1using System;
  2using System.Data;
  3using System.Configuration;
  4using System.Collections;
  5using System.Web;
  6using System.Web.Security;
  7using System.Web.UI;
  8using System.Web.UI.WebControls;
  9using System.Web.UI.WebControls.WebParts;
 10using System.Web.UI.HtmlControls;
 11using System.IO;
 12using System.Globalization;
 13using System.Reflection;
 14public partial class search : System.Web.UI.Page, ICallbackEventHandler
 15...{
 16    //该源码下载自www.51aspx.com(５１ａｓｐｘ．ｃｏｍ)
 17
 18    protected void Page_Load(object sender, EventArgs e)
 19    ...{
 20        //从cookie中获取身份验证票信息
 21        string cookieName = FormsAuthentication.FormsCookieName;
 22        HttpCookie authCookie = Context.Request.Cookies[cookieName];
 23
 24
 25        if (authCookie != null)
 26        ...{
 27            div2.Visible = true;
 28            //解密
 29            FormsAuthenticationTicket authTicket = FormsAuthentication.Decrypt(authCookie.Value);
 30            Link.Text = authTicket.Name.ToString();
 31            LinkRole.Text = authTicket.UserData.ToString();
 32
 33        }
 34        else
 35        ...{ div2.Visible = false; }
 36
 37        ImageButton1.Attributes.Add("onclick","getResult();return false;");
 38    }
 39
 40
 41    protected void Linkout_Click(object sender, EventArgs e)
 42    ...{
 43        System.Web.Security.FormsAuthentication.SignOut();
 44
 45        string url = "List.aspx?category=" + Request.QueryString["category"];
 46        Context.Response.Redirect(url);
 47    }
 48    protected void login_Click(object sender, ImageClickEventArgs e)
 49    ...{
 50        if (txtid.Text != "" && txtpwd.Text != "")
 51        ...{
 52            string UserName = txtid.Text.Trim();
 53            string UserPwd = txtpwd.Text.Trim();
 54
 55            DataVisit mydv = new DataVisit();//创建访问层的类
 56            if (mydv.Confirm(UserName, UserPwd))//验证用户是否合法
 57            ...{
 58                string UserRoles = mydv.GetRoles(UserName);//获取用户角色的字符串
 59                //建立身份验证票据对象
 60                FormsAuthenticationTicket Ticket = new FormsAuthenticationTicket(1, UserName, DateTime.Now, DateTime.Now.AddHours(1), false, UserRoles, "/");
 61                //加密序列化验证票为字符串
 62                string HashTicket = FormsAuthentication.Encrypt(Ticket);
 63                //创建cookie
 64                HttpCookie UserCookie = new HttpCookie(FormsAuthentication.FormsCookieName, HashTicket);
 65                //输出cookie
 66                Context.Response.Cookies.Add(UserCookie);
 67                // div2.Visible = true;
 68                string url = "List.aspx?category=" + Request.QueryString["category"];
 69                Context.Response.Redirect(url);
 70
 71
 72
 73
 74            }
 75            else
 76            ...{
 77                txtid.Text = "不正确！用户名或密码";
 78
 79            }
 80
 81        }
 82    }
 83    protected void register_Click(object sender, ImageClickEventArgs e)
 84    ...{
 85        Response.Redirect("Register.aspx");
 86    }
 87    protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)
 88    ...{
 89
 90
 91        if (e.Item.ItemType == ListItemType.Footer)
 92        ...{
 93            ImageButton linkpre = (ImageButton)e.Item.FindControl("linkpre");
 94            ImageButton linknext = (ImageButton)e.Item.FindControl("linknext");
 95            DropDownList ddl = (DropDownList)e.Item.FindControl("DropDownList1");
 96            Label all = (Label)e.Item.FindControl("all");
 97            Label now = (Label)e.Item.FindControl("now");
 98            linknext.Enabled = false;
 99            linkpre.Enabled = false;
100
101            int newpageIndex;
102            if (!Page.IsPostBack)
103            ...{
104                newpageIndex = 0;//第一次加载时为第一页
105
106            }
107            else
108            ...{
109                if (result == null)//如果回调参数为空
110                    Session["page"] = 0;//session保存当前页面号
111                else
112                ...{　　//由于回调结果在绑定事件之前　所以设置回调后的页面　保存在session中
113                    string[] parts = result.Split('|');
114                    string n = parts[1];
115                    Session["page"] = n;
116                }
117                newpageIndex = Convert.ToInt32(Session["page"]); // 取出当前页面
118            }
119
120            if (newpageIndex > 0)
121            ...{
122                linkpre.Enabled = true;
123                //设置回调事件
124                linkpre.Attributes.Add("onclick", "setpageto(" + (newpageIndex - 1).ToString() + ");return false;");
125            }
126            if (newpageIndex < pds().PageCount - 1)
127            ...{
128
129                linknext.Enabled = true;
130                //设置回调事件
131                linknext.Attributes.Add("onclick", "setpageto(" + (newpageIndex + 1).ToString() + "); return  false;");
132            }
133
134
135
136            for (int i = 1; i <= pds().PageCount; i++)
137            ...{
138                ListItem item = new ListItem();
139                item.Value = i.ToString();
140                ddl.Items.Add(item);
141            }
142            ddl.Text = (newpageIndex + 1).ToString();
143            ddl.Attributes.Add("onchange", "setpageto1(this); return  false;");
144
145            now.Text = pds(newpageIndex + 1).CurrentPageIndex.ToString();
146            all.Text = pds().PageCount.ToString();
147
148
149
150
151
152        }
153
154
155    }
156
157
158
159    //返回一个可分页的数据源
160    public PagedDataSource pds()
161    ...{
162        PagedDataSource pds = new PagedDataSource();
163
164        DataVisit mydv = new DataVisit();
165
166
167        DataTable mydt = mydv.seachFilm(TextBox1.Text,TextBox2.Text,TextBox3.Text,TextBox4.Text);
168
169        pds.DataSource = mydt.DefaultView;
170        pds.AllowPaging = true;
171        int size = 9;
172        pds.PageSize = size;
173        pds.CurrentPageIndex = pds.CurrentPageIndex;
174        return pds;
175    }
176    //根据一个传来的整数作为当前页码并返回分页后的数据员
177    public PagedDataSource pds(int n)
178    ...{
179        PagedDataSource pds = new PagedDataSource();
180
181        DataVisit mydv = new DataVisit();
182
183
184        DataTable mydt = mydv.seachFilm(TextBox1.Text, TextBox2.Text, TextBox3.Text, TextBox4.Text);
185
186        pds.DataSource = mydt.DefaultView;
187        pds.AllowPaging = true;
188        int size = 9;
189        pds.PageSize = size;
190        pds.CurrentPageIndex = n;
191        return pds;
192    }
193
194    //绑定DataList
195    public void bind(int n)
196    ...{
197        DataList1.DataSource = pds(n);
198        DataList1.DataBind();
199
200    }
201
202
203
204
205
206    //回调方法
207    public string result;
208    public string GetCallbackResult()
209    ...{
210        string[] parts = result.Split('|');
211        //搜索名为MethodName的方法
212        MethodInfo method = this.GetType().GetMethod(parts[0]);
213
214        //定义一个object数组用来保存参数
215        object[] args = new object[parts.Length - 1];
216        Array.Copy(parts, 1, args, 0,args.Length);
217
218        return (string)method.Invoke(this, args);
219
220
221    }
222    public void RaiseCallbackEvent(string eventArgument)
223    ...{
224        result = eventArgument;
225    }
226    public string pageChange(string newIndex)
227    ...{
228
229        int n = Convert.ToInt32(newIndex);
230        bind(n);
231        return getRenderCode();
232    }
233
234    public string getRenderCode()
235    ...{
236        StringWriter write1 = new StringWriter(CultureInfo.InvariantCulture);
237        HtmlTextWriter write2 = new HtmlTextWriter(write1);
238
239        DataList1.RenderControl(write2);
240        write2.Flush();
241        write2.Close();
242
243        return write1.ToString();
244
245    }
246    //查询回调方法
247    public string filmResult(string index,string txt1,string txt2,string txt3,string txt4)
248    ...{
249        int n = Convert.ToInt32(index);
250        TextBox1.Text = txt1.Trim();
251        TextBox2.Text = txt2.Trim();
252        TextBox3.Text = txt3.Trim();
253        TextBox4.Text = txt4.Trim();
254        if (TextBox1.Text == "")
255            TextBox1.Text = "null";
256        if (TextBox2.Text == "")
257            TextBox2.Text = "null";
258        if (TextBox3.Text == "")
259            TextBox3.Text = "null";
260        if (TextBox4.Text == "")
261            TextBox4.Text = "null";
262        bind(0);
263        return getRenderCode();
264    }
265}