Paging using PagedDataSource class

As we all know DataList and Repeater both doesn't have auto paging feature like Gridview ...So to overcome this problem we have a .Net Class PagedDataSource used to do Paging in DataList and Repeater...
I'm going to implement this on Datalist ...So first Let's create a Datalist ...

  <asp:DataList ID="dtlContents" runat="server" RepeatDirection="Vertical" Width="300px"         DataKeyField="Id">
            <ItemTemplate>
                <asp:Label ID="lblContents" runat="server" Text='<%#Eval("Contents")%>'></asp:Label>
            </ItemTemplate>
        </asp:DataList>

For the paging create two linkbuttons and label to show the current Page Number, 


<table border="0" align="right"  style="width: 163px">
<tr>
<td
align="left">
    <asp:LinkButton
ID="lbtnPrev" Runat="server" onclick="lbtnPrev_Click">Prev</asp:LinkButton>
</td>
<td align="center">
<asp:Label ID="lblCurrentPage" runat="server" Text=""></asp:Label>
</td>  
<td align="right">
    <asp:LinkButton ID="lbtnNext"
Runat="server" onclick="lbtnNext_Click">Next</asp:LinkButton>
</td>
</tr>
</table>

Now Bind the Data to Datalist...

public int CurrentPage///Int Variable For Holding the current page...
    {
        get
        {
            //get current page number
            object obj = this.ViewState["_CurrentPage"];
            if (obj == null)
            {
                return 0;
            }
            else
            {
                return (int)obj;
            }
        }
        set
        {
            //set in viewstate the current page number
            this.ViewState["_CurrentPage"] = value;
        }
    } 

public void BindList()
{

//Creating an object for the 'PagedDataSource' for holding the data.  
PagedDataSource objPage = new PagedDataSource();

try
{
 
 DataSet ds = ....\\DataSource.
    
 objPage.AllowPaging = true;
     
 //Assigning the datasource to the 'objPage' object.
 objPage.DataSource = ds.Tables["tblData"].DefaultView;
//Setting the Pagesize
        objPage.PageSize = 4;
        int count= objPage.PageCount;
        objPage.CurrentPageIndex = CurrentPage;
 //to Enable Or Disable The First and Last Button
lbtnNext.Enabled = !objPage.IsLastPage;
        lbtnPrev.Enabled = !objPage.IsFirstPage;
 //Show Current Page Number
lblCurrentPage.Text = "Page " +
         Convert.ToString(CurrentPage + 1) + " of " +
         Convert.ToString(objPage.PageCount);

//Assigning Datasource to the DataList.
dtlContents.DataSource = objPage;
        dtlContents.DataBind();

}
    
catch(Exception ex)
{
 throw ex;
}

}

For Next Button....
protected void lbtnNext_Click(object sender, EventArgs e)
    {
        CurrentPage += 1;
        BindList();
    }
For Previous Button....
 protected void lbtnPrev_Click(object sender, EventArgs e)
   {
            CurrentPage -= 1;
            BindList();
        }

I hope you enjoy this tutorial....