Json Value Undefined When Converting Datatable Into Json Format?
Feb 1, 2010I want to retreive the data from database and assign it to dropdownlist. For that I'm using the following jquery in the onclick event
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Similar Messages:
C# - Converting Json String Into Json On Client Side?
Apr 4, 2011In my javascript code I am getting json string from cs file
var tmpString="<%=resultset2%>";
In cs I am concatenating strings to build json string. Here is an issue the json string is returned as a string and it has " with it.
"[{id:'1',name:'Aik'},{id:'2',name:'Aik or Aik'}]"
Because of " in beginning and end javascript code treat it as a string.
Javascript - How To Make Json Child Nodes (JSON Inside JSON)
Aug 11, 2010I 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": "??" } } }
VS 2010 / Microsoft JScript Runtime Error - JSON Is Undefined
Jun 21, 2011I am using Windows 7 PRO, 64 bit, with Internet Explorer 8, Visual Studio 2010
Every time I run any ASP.NET application in debug mode, right after it loads any of the pages, then I get 2 errors:
Error: Microsoft JScript runtime error: 'JSON' is undefined
I click "Ignore" error, then I get this: Microsoft JScript runtime error: 'undefined' is null or not an object
And the file is from Internet Explorer:
how to fix this ?
C# - Error Converting JSON To .Net Object?
Apr 19, 2010I am unable to convert JSON string to .net object in asp.net. I am sending JSON string from client to server using hidden field (by keeping the JSON object.Tostring() in hidden field and reading the hidden field value in code behind file)
Json string/ Object:
[[{"OfferId":"1","OrderValue":"11","HostingTypeID":"3"},
{"OfferId":"1","OrderValue":"11","HostingTypeID":"3"},
{"OfferId":"1","OrderValue":"11","HostingTypeID":"3"},
{"OfferId":"1","OrderValue":"2","HostingTypeID":"3"},
[Code]....
While converting i am getting following error:
Expecting element 'root' from namespace ''.. Encountered 'None' with name '', namespace ''.
Manually Converting Result Dataset To JSON?
Mar 3, 2011I have DataReader that holds the results from a stored procedure caal. The results consist of two fields ...
UserID
UserName
Normally I bind these results to an ASP.NET dropdownlist control ...
ddlUserList.DataSource = rdr // rdr is the DataReader
ddlUserList.DataTextField = "UserName"
ddlUserList.DataValueField = "UserID"
ddlUserList.DataBind()
However I am now trying to accomplish the same thing using jQuery AJAX. What I am stuck on is how to manually convert the dataset held in the DataReader to JSON. How are multiples values separated? Does this look correct?
{{"UserID":1, "UserName":"Bob"}, {"UserID":2, "UserName":"Sally"},{"UserID":3, "UserName":"Fred"}}
I realize there are libraries out there such as JSON.NET to handle the serialization but I am in the learning stage now and want to make sure I understand everything from the bottom up.
Read An External JSON File Using Json.NET On Page Load?
Dec 29, 2010I have a text file named gisQuery129.json that is created using Json.NET - [URL] There is an example on how to create a JSON file and I have done that successfully, but I want to read the file on a page load event and add the values to .NET textbox controls for input values in a query. The created file looks like the following:
{
"myData": {
"randomNumber": "129",
"Application": "MyMapApp",
"FeatureId": "ALL",
"Feature": "ALL",
"spatialQuery": "FEATURE_ID= '11111' AND REQ_SEQ_NUM= 1 AND RAND_PARAM= 129 OR FEATURE_ID= '22222' AND REQ_SEQ_NUM= 2 AND RAND_PARAM= 129"
}
}
I want to read the data in the above sample JSON data and then populate my textboxes something like this:
txtRandParam.text = "129"
txtApplication.text = "MyMapApp" and three more text boxes after that.
AJAX :: How To Format Text In C# Into Proper JSON Format
Nov 30, 2010I'm using jquery autocomplete to call a .aspx page which returns some matching words.
The jQuery stuff relies on a JSON feed to work. Currently, in my C# I'm formatting the output as a string, which ouputs something like this:
{ query:'aa','aardvark','aardvarks']}
I was hoping that because the string is formatted in the JSON format, that would be good enough for the Javascript to process but it appears not.
how to format this text in C# into proper JSON format which JavaScript can deal with properly?
How To Convert JSON String To JSON Object Using JavaScript
Jan 21, 2011I 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 RepliesHow To Convert The Datatable To JSON
Mar 30, 2011I'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.
VS 2008 - How To Convert Datatable To JSON
Mar 30, 2011I have the following Page Method that returns a datatable:
[code]....
Implementing JSON Feed On Web Application With JSON.NET?
Nov 18, 2010I've been tasked with implementing a JSON feed on an asp.net website that will be consumed by 3rd party apps (such as IPhone, Android, etc) and I'd like to follow best practices.
An example of what I'd like to achieve would be something similar to: [URL]
I've chosen the JSON.net api as this seems to be highly recommended.
My Google-fu must be failing me as I can't find a single full example code for an Asp.net web application with JSON.net implemented on it, so I've no real concept of where to begin.
My question is fairly simple:
Should I create this sort of feed as an ASPX, or ASHX file? Or even a .NET Web Service? (Remember that the tools that will be using this feed are on external apps like IPhones, etc)
I created a test feed in both ASHX and ASPX format ... here is the code (I'm using Subsonic to populate the collection) ... are either of these along the correct lines?
ASPX:
[Code]...
AJAX :: Convert DataTable Into JSON String?
Jun 27, 2010this 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.
VS 2005 Reading Json Format?
Apr 13, 2010My approach in reading a json format is parsing into an array. My question is this the right way of reading json format?
View 5 RepliesHow To Programmatically Format JSON Data
Feb 3, 2011I'm working with big blobs of JSON. These blobs change slightly over time and a revision history is kept. I'd really like to be able to do a visual diff on them, but my problem is they're being stored without any formatting at all - everything is on one line, so that makes it a little hard to see what changed.
View 3 RepliesJavascript - Convert Csv File To Json Object Datatable?
Aug 30, 2010Does 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 RepliesWebMethod Return Values In JSON Format?
Jan 24, 2010How 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);)
Select Options Value And Text To JSON Format?
Mar 16, 2010How can i convert select options elements to JSON text.
[code]...
I want to set options belong to select which is not runat=server to the And I want to split string to array.
How To Convert A JSON Constructed From Table To A Datatable For An Update Query
Jan 29, 2011I 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]...
AJAX :: Return Complex Type In Json Format?
Jun 11, 2010I was using Extjs to send a json object to my asp.net webservice/Update method , but I find the following error in firebug reseponse.
[Code]....
Cannot Upload A File To A Webservice And Get The Response In Json Format
Aug 10, 2010I 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]...
JQuery :: Get Data In Json Format Client Side
Mar 10, 2011i Declare in.cs file
TextBox tb=new TextBox();
and how to get aspx when page is load
<input type="Text" runat="server"/>
using jquery json
AJAX :: Return Json Format From Page's Webmethod?
Jun 7, 2010I have the following web method , no success on return a correct Json format.
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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?
WCF / ASMX :: Return A Generic List In Json Format?
Oct 30, 2010how would i go about returning a generic list in json format, can anyone point me to any good examples.
View 2 RepliesDo SQL Queries Towards An SQL 2005 Express Server And Format The Return Value To JSON?
Feb 19, 2010I'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.
