?? ccpager.cs
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namespace Employee_Directory
{
using System;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
public class PagingData
{
private string page;
private bool enabled;
public PagingData(string page, bool enabled){
this.page = page;
this.enabled = enabled;
}
public string Page {
get {return page;}
}
public bool Enabled
{
get
{
return enabled;
}
}
}
public delegate void NavigateCompletedHandler(object sender, int CurrentPage);
public abstract class CCPager : System.Web.UI.UserControl
{
public bool ShowFirst,ShowLast,ShowPrev,ShowNext,ShowTotal;
public string ShowFirstCaption,ShowLastCaption,ShowPrevCaption,ShowNextCaption,ShowTotalString,style,CssClass;
public int MaxPage,CurrentPage=1,NumberOfPages;
public enum PagerStyleEnum {NoPager,PageNumberOnly,Centered,Moved}
public PagerStyleEnum PagerStyle;
protected System.Web.UI.WebControls.LinkButton lnkFirst;
protected System.Web.UI.WebControls.LinkButton lnkPrev;
protected System.Web.UI.WebControls.LinkButton lnkNext;
protected System.Web.UI.WebControls.LinkButton lnkLast;
protected System.Web.UI.WebControls.Label lblNext;
protected System.Web.UI.WebControls.Label lblLast;
protected System.Web.UI.WebControls.Label ClosePar;
protected System.Web.UI.WebControls.Label lblShowTotal;
protected System.Web.UI.WebControls.Label lblFirst;
protected System.Web.UI.WebControls.Label OpenPar;
protected System.Web.UI.WebControls.Label Current;
protected System.Web.UI.WebControls.Repeater Repeater1;
protected System.Web.UI.WebControls.Label lblPrev;
protected bool PagerStartPressed=false,PagerEndPressed=false;
public event NavigateCompletedHandler NavigateCompleted;
public CCPager()
{
this.Init += new System.EventHandler(Page_Init);
}
private void Page_Load(object sender, System.EventArgs e)
{
//使用代碼初始化頁面
if(!IsPostBack)
{
if(CssClass!=null)
{
try
{
lnkFirst.CssClass=CssClass;
lnkLast.CssClass=CssClass;
lnkPrev.CssClass=CssClass;
lnkNext.CssClass=CssClass;
lblPrev.CssClass=CssClass;
lblNext.CssClass=CssClass;
lblLast.CssClass=CssClass;
lblFirst.CssClass=CssClass;
lblShowTotal.CssClass=CssClass;
}
catch{}
}
if(style!=null)
{string[] pairs=style.Split(new Char[] {';'});
string key,val;
for(int i=0;i<pairs.Length;i++)
{
try
{key=pairs[i].Split(new Char[] {':'})[0].Trim();
val=pairs[i].Split(new Char[] {':'})[1].Trim();
lnkFirst.Style.Add(key,val);
lnkLast.Style.Add(key,val);
lnkPrev.Style.Add(key,val);
lnkNext.Style.Add(key,val);
lblPrev.Style.Add(key,val);
lblNext.Style.Add(key,val);
lblLast.Style.Add(key,val);
lblFirst.Style.Add(key,val);
lblShowTotal.Style.Add(key,val);
}
catch{}
}
}
ViewState["MaxPage"]=MaxPage;
lnkFirst.Text=ShowFirstCaption ;
lnkPrev.Text=ShowPrevCaption ;
lnkNext.Text=ShowNextCaption ;
lnkLast.Text=ShowLastCaption ;
lblPrev.Text=ShowPrevCaption ;
lblNext.Text=ShowNextCaption ;
lblLast.Text=ShowLastCaption ;
lblFirst.Text=ShowFirstCaption ;
lblShowTotal.Text=ShowTotalString+' '+MaxPage.ToString();
Refresh_Components();
}
else
{
MaxPage=(int)ViewState["MaxPage"];
try{
CurrentPage=(int)ViewState["CurrPage"];}
catch{CurrentPage=1;}
}
}
//刷新過程
private void Refresh_Components()
{
if(ShowFirst) First_Create();
if(ShowLast) Last_Create();
if(ShowPrev) Prev_Create();
if(ShowNext) Next_Create();
Show_Pager();
NavigateCompleted(this,CurrentPage);
}
protected void Repeater1_ItemDataBound(object source, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem) {
if(CssClass!=null){
try
{
((LinkButton)e.Item.FindControl("LinkButton1")).CssClass=CssClass;
}
catch{}
}
if(style!=null)
{string[] pairs=style.Split(new Char[] {';'});
string key,val;
for(int i=0;i<pairs.Length;i++)
{
try
{key=pairs[i].Split(new Char[] {':'})[0].Trim();
val=pairs[i].Split(new Char[] {':'})[1].Trim();
((LinkButton)e.Item.FindControl("LinkButton1")).Style.Add(key,val);
}
catch{}
}
}
}
}
private void Show_Pager()
{ System.Collections.ArrayList values = new System.Collections.ArrayList();
int StartRange;
switch(PagerStyle)
{
case PagerStyleEnum.PageNumberOnly:
Repeater1.Visible=false;
Current.Visible=true;
Current.Text="當前第" + CurrentPage.ToString() + "頁";
lblShowTotal.Visible =ShowTotal;
break;
case PagerStyleEnum.Centered:
Repeater1.Visible=true;
Current.Visible=false;
StartRange=(CurrentPage<=(NumberOfPages/2))?1:CurrentPage-(NumberOfPages/2);
StartRange=(StartRange>=MaxPage-NumberOfPages+1)?MaxPage-NumberOfPages+1:StartRange;
StartRange=(StartRange<=0)?1:StartRange;
for(int i=StartRange;i<(StartRange+NumberOfPages)&&i<=MaxPage;i++)
{values.Add(new PagingData(i.ToString(), CurrentPage!=i));}
Repeater1.DataSource = values;
Repeater1.DataBind();
lblShowTotal.Visible =ShowTotal;
break;
case PagerStyleEnum.Moved:
StartRange=((CurrentPage-1)/NumberOfPages)*NumberOfPages+1;
if(StartRange!=1) values.Add(new PagingData('<'+(StartRange-1).ToString(), true));
for(int i=StartRange;(i<(StartRange+NumberOfPages))&&i<=MaxPage;i++)
{values.Add(new PagingData(i.ToString(), CurrentPage!=i));}
if(StartRange+NumberOfPages<=MaxPage) values.Add(new PagingData((StartRange+NumberOfPages).ToString()+'>', true));
Repeater1.DataSource = values;
Repeater1.DataBind();
Repeater1.Visible=true;
Current.Visible=false;
lblShowTotal.Visible =ShowTotal;
break;
case PagerStyleEnum.NoPager:
Repeater1.Visible=false;
Current.Visible=false;
OpenPar.Visible=false;
ClosePar.Visible=false;
lblShowTotal.Visible =false;
break;
}
}
private void First_Create()
{
if (CurrentPage==1){lblFirst.Visible=true;lnkFirst.Visible=false;}
else{lblFirst.Visible=false;lnkFirst.Visible=true;};
}
private void Last_Create()
{
if (CurrentPage==MaxPage){lblLast.Visible=true;lnkLast.Visible=false;}
else{lblLast.Visible=false;lnkLast.Visible=true;};
}
private void Next_Create()
{
if (CurrentPage==MaxPage){lblNext.Visible=true;lnkNext.Visible=false;}
else{lblNext.Visible=false;lnkNext.Visible=true;};
}
private void Prev_Create()
{
if (CurrentPage==1){lblPrev.Visible=true;lnkPrev.Visible=false;}
else{lblPrev.Visible=false;lnkPrev.Visible=true;};
}
private void Page_Init(object sender, EventArgs e)
{
InitializeComponent();
}
private void InitializeComponent()
{
this.lnkLast.Click += new System.EventHandler(this.lnkLast_Click);
this.lnkNext.Click += new System.EventHandler(this.lnkNext_Click);
this.lnkFirst.Click += new System.EventHandler(this.lnkFirst_Click);
this.lnkPrev.Click += new System.EventHandler(this.lnkPrev_Click);
this.Load += new System.EventHandler(this.Page_Load);
}
private void lnkFirst_Click(object sender, System.EventArgs e)
{
CurrentPage=1;
ViewState["CurrPage"]=CurrentPage;
Refresh_Components();
}
private void lnkPrev_Click(object sender, System.EventArgs e)
{
CurrentPage--;
ViewState["CurrPage"]=CurrentPage;
Refresh_Components();
}
private void lnkNext_Click(object sender, System.EventArgs e)
{
CurrentPage++;
ViewState["CurrPage"]=CurrentPage;
Refresh_Components();
}
private void lnkLast_Click(object sender, System.EventArgs e)
{
CurrentPage=MaxPage;
ViewState["CurrPage"]=CurrentPage;
Refresh_Components();
}
protected void Repeater1_ItemCommand(Object Sender, RepeaterCommandEventArgs e)
{
if(PagerStyle!=PagerStyleEnum.Moved){
CurrentPage=Int16.Parse(e.CommandArgument.ToString ());
ViewState["CurrPage"]=CurrentPage;
Refresh_Components();
}else{
string temp=e.CommandArgument.ToString();
PagerStartPressed=temp.StartsWith("<");
PagerEndPressed=temp.EndsWith(">");
CurrentPage=PagerStartPressed?Int16.Parse(temp.TrimStart('<')):PagerEndPressed?Int16.Parse(temp.ToString().TrimEnd('>')):Int16.Parse(temp);
ViewState["CurrPage"]=CurrentPage;
Refresh_Components();
}
}
}
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