IList Generic Interface

IList Generic Interface represents a collection of objects that can be individually accessed by index.

This example demonstrates how to use IList Generic Interface to store data.
IList Generic Interface represents a collection of objects that can be individually accessed by index.
First, you will need to import the System.Collections.Generic namespace.
using System.Collections.Generic;

The System.Collections.Generic namespace contains interfaces and classes that define generic collections, which allow users to create strongly typed collections that provide better type safety and performance than non-generic strongly typed collections.

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We use the BindData function to do the work.
We use GridView control to display data. The code as follow:

private void BindData()
{
IList<UserInfo> userinfos = new List<UserInfo>();
for (int i = 0; i < 5; i++)
{
UserInfo info = new UserInfo("username" + i.ToString(), "password" + i.ToString());
userinfos.Add(info);
}
this.GridView1.DataSource = userinfos;
this.GridView1.DataBind();
}

I add one userinfo custom class which is used to store data.The code as follow:

using System;

/// <summary>
/// UserInfo
/// </summary>
public class UserInfo
{
private string _userName = string.Empty;
private string _password = string.Empty;

public UserInfo()
{

}

public UserInfo(string userName, string password)
{
this._userName = userName;
this._password = password;
}

public string UserName
{
get
{
return _userName;
}
}

public string Password
{
get
{
return _password;
}
}
} 
 

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The front end TemplateCsharp.aspx page looks something like this:

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" BackColor="White" BorderColor="#E7E7FF" BorderStyle="None" BorderWidth="1px" CellPadding="3" GridLines="Horizontal">
<FooterStyle BackColor="#B5C7DE" ForeColor="#4A3C8C" />
<Columns>
<asp:BoundField DataField="UserName" HeaderText="UserName" />
<asp:BoundField DataField="Password" HeaderText="Password" />
</Columns>
<RowStyle BackColor="#E7E7FF" ForeColor="#4A3C8C" />
<SelectedRowStyle BackColor="#738A9C" Font-Bold="True" ForeColor="#F7F7F7" />
<PagerStyle BackColor="#E7E7FF" ForeColor="#4A3C8C" HorizontalAlign="Right" />
<HeaderStyle BackColor="#4A3C8C" Font-Bold="True" ForeColor="#F7F7F7" />
<AlternatingRowStyle BackColor="#F7F7F7" />
</asp:GridView> 

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The flow for the code behind page is as follows.

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Collections.Generic;

public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
BindData();
}

private void BindData()
{
IList<UserInfo> userinfos = new List<UserInfo>();
for (int i = 0; i < 5; i++)
{
UserInfo info = new UserInfo("username" + i.ToString(), "password" + i.ToString());
userinfos.Add(info);
}
this.GridView1.DataSource = userinfos;
this.GridView1.DataBind();
}
}