How to build web service and use web service in sharepoint

How to build web service and push on sharepoint
Open visual studio 2010 | New Project

On Web template, choose .NET Framework 3.5 from dropdownlist then choose ASP.NET Web Service Application project and provide name is HelloWorld

Structure of project as follows

Open Service1.asmx.cs and view default code

Typing F5 and click to method HelloWorld

Click Invoke

Result as follow

Right click Project | properties

Choose Category Application then click to button Assembly information …

Fill full information, then click ok

Continue, choose category Signing

Check to checkbox “Sign the assembly” and choose new  strong name key from dropdownlist below

Input name’s key file name and uncheck “Protect my key file with a password”

Copy Dll in bin folder of your project (drag and drop to bin folder to assembly folder)

After copy dll to here, right click to .dll | properties

Copy Public token key below and paste anywhere example notepad

Open Service1 by notepad (Image 15)

You will see class as follows

Append this segment code “,

 HelloWord, Version=1.0.0.0, Culture=neutral, PublicKeyToken=140f54b64af2de0f”

 in class as follow

Copy service1 to folder “C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\TEMPLATE\LAYOUTS” as follows

Open visual studio command prompt (2010) and input  cd c:\ and type enter

Input: Disco http://quochung-axioo:90 /_layouts/Service1.asmx

After Disco successful, automatically the service1.asmx will push on sharepoint

Type link http://quochung-axioo:90 /_layouts/Service1.asmx on address bar and see result as follows

How to call web service by web part

New Visual Webpart

Choose “Deploy as a farm solution”

Right click to reference | Add Service Reference …

Click button Advanced…

Click button Add Web Reference…

Paste “http://quochung-axioo:90 /_layouts/Service1.asmx” to URL then click button GO

Login by administrator account of sharepoint

Click Add reference

Web services was added

Open visualWebpartUserControl.ascx  | drag and drop literal to here

Copy this segment code to Page_Load event as follows:


            HelloWordService.Service1 helloWord = new HelloWordService.Service1();
            Literal1.Text= helloWord.HelloWorld();

Build and deploy project you will meet error

How to solve

Go to Central  Admin | click to “Manage web applications” link then click to your web application – On ribbon choose Icon Authentication Provides  (Image 35)

Dialog appear, click to “Default” link

Check to “Enable anonymous access”

Back to list your application, on you web application choose Icon Anonymous Policy on ribbon

In anonymous User Policy:  choose radio button “None - policy”

Go to your web application

Site Actions | Site Settings | Site Permissions

On ribbon click Icon Anonymous Access

In Anonymous user can access: choose “Entire Web site”

Refresh page which contain webpart call web service and you see result display as follows