AJAX :: Use Json For Interdependency Of Four Dropdown
Dec 19, 2010
I use json for making cascading dropdown. Scenario is, at the page load i use ajaxcontrol toolkit cascading dropdown. For selection of first dropdown all other 4 dropdown will populate. Now i use json for interdependency of that very four dropdown. So according to that filtering is happen. But when the page is agin loading then all the dropdowns are populated with all the values, now filtered values are not showing. How to show only the filtering values?
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Aug 11, 2010
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": "??" } } }
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Jun 22, 2010
I am new to WCF, I was using web service asmx before. I have trouble on making my wcf JSON ajax service work through http like asmx.Could you help me see what wrong in my code?My WCF services are defined in my website application folder. My aim is to call this service in my aspx page java-script code and return complex object back as JSON to my javascript. I have no problem on doing this through classic asmx web service.
When I try to test it through my browser by type this in the URL , URL-http://localhost:3849/WebServices/Account/WCFCompanyService.svc/GetAll. it return "Method not allowed."
But if I type just this URL-http://localhost:3849/WebServices/Account/WCFCompanyService.svc, it return this:
WCFCompanyService Service
You have created a service.To test this service, you will need to create a client and use it to call the service. You can do this using the svcutil.exe tool from the command line with the following syntax:
svcutil.exe URL-http://localhost:3849/WebServices/Account/WCFCompanyService.svc?wsdl
This will generate a configuration file and a code file that contains the client class. Add the two files to your client application and use the generated client class to call the Service. For example:
C#
class Test { static void Main() { HelloClient client = new HelloClient();
[Code]....
This is my Ajax-enabled WCF service code:
[Code]....
This is the web.config service model setting
[Code]....
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Dec 29, 2010
I 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.
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Aug 5, 2010
I am using Cascade dropdown the basic code which i used write down below i am reading data from xml file for Country,State,City.before sometime it was work fine but now it give me an "undefined" data in state dropdown only.
Basically i make a user control on this page my design code are as follow
[Code]....
and on one aspx page i call this control and put a one webmethod for state dropdown
[Code]....
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Feb 1, 2010
I want to retreive the data from database and assign it to dropdownlist. For that I'm using the following jquery in the onclick event
[Code]....
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Jan 21, 2011
I 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?
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Apr 4, 2011
In 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.
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Feb 12, 2010
I'm trying some WCF ajax.net 3.5 out for the first time, and I'm having some difficulties. I have a WCF Service which I have connected to in my aspx page using <asp:ScriptManager>. I have a custom object which has been decorated as a [DataContract]. I'm calling the object from javascript successfully, I can see the JSON response in FireBug, but Sys.Serialization.JavaScriptSerializer.deserialize() chokes on it. I'm sure I'm making a noob mistake, but I used up all my patience getting the Web.Config values right for running the WCF service.
Here's a mockup of what I'm doing.
[Code]....
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Jan 12, 2010
I am using an AJAX.Net to call an ASP.Net PageMethod, which returns JSON serialized JSON data
{"d":"[{"Fromaddress":"testfrom1@test.com","Toaddress":"testto1@test.com"},{"Fromaddress":"testfrom2@test.com","Toaddress":"testto2@test.com"}]"}
The Response Header states the content type as
"Content-Type application/json; charset=utf-8"
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?
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Feb 13, 2010
I have developed a wcf service for asp.net ajax client. It includes the following steps.
(1) Created WCF sevice contract with the operation "DoWork()" which will take string as input and retun string as output.
(2)Implemented the above operation contract(attributed the implementation class with aspnetcompatibility requirement as enabled).
(3)Added the webscriptenabled to endpoint in web.config file.
(4)Hosted the wcf servie.
(5)Downloaded the javascript file from the service.(e.g.,http://localhost/service1.svc/js)
Client
(1)Opend new asp.net webapplication.
(2)Added the downloaded .js file.
(3)Given the scripts path for ajaxscript manager as both .js file and service url.
e.g
<asp:ScriptManager
ID="id1"
runat="server">
<Scripts>
<asp:ScriptReference
Path="http://localhost:3443/Service1.svc/js/"
/>
<asp:ScriptReference
Path="~/js1.js"
/>
</Scripts>
</asp:ScriptManager>
(4)With this I am unable to call service method
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Dec 29, 2010
client code:
<script src="../Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
<script type="text/javascript" language="javascript">
$("#send").click(function () {
$.ajax({
url: "../JqueryAjax/JqueryAjaxServer.aspx",
type: 'get',
contentType: "application/json; charset=utf-8",
dataType: "json",
timeout: 30000,
data: "{}",
success: function (data, textStatus) {
alert("success");
},
error: function (XMLHttpRequest, textStatus, errorThrown) {
alert("error");
alert(textStatus);
alert(errorThrown.toString());
}
});
});
</script>
server code:
Response.ContentType ="application/json";
string json = "{"username":"test"}";// ,"content":"test"
Response.Write(json);
when i click the post request button the result is shown like this Invalid Json,the browser alert this.
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Feb 14, 2011
I am lost, I am posing a jSon result to an MVC ActionResult and I cannot get it done. What I have is on the View:
[Code]....
With Firebug I can see that I am posting a jSon result with the result I selected. This result is comming from a select list(UnAssignedPages) as the items selected.
Now I want to iterate over that list in the controller and I cannot find an example of how to do it? I found a jSon value provider from Phil Haack [URL] but I was specifically told not to use the Futures Library. Is there any example of how to accept a jSon result in an ActionResult?
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Nov 23, 2010
For now, I just want to use HTTP POST to send json to asp.net mvc2 controller.Since the JSON is actually a list of JSON objects, and each of them has different fields & length, so it hard for me to make up a input model.So I want to know is there a way for me to post JSON without model/ajax to a controller in ASP.NET MVC2?
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Sep 22, 2010
I want to use Json in asp.net.when ever drop down selects related values should be place in following TextBoxes..
Ex: ddltest
txtbox1,txtbox2,
when ever i select ddltest value as Blood Test the Related values of Blood test(Select units,normalvalu form Tests) should be placed in txtbox1 and txtbox2.
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Nov 18, 2010
I'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]...
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Jun 16, 2010
My json response contains json with structure (eg. "[[[],[]]]") but no actual content.
AJAX code:
[Code]....
It definitely recognizes structure (if I change the xml nodes, it reflects in the []'s) but just isn't inserting any content. I tried prefixing the web method with "<ScriptMethod(ResponseFormat:=ResponseFormat.Json)>" but it made no difference.
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Jan 27, 2011
I posted this on Stack overflow [URL] but have not had a solution, just completely different way of doing it without using the Ajax.* helpers so I'm wondering if anyone has an Ajax.* solution here?I'm using MVC 3. I have a method on the controller that returns a Json object, according to this question it should be returned to me as Json, but I am finding that is not the case[URL]
here's the code that I have:
[Code]....
And the controller:
[Code]....
The first message box displays the response text which is:{"Success":True, "objectId":"testing"}
the second message box displays undefinedSo it is coming back to the client correctly, I'm just not sure how to get it out?...Stefan
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Dec 20, 2010
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?
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Nov 6, 2010
How upload Image in the Server by Json ?
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Jun 15, 2010
I am looking for a good examples about JSON, how to do it.
I know JavaScript so it shouldn't be that hard.
Can JSON update server controls?
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Mar 2, 2010
I know MVC controllers are quite good at serving JSON formatted AJAX requests, but is there any built-in ASP.NET functionality I can use for these type calls from a plain old web forms site
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Apr 10, 2010
i have few textbox on the form and when the user submit i want to capture the data and insert into db
here is what my code looks like
beforeSubmit: function(data)
{ // called just before the form is submitted
var item = $("[id$='item']");
var category = $("[id$='category']");
var record = $("[id$='record']");
[Code].....
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Jan 29, 2010
Am using UpdatePanel on a .aspx page with a User Control. This user control is AJAX enabled and is using UpdatePanel and ScriptManager on the aspx side. When I have EnablePartialRendering set to true i.e. <asp:ScriptManager runat="server" id="someId" EnablePartialRendering="true" >
and use ScriptManager.RegisterClientScript to write JSON from server side (C# code) - it is not written to the browser i.e. it shows empty square brackets when I view source in Browser i.e. var SomeVar = [] As soon as I change EnablePartialRendering ="false" and refresh the page JSON starting showing up in the browser i.e. var SomeVar = [{"id","1"}{"id",2}]
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Feb 20, 2010
What is the quickest way once I have JSON array in hard to actually manufacture HTML? I'm thinking it's iterating the JSON arrays pulling out needed data and concatinating an HTML string that I pass to eval()? Is there a faster way?
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