery to call some information on the backend.
View 1 Repliesconvert webservice xml response to object dynamically using JSON
View 1 RepliesI use the JavaScriptSerializer class of ASP.net to serialize my object and return it to the client side. How can I deserialize the string using JavaScript?
View 4 RepliesI'm working on an MVC2 site that needs to update the values of a select list based on the value selected by a user in another list. This is the response I'm getting from my controller's JSON action:
[{"Selected":false,"Text":"Client1Group1","Value":null},{"Selected":false,"Text":"Client1Group2","Value":null}]
Lots of people recommend to wrap the MVC JsonReturn result in a textarea to play nicely with jquery forms etc.
That part makes sense but how do I get the json object back in my client jquery code?
The client jquery plugin should look something like this:
// Doesn't work since data is "<textarea>{"error":true,"msg":"foo"}
I am getting data from xml webservice. The data is coming in:
<![CDATA]> like <![CDATA[Semi-Detached, Didcot]]>.
I have used HtmlEncode to convert or get data from above tag but unable to get data. I wanna get data from <![CDATA]> tag and display in a grid.
I have trouble with JSON response compression. I look to response headers after uploading website to production server (Windows 2008, IIS 7) and found uncompressed response. Turning on "Enabled static compression" and ""Enable dynamic compression" in IIS control panel does not effect. ASPX pages was responsed gzipped, but webservice response uncompressed.
I looked to google, but no answer found about this trouble. Also, I try this [URL] way (and adding to web.config this module) - but this source is excellent working at development machine with ASP.NET development server (and have seven times response size reduced) and totally ignored at IIS7.
How I can apply gzip compression to json responses from my webservice?
I am having problems making an AJAX call when the response is over 2MB. Anything with a response under 2MB works fine. When the response is over 2MB, my "success" method never gets called. My application is ASP.NET MVC2.
I am making the call using the jQuery AJAX call:
$.ajax({ type: "post", data: ajaxData, url: ajaxUrl, success: updateItems, cache: false });
In my controller, I am using the Json() action result method:
public ActionResult GetItems(....) { ...
return Json(packet); }
When I watch the call in Fiddler it comes back with a HTTP 500 response. I tried setting the maxJsonLength in the Web.config file as shown here, but that doesn't seem to make any difference. How to allow a response over 2MB?
I have an ASPX page that I am using to write JSON. It works great in Firefox and Chrome, but when I try and use it in IE 8 it gives me an "The XML page cannot be displayed" error instead of allowing jQuery to load the JSON being written by the response. Here is what my code looks like:
protected override void OnLoad(EventArgs e)
{
Response.Clear();
Response.ClearHeaders();
Response.ContentType = "application/json";
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.Write(string.Format("[ {{ "Foo": "{0}", "bar": "{1}" }} ]", "Foo Content", "Bar Content"));
Response.End();
}
I have a simple webservice that I would like to upload a file to. The problem is that I need the response in json.
Form my experience in order to get a response in Json my request has to have a content-type of 'application/json'. But ofcourse this cannot be the case with a file upload since the content type will have to be 'multipart/form-data'.
In my Json i want to return a value showing whether successful and a filename.
[code]...
I try to get parse JSON response for the following link:
https://graph.facebook.com/feed/?ids=135395949809348,149531474996&access_token=
The response is like that:
{
"135395949809348": {
"data": [
{
....Some data
}]
}
,
"325475509465": {
"data": [
{
....Some data......
}]
}
}
I use System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(string json) method.
But the objects key names always different , so I can't define the class that can be used for parsing this response.Is anyone has any experience in parsing multiple id's response from Facebook?
I'm trying to populate the slickGrid with an ajax call.
Code:
<script type="text/javascript" >
$(document).ready(function() {
var params = {};
[code]...
my function returns a datatable. But I need to convert the datatable to JSON.
public class JsonBuilder
{
private StringBuilder json;
public JsonBuilder()
{
json = new StringBuilder();
}
public JsonBuilder AddObjectType(string className)
{
json.Append(""" + className + "": {");
return this;
}
public JsonBuilder Add(string key, string val)
{
json.AppendFormat(""{0}":"{1}",", key, val);
return this;
}
public JsonBuilder Add(string key, int val)
{
json.AppendFormat(""{0}":{1},", key, val);
return this;
}
public string Serialize()
{
return json.ToString().TrimEnd(new char[] { ',' }) + "}";
}
}
Here is the Web Method [WebMethod]
public static string GetPersonInfo(string pFirstName, string pLastName)
{
var json = new JsonBuilder().AddObjectType("Person");
json.Add("FirstName", "Psuedo" + pFirstName).Add("LastName", "Tally-" + pLastName);
json.Add("Address", "5035 Macleay Rd SE").Add("City", "Salem");
json.Add("State", "Oregon").Add("ZipCode", "97317").Add("Age", 99);
return json.Serialize();
}................
I have the following Page Method that returns a datatable:
[code]....
If I have a string containing valid JSON
how can I convert to an obect in c#?
Is there a library or something that can help to convert xml(or json) to sql? Output should be an sql script with referential integrity support, etc.
View 1 RepliesI have some stored JSON strings stored in the DB which I want to return to the client as JsonResult . I know that Json(object) turns an object into JsonResult but what if I already have the result in a string ? can I cast it to JsonResult
View 2 RepliesI have a list of person objects which I want to send in response to a jquery' ajax request. I want to send the list into JSON format. The list is as follows -
List<Person> PersonList = new List<Person>();
Person Atiq = new Person("Atiq Hasan Mollah", 23, "Whassap Homie");
Person Sajib = new Person("Sajib Mamud", 24, "Chol kheye ashi");
PersonList.Add(Atiq);
PersonList.Add(Sajib);
How can I convert the "PersonList" list into JSON ?
this is the web method I'm using to convert my DataTable into JSON string:
[Code]....
But I'm not sure this is as good and as fast as it should be. I am sending to client side a JSON string format, but I think maybe there is a better way of doing this. I know there is JSON.NET
but I didn't see there any converting for DataTables.
Does anyone know how to get a csv url file and convert it to a json object so that I can use google charting tools in js?
View 3 RepliesI would like to send json data from a HTML table to the ASP.NET code-behind and update the data in and SQL Server database. The code and JSON for the TableProductToUpdate() is below.
function UpdateProductTable() {
$.ajax({
type: "POST",
url: "Default.aspx/UpdateProductTable",
data: "{'products':" + JSON.stringify(TableProductToUpdate()) + "}",
[code]...
I try to use the jquery + json to get all elements in form and build a JSON var to post in a ASP.NET MVC method.
[Code]....
It method get all fields in a form and build a JSON, but it dont put JSON inside JSON.
Example:
If i have the follow form:
<input name="person.name"><input name="person.age"><input name="person.address.street">
The serialized string build a JSON like this
{ "person.name": "??", "person.age": "??", "person.address.street": "??" }
I need a plugin or some function to generate like this:
{ "person": { "name" : "??", "age" : "??", "address":{ "street": "??" } } }
in previously asked question answeres said they dont get what i want to do exactly so heres is the full code also i simply want that instead of a TABLESe i rendered an image( of the content ) on the page
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.IO;
using System.Text;
using System.Data;
using System.Drawing;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
System.Web.UI.WebControls.Panel panelmain = new System.Web.UI.WebControls.Panel();
System.Web.UI.WebControls.Literal abc = new System.Web.UI.WebControls.Literal();
abc.Text = "as<br/>dasdas<br/>dasdad";
DataSet ds = new DataSet();
DataTable dt;
DataRow dr;
DataColumn idCoulumn;
DataColumn nameCoulumn;
dt = new DataTable();
idCoulumn = new DataColumn("ID", Type.GetType("System.Int32"));
nameCoulumn = new DataColumn("Name", Type.GetType("System.String"));
dt.Columns.Add(idCoulumn);
dt.Columns.Add(nameCoulumn);
dr = dt.NewRow();
dr["ID"] = 1;
dr["Name"] = "Name1";
dt.Rows.Add(dr);
dr = dt.NewRow();
dr["ID"] = 2;.............
I was searching for my problem for last couple of days. But coudn't find a better solution. So here I go again. What I did which worked great: I was going to a asp page with pre populated Dataset (dataset is already loaded with data), for a GridView. If I do the following .... the GridView shows all the data (with the fields Dataset comes with).
[Code]....
Now what I am trying to do: I am trying to do exact same thing but instead of using GridView, I would like to display data in a FormView. So now I tried to do this
[Code]....
PROBLEM: I can see the FormView Header with text "Test Dataset With FormView" and below the Header it displays the page numbers. I know that I have 3 data in the data set and I can see 3 page link in the FormView. But PROBLEM is it doesn't display any Field / Data. Not sure why it is doing this
Note that I wouldn't know what field to display in the FormView. Whatever I have in the Dataset I need to display. Is there any work around to accomlish my work (maybe by not using a FormView, but other conrol ?). My original goal is to Display Data in a Form View Format (One data at a time
My ASP.NET MVC web app has a weird issue. In VS debugging mode it works as expected, but when I publish it to dedicated web server (windows 2003, IIS6) a sql query returns previous data even though underlying data was already updated through the same connection. It looks like as if a query returns cached data. What might be the problem?
View 2 Replies