Pagination control webpager [ZT]

Click here to download the DLL file> webpager. dll.
1. webpager. CS

Using system;
Using system. Web;
Using system. Web. UI;
Using system. Web. UI. webcontrols;
Using system. componentmodel;

[Assembly: tagprefix ("webpager", "WP")]
namespace Xiaoqiao. controls. webpager
{< br> Public Delegate void webpagereventhandler (Object sender, eventargs E);
///

/// abstract description of webpager.
//
[defaultproperty ("currentpageindex")]
[toolboxdata ("<{0 }: webpagercontrol runat = Server> ")]
[designer (" Xiaoqiao. controls. webpager. webpagerdesigner ")]
[parsechildren (false)]
public class webpagercontrol: webcontrol, inamingcontainer, ipostbackeventhandler
{< br> int m_currentpageindex = 0;
int m_pagecount = 0;
int m_pagesize = 1;
int m_recordcount = 0;
int m_navnums = 10;
system. drawing. color m_currentpagenumcolor = system. drawing. color. red;
system. collections. specialized. namevaluecollection _ AA;

String m_firstpagetext = "| & lt ;";
String m_prevpagetext = "& lt ;";
String m_nextpagetext = "& gt ;";
String m_lastpagetext = "& gt; | ";

// Define event proxy
Public event webpagereventhandler pagechange;
Public webpagercontrol ()
{
}
Protected override void render (system. Web. UI. htmltextwriter writer)
{
If (m_pagecount = 0)
{
Base. Render (writer );
Return;
}
Int n = m_navnums;
Int r = m_currentpageindex % N;
Int startindex = (m_CurrentPageIndex-r)/n * N;
Int endindex = startindex + n-1;

If (endindex> = m_pagecount)
Endindex = m_PageCount-1;

If (m_pagecount = 1 | m_currentpageindex = 0)
{
Writer. Write (m_firstpagetext );
Writer. Write ("& nbsp ;");
Writer. Write (m_prevpagetext );
Writer. Write ("& nbsp ;");
}
Else
{
Writer. addattribute (htmltextwriterattribute. href, "javascript:" + Page. getpostbackeventreference (this, "0 "));
Writer. renderbegintag (htmltextwritertag. );
Writer. Write (m_firstpagetext );
Writer. renderendtag ();
Writer. Write ("& nbsp ;");
Writer. addattribute (htmltextwriterattribute. href, "javascript:" + Page. getpostbackeventreference (this, (m_CurrentPageIndex-1). tostring ()));
Writer. renderbegintag (htmltextwritertag. );
Writer. Write (m_prevpagetext );
Writer. renderendtag ();
Writer. Write ("& nbsp ;");
}

For (INT I = startindex; I <= endindex; I ++)
{
String S = I. tostring ();
If (m_currentpageindex = I)
{
Writer. Write ("[" + (I + 1). tostring () + "]");
Writer. Write ("& nbsp ;");
}
Else
{
Writer. addattribute (htmltextwriterattribute. href, "javascript:" + Page. getpostbackeventreference (this, s ));
Writer. renderbegintag (htmltextwritertag. );
Writer. Write ("[" + (I + 1). tostring () + "]");
Writer. renderendtag ();
Writer. Write ("& nbsp ;");
}
}

If (m_pagecount = 1 | m_currentpageindex = (m_PageCount-1 ))
{
Writer. Write (m_nextpagetext );
Writer. Write ("& nbsp ;");
Writer. Write (m_lastpagetext );
}
Else
{
Writer. addattribute (htmltextwriterattribute. href, "javascript:" + Page. getpostbackeventreference (this, (m_currentpageindex + 1). tostring ()));
Writer. renderbegintag (htmltextwritertag. );
Writer. Write (m_nextpagetext );
Writer. renderendtag ();
Writer. Write ("& nbsp ;");
Writer. addattribute (htmltextwriterattribute. href, "javascript:" + Page. getpostbackeventreference (this, (m_PageCount-1). tostring ()));
Writer. renderbegintag (htmltextwritertag. );
Writer. Write (m_lastpagetext );
Writer. renderendtag ();
}

String inputid = This. clientid + "_ pagenum ";
Writer. addattribute (htmltextwriterattribute. type, "text ");
Writer. addattribute (htmltextwriterattribute. Size, "3 ");
Writer. addattrid (htmltextwriterattribute. ID, inputid );
Writer. addattribute (htmltextwriterattribute. Value, (m_currentpageindex + 1). tostring ());
Writer. renderbegintag (htmltextwritertag. Input );
Writer. renderendtag ();
Writer. addattripage (htmltextwriterattribute. onclick, "javascript:" + this. clientid + "_ gotopage ();");
Writer. addattribute (htmltextwriterattribute. type, "button ");
Writer. addattribute (htmltextwriterattribute. value, "go ");
Writer. renderbegintag (htmltextwritertag. Input );
Writer. renderendtag ();

Base. Render (writer );
}

Private void onpagechange (Object sender, eventargs E)
{
This. viewstate ["currentpageindex"] = m_currentpageindex;
If (pagechange! = NULL)
Pagechange (sender, e );
}

Protected override void onload (eventargs E)
{
Object state;

State = This. viewstate ["currentpageindex"];
If (State! = NULL)
M_currentpageindex = convert. toint32 (State );

State = This. viewstate ["recordcount"];
If (State! = NULL)
This. recordcount = convert. toint32 (State );

string inputid = This. clientid + "_ pagenum";
string scriptkey = "webpager_script";
If (! Page. isclientscriptblockregistered (scriptkey)
{< br> string script = "";
page. registerclientscriptblock (scriptkey, script);
}

Base. onload (E );
}

Public int currentpageindex
{
Get {return m_currentpageindex ;}
Set {m_currentpageindex = value ;}
}
Public int recordcount
{
Get
{
Return m_recordcount;
}
Set
{
Int I = value;
This. viewstate ["recordcount"] = I;
M_pagecount = getpages (I, m_pagesize );
M_recordcount = I;
}
}
Public int pagesize
{
Get
{
Return m_pagesize;
}
Set
{
Int I = value;
If (I> 0)
{
M_pagecount = getpages (m_recordcount, I );
M_pagesize = I;
}
Else
Throw (new exception ("pagesize must be greater than zero "));
}
}
Private int getpages (INT total, int pagesize)
{
Int I = total;
Int T;
If (I % pagesize) = 0)
T = I/pagesize;
Else
T = (INT) (I-I % pagesize)/pagesize + 1;
Return T;
}

Public int navnums
{
Get
{
Return m_navnums;
}
Set
{
Int I = value;
If (I> 0)
M_navnums = value;
}
}
Public String firstpagetext
{
Get
{
Return m_firstpagetext;
}
Set
{
M_firstpagetext = value;
}
}
Public String prevpagetext
{
Get
{
Return m_prevpagetext;
}
Set
{
M_prevpagetext = value;
}
}
Public String nextpagetext
{
Get
{
Return m_nextpagetext;
}
Set
{
M_nextpagetext = value;
}
}
Public String lastpagetext
{
Get
{
Return m_lastpagetext;
}
Set
{
M_lastpagetext = value;
}
}
Public System. Drawing. Color currentpagenumcolor
{
Get
{
Return m_currentpagenumcolor;
}
Set
{
M_currentpagenumcolor = value;
}
}

Public System. Collections. Specialized. namevaluecollection AA
{
Get {return _ AA ;}
Set {_ AA = value ;}
}

# Region ipostbackeventhandler Member

Public void raisepostbackevent (string eventargument)
{
// Todo: Add webpagercontrol. raisepostbackevent implementation
Currentpageindex = int. parse (eventargument );
Onpagechange (this, null );
}

# Endregion
}
}

2. webpagerdesigner. CS

Using system;
Using system. Globalization;

namespace Xiaoqiao. Controls. webpager
{< br> ///

// abstract description of webpagerdesigner.
//
public class webpagerdesigner: system. web. UI. design. controldesigner
{< br> Public webpagerdesigner ()
{< BR >}< br> Public override string getdesigntimehtml ()
{< br> webpagercontrol ocontrol = (webpagercontrol) component;
return string. format (cultureinfo. invariantculture,
"

webpagercontrol-{2}

",
ocontrol. width,
ocontrol. height,
ocontrol. ID);
}< BR >}