asp.net user control for URL pagination

asp.net| Pagination | The control recently made a photo album program frequently needs paging, so I want to write a user control out.

The code is as follows:

Autopage.ascx page

<%@ control language= "C #" autoeventwireup= "false" codebehind= "AutoPage.ascx.cs" inherits= "album". AutoPage "targetschema=" http://schemas.microsoft.com/intellisense/ie5 "%>
<table border= "0" cellpadding= "0" cellspacing= "0" >
<tr>
&LT;TD valign= "Middle" height= ">" <asp:label id= "Lb_itemcount" forecolor= "Red" runat= "Server" ></asp: Label> Strip Record </td>
&LT;TD valign= "Middle" height= ><asp:hyperlink id= "Hpl_first" runat= "Server" > Home </asp:hyperlink> </td>
&LT;TD valign= "Middle" height= "><asp:hyperlink id=" Hpl_prev "runat=" "Server" > Prev </asp:hyperlink> </td>
&LT;TD valign= "Middle" height= "> Current <asp:label id=" Lb_currentpage "runat=" Server "></asp:label> page/Total <asp:label id= "Lb_pagecount" runat= "Server" ></asp:label> page </td>
&LT;TD valign= "Middle" height= "><asp:hyperlink id=" Hpl_next "runat=" "Server" > next page </asp:hyperlink> </td>
&LT;TD valign= "Middle" height= ><asp:hyperlink id= "hpl_last" runat= "Server" > Last </asp:hyperlink> </td>
&LT;TD valign= "Middle" height= ><asp:textbox id= "txb_page" runat= "Server" width= "32px" borderstyle= "Solid" Borderwidth= "1px"
Bordercolor= "Silver" ></asp:textbox></td>
&LT;TD valign= "Middle" height= ><asp:imagebutton id= "Btn_go" runat= "Server" imageurl= "Album_images/go.gif" ></asp:ImageButton></td>
&LT;TD valign= "Middle" height= ><asp:label id= "Lb_url" runat= "Server" visible= "False" ></asp:label ><asp:label id= "Lb_params" runat= "Server" visible= "False" ></asp:Label></td>
</tr>
</table>

AutoPage.ascx.cs page

Namespace album
{
Using System;
Using System.Data;
Using System.Drawing;
Using System.Web;
Using System.Web.UI.WebControls;
Using System.Web.UI.HtmlControls;
Using System.Data.SqlClient;

<summary>
A summary description of UC.
</summary>
public class AutoPage:System.Web.UI.UserControl
{
protected System.Web.UI.WebControls.HyperLink Hpl_first;
protected System.Web.UI.WebControls.HyperLink Hpl_prev;
protected System.Web.UI.WebControls.HyperLink Hpl_next;
protected System.Web.UI.WebControls.Label lb_currentpage;
protected System.Web.UI.WebControls.Label Lb_pagecount;
protected System.Web.UI.WebControls.HyperLink hpl_last;
public int pagesize;
public string Pagep;
protected System.Web.UI.WebControls.TextBox txb_page;
protected System.Web.UI.WebControls.Label Lb_url;
protected System.Web.UI.WebControls.Label Lb_itemcount;
public string URL;
protected System.Web.UI.WebControls.Label lb_params;
protected System.Web.UI.WebControls.ImageButton Btn_go;
public string Params;

private void Page_Load (object sender, System.EventArgs e)
{

}

Public PagedDataSource DataBind (DataTable DT)
{
Lb_url. Text = URL;
Lb_params.text = Params;
Create a paging class
PagedDataSource objpage = new PagedDataSource ();
Setting up a data source
Objpage.datasource = dt. DefaultView;
Allow paging
Objpage.allowpaging = true;
Set the number of items to display per page
Objpage.pagesize = PageSize;
Set the index of the current page
int curpage=1;
Try
{
Curpage = Convert.ToInt32 (PAGEP);
if (curpage<1 curpage>objpage.pagecount)
{
Response.Redirect (url+ "page=1" +params);
}
}
Catch
{
Response.Redirect (url+ "page=1" +params);
}
Objpage.currentpageindex = CurPage-1;
Show status information
Lb_itemcount.text = dt. Rows.Count.ToString ();
Lb_currentpage.text = Curpage.tostring ();
Lb_pagecount.text =objpage.pagecount.tostring ();

If the current page is not home
if (!objpage.isfirstpage)
{
Hpl_prev.navigateurl=url + "? Page= "+ convert.tostring (CurPage-1) +params;
Hpl_first.navigateurl=url + "? Page=1 "+PARAMS;
}
If the current page is not the last page
if (!objpage.islastpage)
{
hpl_next.navigateurl=url+ "? Page= "+ convert.tostring (curpage+1) +params;
Hpl_last.navigateurl=url + "? Page= "+objpage.pagecount.tostring () +params;
}
return objpage;
}


Code generated #region the Web forms Designer
Override protected void OnInit (EventArgs e)
{
//
CodeGen: This call is required for the ASP.net Web forms Designer.
//
InitializeComponent ();
Base. OnInit (e);
}

<summary>
Designer supports the desired method-do not use the Code Editor
Modify the contents of this method.
</summary>
private void InitializeComponent ()
{
This.btn_go. Click + + new System.Web.UI.ImageClickEventHandler (This.btn_go_click);
This. Load + = new System.EventHandler (this. Page_Load);

}
#endregion

private void Btn_go_click (object sender, System.Web.UI.ImageClickEventArgs e)
{
Response.Redirect (Lb_url. Text+ "? Page= "+txb_page.text+lb_params.text);
}


}
}

Calls need to set a few parameters pagesize (number of data per page), PAGEP (passed the paging parameter), PARMP (other request.qureystring parameters), URL (page address)

The Datasource=autopage1.databind of the control (DataTable variable) is only required when binding