.NET进度条用例

default.aspx文件

<style type="text/css">

#filter{ display:none; position:absolute;bottom:0px;right:0px; left:0px; top:0px; z-index:1000;background: #000000;filter:Alpha(opacity=30);opacity:0.3}
 #promptbox{display:none; left:50%;top:50%;margin-left:-340px;margin-top:-150px; 680px; height:300px; z-index: 1001;
         position: absolute; text-align: center; background-color: White; border:solid 1px #000; padding:0 0 10px}
 .lefttit{ 60px; float:left}
 #divtotallen{ 500px; height:20px; border:solid 1px #cccccc; float:left}
 #divProgr{0px; height: 20px; background-color:Red; float:left}
 #spJd{ float:left; 60px}
 </style>

   <script type="text/javascript">

     function showFilter() {
         document.getElementById('filter').style.display = 'inline';
         document.getElementById('promptbox').style.display = 'inline';
    }
     function hidFilter() {
         document.getElementById('filter').style.display = 'none';
         document.getElementById('promptbox').style.display = 'none';
     }
 
    var Mouse_Obj = "none", _x, _y;
     document.onmousemove=function(e) {
     if (Mouse_Obj != "none") {
             e = e ? e : window.event;
             var obj = document.getElementById(Mouse_Obj);
             obj.style.left = _x + e.clientX + "px";
             obj.style.top = _y + e.clientY + "px";
             event.returnValue = false;
         }
     }
     document.onmouseup= function() {
         Mouse_Obj = "none";
     }
 
    function m(o, e) {
         e = e ? e : window.event;
         Mouse_Obj = o;
         var obj=document.getElementById(Mouse_Obj);
         _x = obj.offsetLeft + 340; //这里的190是下面(syn.css) margin-left:-190px 的偏移值
         _y = obj.offsetTop + 150; //这里的80是下面(syn.css) margin-top:-80px;  的偏移值
         _x += -e.clientX;
         _y += -e.clientY;
     }

     var strNewID = "";

     window.attachEvent("onload", function () {
         var obj = document.getElementById("<%=hidNewid.ClientID %>");
         if (typeof (obj) != "undefined") {
             strNewID = obj.value;
             if (strNewID != "") {
                 showFilter();
                 GetStatus();
             }
         }
     });

     function GetXmlHttpObject() {
         var xmlHttp = null;
         try {
             // Firefox, Opera 8.0+, Safari
             xmlHttp = new XMLHttpRequest();
         }
         catch (e) {
             // Internet Explorer
             try {
                 xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
             }
             catch (e) {
                 xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
             }
         }
         return xmlHttp;
     }

     function GetStatus() {

         var xmlHttp = GetXmlHttpObject();

         if (xmlHttp == null) {
             alert("您的浏览器不支持AJAX！");
             return;
         }

         var url = "SynProgress.aspx";
         url = url + "?id=" + strNewID;
         url = url + "&r=" + Math.random();
         xmlHttp.onreadystatechange = function () {
             if (xmlHttp.readyState == 4) {
                 try {
                     var res = xmlHttp.responseText;
                     if (res != "") {
                         var ss = res.split("|");
                         var f = parseFloat(ss[0]);
                         ControlLableLen(f);
                         SetMsgValue(ss[1]);
                         if (f < 1) {
                             setTimeout(GetStatus, 1000);
                         }
                         else {
                             alert("同步完成！");
                         }
                     }
                 }
                 catch (ex) {
                     SetMsgValue("发生意外错误:"+ ex.message);
                 }
             }
         };
         xmlHttp.open("GET", url, true);
         xmlHttp.send(null);
     }

     function ControlLableLen(f) {
         var obj = document.getElementById("divProgr");
         var obj2 = document.getElementById("spJd");
         var sLen = document.getElementById("divtotallen").clientWidth;
         var ttLen = parseInt(sLen);
         var jd = parseInt(ttLen * f);
         obj.style.width = jd + "px";
         obj2.innerHTML = parseInt(100 * f) + "%";
     }
     function SetMsgValue(msg) {
         if (msg != "")
             document.getElementById("txtMsg").value += msg;
     }

 </script>

<body>

<%--遮罩层开始--%>
<input runat="server" type="hidden" id="hidNewid" value="" />
     <div id="filter">
     </div>
     <div id="promptbox" >
         <div onmousedown="m('promptbox',event)"  style="height: 24px; margin-bottom:20px; background-color: Blue; ">
             <span onclick="hidFilter()" style="float: right; height: 24px; line-height:24px; background-color: Red;
                 font-size: 20px; font-weight: bolder; color: White; cursor:pointer;">×</span></div>
          <div style="display:inline-block">
              <span class="lefttit">当前进度：</span>
              <div id="divtotallen">
                  <div id="divProgr">
                  </div>
              </div>
              <span id="spJd"></span>
         </div>
         <div style="margin-top:20px"><textarea id="txtMsg" rows="14" cols="100"></textarea>  </div>
     </div>
<%--遮罩层结束--%>

<asp:Button ID="btnBulkSyn" runat="server" OnClick="btnSyn_Click" OnClientClick="return checkSelect()"
            Text="批量同步启动" />

<script>

        function checkSelect() {
            var ids = document.getElementsByName("ckbID");
            if (ids.length > 0) {
                for (var i = 0; i < ids.length; i++) {
                    if (ids[i].checked) return true;
                }
            }
            alert("请选择最少一本书籍！");
            return false;
        }

</script>

</body>

default.aspx.cs 文件

    protected void Page_Load(object sender, EventArgs e)
    {
        hidNewid.Value = "";
    }

    protected void btnSyn_Click(object sender, EventArgs e)
    {
            string newid = BulkAddProcess.AddNewProc(3);//分3步走
            BlukSyn bs = new BlukSyn(dtBluk, dtSourceSub, sbSqlRunBefore, sbSqlRunAfter, newid);
            Thread t = new Thread(new ThreadStart(bs.SynStart));
            t.Start();
            hidNewid.Value = newid;
    }

BlukSyn.cs 类文件

 public BlukSyn(DataTable drSourceMain, DataTable dtSourceSub, StringBuilder sbSqlRunBefore, StringBuilder sbSqlRunAfter,string proid)
 {
        this.dtSourceMain = drSourceMain;
        this.dtSourceSub = dtSourceSub;
        this.sbSqlRunBefore = sbSqlRunBefore;
        this.sbSqlRunAfter = sbSqlRunAfter;
        this.proid = proid;
 }

    public void SynStart()
    {
        BulkAddProcess.AddLog(proid,"数据处理开始...");

        BulkAddProcess.AddLog(proid,"1开始...");
        //......
        BulkAddProcess.UpdateProc(proid,1);
        BulkAddProcess.AddLog(proid,"1完成...");

        BulkAddProcess.AddLog(proid,"2开始...");
        //......
        BulkAddProcess.UpdateProc(proid,2);
        BulkAddProcess.AddLog(proid,"2完成...");

        BulkAddProcess.AddLog(proid,"3开始...");
        //......
        BulkAddProcess.UpdateProc(proid,1);
        BulkAddProcess.AddLog(proid,"3完成...");

        BulkAddProcess.AddLog(proid,"数据处理完毕！");
    }

SynProgress.aspx.cs 文件

    string id
    {
        get
        {
            return Sxmobi.Tools.GetRequestVal("id", "");
        }
    }
    protected void Page_Load(object sender, EventArgs e)
    {
        if(id!="")
        Response.Write(BulkAddProcess.ReadProgress(id));
        Response.End();
    }

BulkAddProcess.cs 类文件

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Collections;
using System.Text;

class HSAttr
{
    public float[] fs = new float[3];
    public StringBuilder sbMsg = new StringBuilder();
    public HSAttr()
    { }
}

public class BulkAddProcess
{
    public static Hashtable hsRroc;

    public static string AddNewProc(int iCounts)
    {
        Guid guid = Guid.NewGuid();
        if (hsRroc == null)
            hsRroc = new Hashtable();
        HSAttr hsa = new HSAttr();
        hsa.fs[0] = 0;
        hsa.fs[1] = 0;
        hsa.fs[2] = (float)iCounts;

        hsRroc.Add(guid.ToString(), hsa);

        return guid.ToString();
    }

    public static void UpdateProc(string newid)
    {
        HSAttr hsa = (HSAttr)hsRroc[newid];
        hsa.fs[1] = hsa.fs[1] + 1;
        hsa.fs[0] = hsa.fs[1] / hsa.fs[2];
        hsRroc[newid] = hsa;
    }

    public static void UpdateProc(string newid,int iprg)
    {
        HSAttr hsa = (HSAttr)hsRroc[newid];
        hsa.fs[1] = iprg;
        hsa.fs[0] = hsa.fs[1] / hsa.fs[2];
        hsRroc[newid] = hsa;
    }

    public static string ReadProgress(string newid)
    {
        string ret = "";
        float f = 1;
        try
        {
            if (hsRroc.Contains(newid))
            {
                HSAttr hsa = (HSAttr)hsRroc[newid];
                float[] fs = (float[])hsa.fs;
                f = fs[0];
                ret = f + "|" + ReadLogAndClear(newid);
                if ((int)fs[0] == 1) RemoveProc(newid);
            }
            else
            {
                ret = "1|";
            }
        }
        catch(Exception ex)
        {
            ret = "1|" + ex.Message;
            RemoveProc(newid);
        }
        return ret;
    }

    public static void AddLog(string newid,string msg)
    {
        HSAttr hsa = (HSAttr)hsRroc[newid];
        hsa.sbMsg.Append(msg + "\r\n");
        hsRroc[newid] = hsa;
    }

    public static string ReadLogAndClear(string newid)
    {
        HSAttr hsa = (HSAttr)hsRroc[newid];
        string msg = hsa.sbMsg.ToString();
        hsa.sbMsg = new StringBuilder();
        hsRroc[newid] = hsa;
        return msg;
    }

    public static void RemoveProc(string newid)
    {
        if (hsRroc == null) return;
        if (hsRroc.ContainsKey(newid))
            hsRroc.Remove(newid);
    }
}