Introduction
This article demonstrates an interesting and very useful concept in typed datasets.
Question: What is select data with typed dataset (XSD) via WCF?
In simple terms "It enables selection of data from a DB using a typed dataset and a WCF Service".
Step 1: Create a new web application
Step 2: Create a new WCF service application
Step 3: Adding a new typed dataset



Step 4: The complete code of IService1.cs is as in the following:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Web;
using System.Text;
namespace WCFService
{
// NOTE: You can use the "Rename" command on the "Refactor" menu to change the interface name "IService1" in both code and config file together.
[ServiceContract]
public interface IService1
{
[OperationContract]
EmployeeDS.tblEmployeeDataTable GetAllEmployees();
}
}
Step 5: The complete code of Service1.svc.cs is as in the following:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Web;
using System.Text;
namespace WCFService
{
// NOTE: You can use the "Rename" command on the "Refactor" menu to change the class name "Service1" in code, svc and config file together.
public class Service1 : IService1
{
public EmployeeDS.tblEmployeeDataTable GetAllEmployees()
{
EmployeeDS.tblEmployeeDataTable objEmployeeTable = objAdapter.GetData();
return objEmployeeTable;
}
#region Instance Membersreadonly EmployeeDSTableAdapters.tblEmployeeTableAdapter objAdapter = new EmployeeDSTableAdapters.tblEmployeeTableAdapter();
#endregion
}
}
Step 6: Adding a service reference
Step 7: The complete code of WebForm1.aspx is as in the following:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="SelectData_XSD_WCFService.WebForm1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<style type="text/css">
.grid
{
margin-top: 50px;
}
</style>
<title></title>
</head>
<body>
<form id="form1" runat="server">
<center>
<div>
<table>
<tr>
<td colspan="2" align="center">



Gowtham RajamanickamPosted Apr 7, 2015, 6:25 AM
good one..