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      用戶控件開發(fā):

       昵稱10504424 2014-02-24

       

       

      弦斷有誰(shuí)聽
       

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      用戶控件開發(fā):

       

       

       
      功能:
       
      1、判斷用戶是否自動(dòng)登錄
       


      有了html5,就可以在很多地方用localStorage取代cookies,sessionStorage取代Session
       
      2、實(shí)現(xiàn)視頻搜索
       
      首先為TextBox控件擴(kuò)展一個(gè)AutoCompleteExtender控件,實(shí)現(xiàn)輸入字符,自動(dòng)顯示相關(guān)視頻。
       
      讀者需要了解AutoCompleteExtender控件的使用方法;此實(shí)例后臺(tái)WebService方法如下
       


      數(shù)據(jù)庫(kù)表中有videoTitle字段,通過(guò)調(diào)用存儲(chǔ)過(guò)程selectVideoTitle
       
      create proc [dbo].[selectVideoTitle]
      @videoTitle nvarchar(20)
      as
      select * from T_videoInfo where videoTitle like '%'+@videoTitle+'%' and aduiting=0 order by clickCount desc
       
      獲得視頻名稱列表,然后傳給strArray;
       
      為TextBox控件添加blur事件,發(fā)生此事件時(shí),會(huì)把TextBox控件的值傳給selectVideoInfo.ashx文件,此文件負(fù)責(zé)返回視頻Id,通過(guò)參數(shù)Id傳給videoShow.asox;然后跳轉(zhuǎn)到視頻列表展示頁(yè)面videoShow.aspx
       


      selectVideoInfo如下:
       


      也是通過(guò)調(diào)研存儲(chǔ)過(guò)程。SqlHelp等一些公共方法在代碼中
       
      3.登錄,注冊(cè)上傳視頻頁(yè)面的打開
       


      當(dāng)希望鏈接被蜘蛛爬到,又不希望通過(guò)鏈接形式打開;可以使用return false語(yǔ)句
       
      下面javaScript用來(lái)打開注冊(cè)頁(yè)面:
       


      大家可以去查一下window.showModalDialog()和window.open()的區(qū)別等。
       
      代碼
       


      using System;
      using System.Collections.Generic;
      using System.Linq;
      using System.Text;
      using System.Configuration;
      using System.Data;
      using System.Data.SqlClient;
      using System.IO;
      using System.Diagnostics;


      namespace 在線視頻.CommonClass
      {
          public class SqlHelp
          {
              static string connstr = ConfigurationManager.ConnectionStrings["conVedioStr"].ConnectionString;
              public static DataTable ExecuteDataTable(string str, params SqlParameter[] parameters)
              {
                  using (SqlConnection conn = new SqlConnection(connstr))
                  {
                      using (SqlCommand com = conn.CreateCommand())
                      {
                          com.CommandText = str;
                          com.Parameters.AddRange(parameters);
                          SqlDataAdapter adapter = new SqlDataAdapter(com);
                          DataTable table = new DataTable();
                          adapter.Fill(table);
                          return table;
                      }
                  }
              }
              public static DataTable ExecuteDataTablePro(string procName, params SqlParameter[] parameters)
              {
                  using (SqlConnection conn = new SqlConnection(connstr))
                  {
                      using (SqlCommand com = conn.CreateCommand())
                      {
                          com.CommandType = CommandType.StoredProcedure;
                          com.CommandText = procName;
                          com.Parameters.AddRange(parameters);
                          SqlDataAdapter adapter = new SqlDataAdapter(com);
                          DataTable table = new DataTable();
                          adapter.Fill(table);
                          return table;
                      }
                  }
              }
              public static int  ExecuteNonQuery(string str, params SqlParameter[] parameters)
              {
                  using (SqlConnection conn = new SqlConnection(connstr))
                  {
                      conn.Open();
                      using (SqlCommand com = conn.CreateCommand())
                      {
                          com.CommandText = str;
                          com.Parameters.AddRange(parameters);
                         return com.ExecuteNonQuery();
                      }
                  }

              }
              public static int ExecuteNonQueryPro(string procName, params SqlParameter[] parameters)
              {
                  using (SqlConnection con = new SqlConnection(connstr))
                  {
                      con.Open();
                      using(SqlCommand com=con.CreateCommand())
                      {
                          com.CommandType = CommandType.StoredProcedure;
                          com.CommandText = procName;
                          com.Parameters.AddRange(parameters);
                          return com.ExecuteNonQuery();
                      }
                  }
              }
              public static object ExecuteScalar(string str, params SqlParameter[] parameters)
              {
                  using (SqlConnection conn = new SqlConnection(connstr))
                  {
                      conn.Open();
                      using (SqlCommand com = conn.CreateCommand())
                      {
                          com.CommandText = str;
                          com.Parameters.AddRange(parameters);
                          return com.ExecuteScalar();
                      }

                  }

              }
              public static object ExecuteScalarPro(string procName, params SqlParameter[] parameters)
              {
                  using (SqlConnection conn = new SqlConnection(connstr))
                  {
                      conn.Open();
                      using (SqlCommand com = conn.CreateCommand())
                      {
                          com.CommandType = CommandType.StoredProcedure;
                          com.CommandText = procName;
                          com.Parameters.AddRange(parameters);
                          return com.ExecuteScalar();
                      }

                  }

              }
              public static SqlDataReader ExecuteReader(string str, params SqlParameter[] parameters)
              {
                  using (SqlConnection conn = new SqlConnection(connstr))
                  {
                      conn.Open();
                      using (SqlCommand com = conn.CreateCommand())
                      {
                          com.CommandText = str;
                          com.Connection = conn;
                          com.Parameters.AddRange(parameters);
                          SqlDataReader reader = com.ExecuteReader();
                          return reader;
                      }
                     
                  }

              }
              public static object FromDbValue(object value)
              {
                  if (value == DBNull.Value)
                  {
                      return null;
                  }
                  else
                  {
                      return value;
                  }
              }
              public static object ToDbValue(object value)
              {
                  if (value == null)
                  {
                      return DBNull.Value;
                  }
                  else
                  {
                      return value;
                  }
              }
              public static string AlertMsg(string msg)
              {
                  string str = "<script type=\"text/javascript\" >alert('" + msg + "');</script>";
                  return str;
              }
              public static  string getUniqueName(string tempPath)//tempPath上傳路徑
              {
                  string strPre = tempPath.Substring(0, tempPath.LastIndexOf("."));

                  string strLast = tempPath.Substring(tempPath.LastIndexOf(".") + 1);
                  int i = 0;
                  while (File.Exists(tempPath))
                  {
                      tempPath = strPre + "(" + i.ToString() + ")." + strLast;
                      i++;
                  }
                  return tempPath;//返回唯一路徑

              }
              public static void catchImg(string videoFileName, string imgSavePath)//截取圖片
              {
                  string fmpeg = @"F:\html\在線視頻\在線視頻\CommonFiles\ffmpeg.exe";
                  string savePath = imgSavePath;
                  string imgSize = ConfigurationManager.AppSettings["sizeofImg"];
                  Process pass = new Process();
                  pass.StartInfo.FileName = fmpeg;
                  pass.StartInfo.Arguments = "  -i  " + videoFileName + "  -y  -f  image2   -ss 2 -vframes 1 -s " + imgSize + " " + savePath;
                  pass.Start();
              }

          }
      }


       前臺(tái)代碼:
       

       

       

       


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      <%@ Control Language="C#" AutoEventWireup="true" CodeBehind="Header.ascx.cs" Inherits="在線視頻.Header" %>

      <%@ Register assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagprefix="asp" %>

      <link href="CSS/Header.css" rel="stylesheet" />

      <script src="JS/jquery-1.7.1.js"></script>

          <script type="text/javascript">

              function showDialog(url,width,height) {

                  var opensettings = "toolbar=no,menubar=no,status=no,scrollbars=no,location=no,resizable=no,center=yes";

                  //var modalsettings = "center=yes;";

                  var left, top;

                  left = (screen.width - width) / 2;

                  top = (screen.height - height) / 2;

                  // opensettings = opensettings + ",left=" + left + ",top=" + top+",screenx="+left+",screeny="+top;

                 var modalsettings = opensettings + ",dialogLeft=" + left + ",dialogTop=" + top;

                  var d = new Object("dd");

                  // window.open(url,tarert,opensettings);

                  window.showModalDialog(url, d, modalsettings);

              }

              window.onload = function () {

                  if (localStorage.userName != null && localStorage.userName != "")

                  {

                      document.getElementById("notLogin").style.display ="none";

                      document.getElementById("spUerName").innerHTML = localStorage.userName;

                  }

              }

              $(function () {

                  $("#Header_txtSearch").blur(function () {

                      $.get("Ajax/selectVideoInfo.ashx", { "videoTitle": $("#Header_txtSearch").val() }, function (data, status) {

                          if (status == 'success') {

                              window.location.href = "videoShow.aspx?Id=" + data;

                          }

                          else {

                              alert("視頻獲取失敗");

                          }

                      });

                  });

                  $("#spUerName").mouseover(function () {

       

                  });

         });

          </script>

      <div class="divHead">

              <div class="divHeader">     

                      <div class="divWeatherInfo" >

                          <span id="cityName">城市:</span> 

                          <span ><img id="weaPic" src="" alt="無(wú)法顯示天氣圖片" /></span>

                          <span id="temp">溫度:</span>

                          <span>| 空氣質(zhì)量:</span>

                          <span id="airQuality"></span>

                      </div>

                      <div class="divVideoSearch">

                          <asp:TextBox ID="txtSearch" runat="server" Height="29px" Width="200px" ></asp:TextBox>

                          <asp:AutoCompleteExtender ID="txtSearch_AutoCompleteExtender" runat="server" Enabled="True" ServicePath="~/WebService/videoSearch.asmx" TargetControlID="txtSearch" ServiceMethod="GetTextString" MinimumPrefixLength="1" >

                          </asp:AutoCompleteExtender>

                      <asp:Button ID="btnSearch" runat="server" Text="搜索" BackColor="#FFECDF" BorderStyle="None" BorderWidth="0px" Font-Bold="True" Font-Italic="False" Font-Size="Large" ForeColor="#FF6E0C" Height="34px" OnClick="btnSearch_Click"  Width="70px"/>            

                      </div>

                      <div class="divUserInfo">

                          <span id="notLogin">

                          <a href="UserLogin.html" onclick="showDialog('UserLogin.html','200','150');return false;">登錄</a>

                          <a href="UserRegister.aspx" target="_blank">注冊(cè)</a></span>

                          <span id="spUerName" ><button id="userCan">退出</button></span>

                          <a href="videoUpLoad.aspx">上傳</a>

                      </div>

              </div>

          </div>

       

       

       


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      posted @ 2014-02-15 10:21 弦斷有誰(shuí)聽 閱讀(118) 評(píng)論(0) 編輯 收藏
       

       

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