A digital paging Control

Using system;
Using system. Collections. Generic;
Using system. text;
Using system. Web. UI. webcontrols;
Using system. Web. UI;
Using system. componentmodel;

Namespace sky_web.common
{
// Digital paging Control
[Toolboxdata ("<{0}: sky_page runat = Server> </{0}: sky_page>")]
Public class sky_page: webcontrol, ipostbackeventhandler
{
Private int pageindex = 0; // index of the current page
Private int pagesize = 10; // number of entries per page
Private int pagecount = 0; // total number of pages
Private int showpages = 8; // Number of displayed pages

[Category ("Total number of pages")]
Public int pagecount
{
Set
{
If (value <0)
PageCount = 0;
Else
PageCount = value;
}
Get {return pageCount ;}
}
[Category ("Number of displayed pages")]
Public int ShowPages
{
Set
{
If (value <= 0)
Showpages = 8;
Else
Showpages = value;
}
Get {return showpages ;}
}
[Category ("number of entries per page")]
Public int pagesize
{
Set
{
If (value <= 0)
Pagesize = 10;
Else
Pagesize = value;
}
Get {return pagesize ;}
}
[Category ("Current page index")]
Public int pageindex
{
Set
{
If (value <= 0)
Pageindex = 0;
Else
Pageindex = value;
}
Get {return pageindex ;}
}

Private Static readonly object eventcommand = new object ();
Public event commandeventhandler command
{
Add
{
Base. Events. addhandler (eventcommand, value );
}
Remove
{
Base. Events. removehandler (eventcommand, value );
}
}

Protected virtual void oncommand (commandeventargs E)
{
Commandeventhandler handler = (commandeventhandler) base. events [eventcommand];
If (handler! = NULL)
{
Handler (this, e );
}
}
// Display the page
Protected override void render (htmltextwriter output)
{
If (pageindex <0 | pageindex> pagecount-1)
Pageindex = 0;

Output. Write ("<Table width =/" 100%/"border =/" 0/"cellpadding =/" 0/"cellspacing =/" 0/"> ");
Output. Write ("<tr> ");
Output. Write ("<TD align =/" right/"> ");
Output. write ("<input id = 'button1' type = 'button 'style = 'border: 0; Background-color: White; text-align: center; Vertical-align: bottom '");
Output. Write ("value = 'homepage' onclick =/" "+ getaction (0) +"/"/> ");
Output. Write ("If (pageIndex> 0) // you can also go up
Output. Write ("style = 'cursor: pointer 'onclick =/" "+ getAction (pageIndex-1) + "/"");
Output. Write ("> ");
// Find the maximum and minimum indexes to be displayed
Int maxIndex = pageIndex;
Int minindex = pageindex;
Showpages --; // remove the current page
Bool notify;
While (showpages> 0)
{
Notify = true;
If (maxindex + 1 <pagecount & showpages> 0) // find a page forward
{
Maxindex ++;
Showpages --;
Notify = false;
}
If (minindex-1> = 0 & showpages> 0) // locate a page
{
Minindex --;
Showpages --;
Notify = false;
}
If (notify) // No search is found, indicating the total number of showpages>
Break;
}
For (INT Index = minindex; index <= maxindex; index ++) // display the page number
{
If (index! = Pageindex)
Output. write ("<a href =/" "+ getaction (INDEX) +"/">" + (index + 1 ). tostring () + "</a> ");
Else
Output. Write (index + 1). ToString () + "");
}
Output. Write ("If (pageIndex <pageCount-1) // you can go down
Output. Write ("style = 'cursor: pointer 'onclick =/" "+ getAction (pageIndex + 1) + "/"");
Output. Write ("> </td> ");
Output. Write ("<td style = 'align: left; '> ");
Output. write ("<input id = 'button2' type = 'button 'style = 'border: 0; background-color: White; text-align: left; vertical-align: bottom '");
Output. Write ("value = 'last page' onclick =/" "+ getAction (pageCount-1) +"/"/> ");
Output. Write ("Total" + pageCount. ToString () + "page ");
Output. Write ("</td> </tr> </table> ");
}

Private string getAction (int index)
{
Return "javascript:" + this. Page. ClientScript. GetPostBackEventReference (this, index. ToString ());
}

# Region IPostBackEventHandler Member

Void IPostBackEventHandler. RaisePostBackEvent (string eventArgument)
{
This. OnCommand (new CommandEventArgs ("", eventArgument ));
}

# Endregion
}
}

Call the. cs page:

Protected void sky_pageappscommand (object sender, CommandEventArgs e)
{

Int index = Convert. ToInt32 (e. CommandArgument );
Sky_Page1.PageSize = 10;
Sky_Page1.PageCount = 8;
Sky_Page1.ShowPages = 8;
Sky_Page1.PageIndex = index;

ViewState ["pageIndex"] = index;
This. Repeater1.DataSource = GetDs (10, index + 1). Tables [0]. DefaultView;
This. Repeater1.DataBind ();

}