Thanigainathan Siranjeevi

I moved to new blog

thanigai — Tue, 28 Jun 2011 11:33:37 GMT

I have moved myself to a new website . Going forward I will be posting there. So please change your bookmarks.

This is going to be my technical blog . cheers :)

Jquery dropdown selected value

thanigai — Fri, 04 Dec 2009 13:08:31 GMT

Today we had a little situation where to get the selected text of Dropdown in Jquery. As far as I know we can get only the value as given below

$("#somedrop").val()

This gives the selected value. I did a little google and found a helpful text in discussion forums . The answer will be simple.

$("#somedrop option:selected").text()

Please let me know if you have some other ways also.

Thanks,

Thani

WCF Services IIS Config

thanigai — Mon, 16 Nov 2009 21:39:01 GMT

All these days I was trying out with ADO.Net Dataservices in my local Visual Studio 2008 express which used to run in the Cassini WebServer which comes along with that. I was having some problem with the port as the number is dynamic.So I decided myself to upload the same in IIS and did so. When tried running the app pointing to the DataService file "Data.svc" I got a boom error saying the MIME type was not registered. I was going through IIS trying to find a possible solutions .I tried adding the Extension in the IIS manually. But I could not find the handlers for that. Then I did a little bing and found some solution. We need to register the WCF module with IIS otherwise we wont be getting those MIME types. The commands are as follows.

This command used to be "ServiceModel.exe –I" in previous versions and now it changed to "ServiceModel1Reg.exe -i". After this you will get the installations done as below.

That's it .We can see the MIME types up in the IIS as below.

I referred the following link

http://social.msdn.microsoft.com/Forums/en-US/adodotnetdataservices/thread/f447c6df-6402-4a13-875c-925445fd7be8/

Thanks,

Thani

.Net RIA services is live

thanigai — Sun, 08 Nov 2009 21:44:39 GMT

Hi All,

The most awaited RIA services is live. You can check the below blog post. http://blogs.msdn.com/brada/default.aspx

Thanks, Thani

Some useful Links I am reading

thanigai — Mon, 02 Nov 2009 20:02:54 GMT

I am currently studying some of the listed articles which may be of useful for you guys

Study material on Object Persistence (This is in Java but subject is general)
New things in .Net 4 Beta 2
Javascript Class browser
Making jQuery calls to WCF/ASMX with a ServiceProxy Client
Disable button during postback

Hope they will be of great use.

Thanks,

Thanigainathan.S

Calling asp.net webservice from JQuery

thanigai — Fri, 30 Oct 2009 20:37:19 GMT

Today I was trying to call ASP.Net web service from JQuery. I thought it was easy first. But when tried implementing them I felt the difficulty. I don't had this problem while calling Ajax enabled WCF service from JQuery. Hence I did a small Bing and found out some useful tips to share. I referred links below.

The above links are very helpful. In addition to that you may need the following prerequisites.

Visual Studio 2008
Jquery 1.3.2
Jquery-1.3.2-vsdoc.js

I will list the steps I have followed. Create a New ASP.net application and name as you want. In my case I named it AjaxDemo.

Once the project is created you can copy the Jquery 1.3.2 and Jquery-1.3.2-vsdoc file into the project folder. Add a new WebService named WebService1.asmx.

Now import two namespaces for enabling the WebService to be accessed from JavaScript.

using System.Web.Script.Serialization;

using System.Web.Script.Services;

The class Webservice1 has to be marked as ScriptService .This is very important.

[System.Web.Script.Services.ScriptService]

public class WebService1 : System.Web.Services.WebService

{

Next the method needs to be marked as WebMethod as usual and ScriptMethod for enabling client access.

[WebMethod]

[ScriptMethod(UseHttpGet = false, ResponseFormat = ResponseFormat.Json)]

public string HelloWorld()

{

Since I am using the JSON as the data type I am marking the Response format as JSON. The data that has to be sent from server has to be serialized as JSON. I have give a sample below.

JavaScriptSerializer js = new JavaScriptSerializer();// Use this when formatting the data as JSON

return js.Serialize("Hello World");

That's all needed on server side. Next we will look at JQUERY client invokation.

<head>

$.ajax({ type: "GET",

contenttype: "application/json; charset=utf-8",

data: "{null}",

url: "WebService1.asmx/HelloWorld",

dataTyp:"json",

success: function(res) {

$("#Text1").val(res.text);

error: function(err) {

alert(err);

}

});

</script>

</head>

<body>

</form>

</body>

</html>

As you can see from above $.ajax is used to call the WebService. The data send should be as "{null}". This is very important otherwise it wont work.

Here I have assigned the result to only a text box. The same scenario can be applied for complex situations. I will discuss about the complex things later.

Thanks.

Visual S 2010 Beta 2 ISO available

thanigai — Wed, 28 Oct 2009 15:25:50 GMT

Visual Studio 2010 Beta 2 is released. I tried searching for the ISo copy and could not find one. Finally they released the ISO copy also.

http://msdn.microsoft.com/hi-in/vstudio/dd582936(en-us).aspx

There under the downloads section you can find the ISO link of rthe Ulitmate,Premium and professional edition.

Thanks,

Thani

VS2010 and .Net 4

thanigai — Fri, 23 Oct 2009 20:39:11 GMT

I should definetely share this link by Scott Gu on the updates of VS10. There are some series of 10 posts in them. Please read them .

http://weblogs.asp.net/scottgu/archive/2009/08/25/vs-2010-and-net-4-series.aspx

VS2010 Intellisense Update

thanigai — Fri, 23 Oct 2009 20:29:14 GMT

Hi All,

I got a chance to read the Blog from Scott Gu

Very nice post explaining the new intellisense features available in VS 2010. I am sure MS would have done a good R&D in this field and came up with the solution. The intellisense members are now searched based on

1. Events,Methods and Properties listing all of them .We don had this feature previously.

2.Keyword searching .For example typing Mouse will list all the events and methods related to that.

3.Type searching . When we type the name like Hash the all the types are listed filetring the events and other unwanted things.

4. Pascal Intellisense. Typing "LI" both are caps here. will list the ListItem and other related things here.

Please visit the link I have give below.

Thanks,

Thani

Visual Studio 2010 beta 2

thanigai — Thu, 22 Oct 2009 13:39:27 GMT

Wednesday is a fantastic day for me as Visual Studio 2010 Beta 2 is launched (though MSDN subscribers got them on tuesday itself). I tried download them and installed. I would like to give some useful links where youcan get some info on them for reference.

http://www.microsoft.com/visualstudio/en-us/products/2010/default.mspx - This is a web install and does nto have an ISO

http://www.microsoft.com/express/future/ - This page has the express editions and have an downloadable ISO copy

Visual Studio 2010 and .Net Framework 4.0 walkthrough

ASP.Net 4 Beta 2

Som blog posts on them

http://blogs.msdn.com/webdevtools/archive/2009/10/21/web-tools-beta-2-overview.aspx

http://stephenwalther.com/blog/archive/2009/10/21/the-microsoft-ajax-library-and-visual-studio-beta-2.aspx

http://geekswithblogs.net/ranganh/archive/2009/10/21/visual-studio-2010-beta-2-ndash-a-first-look-at.aspx

Thanks,

Thani