Step 2 of 3: Adding a Web Service

In this step you'll add a data source to your project, and begin the process of binding the grid.

To set up your project, complete the following steps:

1. Navigate to the Solution Explorer, right-click the StealthPaging.Web project, and select Add Reference from the context menu.

1. In the Add Reference dialog box locate the System.Runtime.Serialization assembly and click the OK button to add a reference to your project. The dialog box will close and the reference will be added.

2. In the Solution Explorer right-click the StealthPaging.Web project, and select Add | New Item.

3. In the left pane of the Add New Item dialog box, select the Web item.

4. In the templates list, select Web Service, name the Web Service "DataWebService.asmx", and click the Add button. Note that the Web Service file will be added to your project and automatically opened.

5. In the DataWebService.asmx file, add the following using statements at the top of the file:

· Visual Basic

Imports System.Runtime.Serialization

· C#

using System.Runtime.Serialization;

6. In the DataWebService.asmx file, replace the code in the StealthPaging.Web namespace with the following::

· Visual Basic

' To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.

' <System.Web.Script.Services.ScriptService()> _

<System.Web.Services.WebService(Namespace:="http://tempuri.org/")> _

<System.Web.Services.WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _

<ToolboxItem(False)> _

Public Class DataWebService

Inherits System.Web.Services.WebService

<WebMethod()> _

Public Function GetData(startRow As Integer, endRow As Integer) As List(Of ServerPerson)

Dim personList As New List(Of ServerPerson)()

For i As Integer = startRow To endRow - 1

personList.Add(New ServerPerson() With { _

.FirstName = String.Format("First Name {0}", i), _

.LastName = String.Format("Last Name {0}", i), _

.Age = i, _

.City = String.Format("City {0}", i) _

})

Return personList

End Function

End Class

<DataContract> _

Public Class ServerPerson

Private _firstName As String

<DataMember> _

Public Property FirstName() As String

Get

Return _firstName

End Get

Set

_firstName = value

End Set

End Property

Private _lastName As String

<DataMember> _

Public Property LastName() As String

Get

Return _lastName

End Get

Set

_lastName = value

End Set

End Property

Private _age As Integer

<DataMember> _

Public Property Age() As Integer

Get

Return _age

End Get

Set

_age = value

End Set

End Property

Private _city As String

<DataMember> _

Public Property City() As String

Get

Return _city

End Get

Set

_city = value

End Set

End Property

End Class

· C#

namespace StealthPaging.Web

{

/// <summary>

/// Summary description for DataWebService

/// </summary>

[WebService(Namespace = "http://tempuri.org/")]

[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]

[System.ComponentModel.ToolboxItem(false)]

// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.

// [System.Web.Script.Services.ScriptService]

public class DataWebService : System.Web.Services.WebService

{

[WebMethod]

public List<ServerPerson> GetData(int startRow, int endRow)

{

List<ServerPerson> personList = new List<ServerPerson>();

for (int i = startRow; i < endRow; i++)

{

personList.Add(new ServerPerson()

{

FirstName = string.Format("First Name {0}", i),

LastName = string.Format("Last Name {0}", i),

Age = i,

City = string.Format("City {0}", i)

});

}

return personList;

}

[DataContract]

public class ServerPerson

{

private string _firstName;

[DataMember]

public string FirstName

{

get { return _firstName; }

set { _firstName = value; }

}

private string _lastName;

[DataMember]

public string LastName

{

get { return _lastName; }

set { _lastName = value; }

}

private int _age;

[DataMember]

public int Age

{

get { return _age; }

set { _age = value; }

}

private string _city;

[DataMember]

public string City

{

get { return _city; }

set { _city = value; }

}

This code will create a new list that will be used to populate the C1DataGrid control.

7. Save your application, right-click the StealthPaging.Web project, and select Build from the context menu. Note that you'll now be done with the StealthPaging.Web project and will return to working with the StealthPaging project.

What You've Accomplished

In this step you've added a data source to your project and created a Web Service. In the next step you'll finish connecting the Web Service to your project and you'll run your application.