1
namespace StudentSys
2
...{
3
4 using System;
5 using System.Data;
6 using System.Drawing;
7 using System.Web;
8 using System.Web.UI.WebControls;
9 using System.Web.UI.HtmlControls;
10
11 public abstract class CCPager : System.Web.UI.UserControl
12
...{
13 public bool ShowFirst,ShowLast,ShowPrev,ShowNext,ShowTotal;
14 public string ShowFirstCaption,ShowLastCaption,ShowPrevCaption,ShowNextCaption,ShowTotalString,style,CssClass;
15 public int MaxPage,CurrentPage=1,NumberOfPages;
16 public enum PagerStyleEnum ...{NoPager,PageNumberOnly,Centered,Moved}
17 public PagerStyleEnum PagerStyle;
18 protected System.Web.UI.WebControls.LinkButton lnkFirst;
19 protected System.Web.UI.WebControls.LinkButton lnkPrev;
20 protected System.Web.UI.WebControls.LinkButton lnkNext;
21 protected System.Web.UI.WebControls.LinkButton lnkLast;
22 protected System.Web.UI.WebControls.Label lblNext;
23 protected System.Web.UI.WebControls.Label lblLast;
24 protected System.Web.UI.WebControls.Label ClosePar;
25 protected System.Web.UI.WebControls.Label lblShowTotal;
26 protected System.Web.UI.WebControls.Label lblFirst;
27 protected System.Web.UI.WebControls.Label OpenPar;
28 protected System.Web.UI.WebControls.Label Current;
29 protected System.Web.UI.WebControls.Repeater Repeater1;
30 protected System.Web.UI.WebControls.Label lblPrev;
31 protected bool PagerStartPressed=false,PagerEndPressed=false;
32
33 public event NavigateCompletedHandler NavigateCompleted;
34
35 public CCPager()
36 ...{
37 this.Init += new System.EventHandler(Page_Init);
38
}
39
40 private void Page_Load(object sender, System.EventArgs e)
41 ...{
42 //使用代码初始化页面
43 if(!IsPostBack)
44 ...{
45 if(CssClass!=null)
46 ...{
47 try
48 ...{
49 lnkFirst.CssClass=CssClass;
50 lnkLast.CssClass=CssClass;
51 lnkPrev.CssClass=CssClass;
52 lnkNext.CssClass=CssClass;
53 lblPrev.CssClass=CssClass;
54 lblNext.CssClass=CssClass;
55 lblLast.CssClass=CssClass;
56 lblFirst.CssClass=CssClass;
57 lblShowTotal.CssClass=CssClass;
58 }
59 catch...{}
60 }
61
62
63 if(style!=null)
64 ...{
65 string[] pairs=style.Split(new Char[] ...{';'});
66 string key,val;
67 for(int i=0;i<pairs.Length;i++)
68 ...{
69 try
70 ...{
71 key=pairs[i].Split(new Char[] ...{':'})[0].Trim();
72 val=pairs[i].Split(new Char[] ...{':'})[1].Trim();
73 lnkFirst.Style.Add(key,val);
74 lnkLast.Style.Add(key,val);
75 lnkPrev.Style.Add(key,val);
76 lnkNext.Style.Add(key,val);
77 lblPrev.Style.Add(key,val);
78 lblNext.Style.Add(key,val);
79 lblLast.Style.Add(key,val);
80 lblFirst.Style.Add(key,val);
81 lblShowTotal.Style.Add(key,val);
82 }
83 catch...{}
84 }
85 }
86
87 ViewState["MaxPage"]=MaxPage;
88 lnkFirst.Text=ShowFirstCaption ;
89 lnkPrev.Text=ShowPrevCaption ;
90 lnkNext.Text=ShowNextCaption ;
91 lnkLast.Text=ShowLastCaption ;
92 lblPrev.Text=ShowPrevCaption ;
93 lblNext.Text=ShowNextCaption ;
94 lblLast.Text=ShowLastCaption ;
95 lblFirst.Text=ShowFirstCaption ;
96 lblShowTotal.Text=ShowTotalString+' '+MaxPage.ToString();
97 Refresh_Components();
98 }
99 else
100 ...{
101 MaxPage=(int)ViewState["MaxPage"];
102 try
103 ...{
104 CurrentPage=(int)ViewState["CurrPage"];}
105 catch...{CurrentPage=1;}
106 }
107 }
108 //刷新过程
109 private void Refresh_Components()
110 ...{
111 if(ShowFirst) First_Create();
112 if(ShowLast) Last_Create();
113 if(ShowPrev) Prev_Create();
114 if(ShowNext) Next_Create();
115 Show_Pager();
116
117 if(NavigateCompleted != null)
118 NavigateCompleted(this,CurrentPage);
119
120 }
121
122 protected void Repeater1_ItemDataBound(object source, RepeaterItemEventArgs e)
123 ...{
124 if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
125 ...{
126 if(CssClass!=null)
127 ...{
128 try
129 ...{
130 ((LinkButton)e.Item.FindControl("LinkButton1")).CssClass=CssClass;
131 }
132 catch...{}
133 }
134
135 if(style!=null)
136 ...{
137 string[] pairs=style.Split(new Char[] ...{';'});
138 string key,val;
139 for(int i=0;i<pairs.Length;i++)
140 ...{
141 try
142 ...{
143 key=pairs[i].Split(new Char[] ...{':'})[0].Trim();
144 val=pairs[i].Split(new Char[] ...{':'})[1].Trim();
145 ((LinkButton)e.Item.FindControl("LinkButton1")).Style.Add(key,val);
146
147 }
148 catch...{}
149 }
150 }
151 }
152
153 }
154
155 private void Show_Pager()
156 ...{
157 System.Collections.ArrayList values = new System.Collections.ArrayList();
158 int StartRange;
159 switch(PagerStyle)
160 ...{
161 case PagerStyleEnum.PageNumberOnly:
162 Repeater1.Visible=false;
163 Current.Visible=true;
164 Current.Text="当前第" + CurrentPage.ToString() + "页";
165 lblShowTotal.Visible =ShowTotal;
166 break;
167 case PagerStyleEnum.Centered:
168 Repeater1.Visible=true;
169 Current.Visible=false;
170
171 StartRange=(CurrentPage<=(NumberOfPages/2))?1:CurrentPage-(NumberOfPages/2);
172 StartRange=(StartRange>=MaxPage-NumberOfPages+1)?MaxPage-NumberOfPages+1:StartRange;
173 StartRange=(StartRange<=0)?1:StartRange;
174 for(int i=StartRange;i<(StartRange+NumberOfPages)&&i<=MaxPage;i++)
175 ...{values.Add(new PagingData(i.ToString(), CurrentPage!=i));}
176
177 Repeater1.DataSource = values;
178 Repeater1.DataBind();
179 lblShowTotal.Visible =ShowTotal;
180 break;
181 case PagerStyleEnum.Moved:
182
183 StartRange=((CurrentPage-1)/NumberOfPages)*NumberOfPages+1;
184 if(StartRange!=1) values.Add(new PagingData('<'+(StartRange-1).ToString(), true));
185 for(int i=StartRange;(i<(StartRange+NumberOfPages))&&i<=MaxPage;i++)
186 ...{values.Add(new PagingData(i.ToString(), CurrentPage!=i));}
187 if(StartRange+NumberOfPages<=MaxPage) values.Add(new PagingData((StartRange+NumberOfPages).ToString()+'>', true));
188
189 Repeater1.DataSource = values;
190 Repeater1.DataBind();
191
192 Repeater1.Visible=true;
193 Current.Visible=false;
194 lblShowTotal.Visible =ShowTotal;
195 break;
196 case PagerStyleEnum.NoPager:
197 Repeater1.Visible=false;
198 Current.Visible=false;
199 OpenPar.Visible=false;
200 ClosePar.Visible=false;
201 lblShowTotal.Visible =false;
202 break;
203 }
204
205 }
206 private void First_Create()
207 ...{
208 if (CurrentPage==1)...{lblFirst.Visible=true;lnkFirst.Visible=false;}
209 else...{lblFirst.Visible=false;lnkFirst.Visible=true;};
210 }
211
212 private void Last_Create()
213 ...{
214 if (CurrentPage==MaxPage)...{lblLast.Visible=true;lnkLast.Visible=false;}
215 else...{lblLast.Visible=false;lnkLast.Visible=true;};
216 }
217
218 private void Next_Create()
219 ...{
220 if (CurrentPage==MaxPage)...{lblNext.Visible=true;lnkNext.Visible=false;}
221 else...{lblNext.Visible=false;lnkNext.Visible=true;};
222 }
223
224 private void Prev_Create()
225 ...{
226 if (CurrentPage==1)...{lblPrev.Visible=true;lnkPrev.Visible=false;}
227 else...{lblPrev.Visible=false;lnkPrev.Visible=true;};
228 }
229
230 private void Page_Init(object sender, EventArgs e)
231 ...{
232 InitializeComponent();
233 }
234
235 private void InitializeComponent()
236 ...{
237 this.Load += new System.EventHandler(this.Page_Load);
238
239 }
240
241 private void lnkFirst_Click(object sender, System.EventArgs e)
242 ...{
243 CurrentPage=1;
244 ViewState["CurrPage"]=CurrentPage;
245 Refresh_Components();
246 }
247
248 private void lnkPrev_Click(object sender, System.EventArgs e)
249 ...{
250 CurrentPage--;
251 ViewState["CurrPage"]=CurrentPage;
252 Refresh_Components();
253
254 }
255
256 private void lnkNext_Click(object sender, System.EventArgs e)
257 ...{
258 CurrentPage++;
259 ViewState["CurrPage"]=CurrentPage;
260 Refresh_Components();
261
262 }
263
264 private void lnkLast_Click(object sender, System.EventArgs e)
StudentSys/UserControl/CCPager.cs，打开代码结构图