http://blog.9cbs.net/loveCherry/archive/2005/04/10/342078.aspx to make a little modification of the last time, add a relatively beautiful progress to the screen above, the following is the end The icon for the post-picture is here: the last front desk is modified as follows: <% @ page language = "c #" codebehind = "Webform54.aspx.cs" autoeventwireup = "false" inherits = "9cbs.webform54"%>%>%>%>
Webform54 </ title> <meta content = "Microsoft Visual Studio .NET 7.1" Name = " GENERATOR "> <meta content =" C # "name =" CODE_LANGUAGE "> <meta content =" JavaScript "name =" vs_defaultClientScript "> <meta content =" http://schemas.microsoft.com/intellisense/ie5 "name = "vs_targetschema"> <style type = "text / css"> .font {font-weight: Normal; font-size: 9pt; color: # 000000; font-family: "Song", Sans-Serif; Background-Color: # f0f0f0; Text-Decoration: none} </ style> </ head> <body> <form id = "form1" method = "post" runat = "server"> <div id = "div_load" runat = "server" > <Table width = "320" Height = "72" border = "1" bordercolor = "# cccccc" cellpadding = "5" cellspacing = "1" class = "font" style = "filt ER: Alpha (Opacity = 80); Width: 320px; Height: 72px "> <Tr> <TD> <P> <img alt =" Please wait "SRC =" clocks.gif "align =" left "> <br > <Asp: label id = "lab_state" runat = "server"></p>
<p></ asp: label> </ p> </ td> </ tr> </ table> <br> </ div> <asp: button id = "btn_startwork" runat = "server" text = "running a long time mission "> </ asp: Button> <BR> <BR> <asp: Label id =" lab_jg "runat =" server "> </ asp: Label> </ form> </ body> </ HTML> background modified as follows: using System; using System.Collections; using System.ComponentModel; using System.Data; using System.Data.SqlClient; using System.Drawing; using System.Web; using System.Web.SessionState; using System.Web. Ui; use system.web.ui.webcontrols; using system.web.ui.htmlcontrols;</p>
<p>Namespace 9cbs {/// <summary> /// WebFORM54 summary description. /// </ summary> public class WebForm54: System.Web.UI.Page {protected System.Web.UI.HtmlControls.HtmlGenericControl div_load; protected System.Web.UI.WebControls.Button btn_startwork; protected System.Web.UI. WebControls.Label lab_state; protected system.web.ui.webcontrols.labl lab_jg; protected workw;</p>
<p>Private void Page_load (Object sender, system.eventargs e) {// Place user code here to initialize page IF (session ["Work" == null) {w = new work (); session ["Work"] = W;} else {w = (work) session ["Work"];} switch (w.state) {case 0: {this.div_load.visible = false; break;} case 1: {this.Lab_State.Text = "" ((TimeSpan)). Totalseconds.toString ("0.00") "seconds, complete percentage:" w.Percent "%"; this.btn_startwork.enable = false; page.registerStartupScript ("," <script> window.settimeout ('location.href = location.href', 1000); </ script>); this.Lab_jg.text = ""; Case 2: {this.Lab_jg.text = "The task ends, and successfully executes all operations," W.FinishTime-W.StartTime). TotalseConds "Second"; this.btn_startwork.enabled = true "This.div_load.visible = false; break;} case 3: {this.Lab_jg.text =" The task ends, " (w.errorTime-w.starttime)). Totalseconds " Error leads to mission failure '"; this.btn_startwork.enabled = true; this.div_load.visible = false; Break;}} #Region Web Form Designer Generated Code Override Protected Void OnInit (Eventargs E) {// // Codegen: This call is necessary for the ASP.NET Web Form Designer. // InitializeComponent (); base.onit (e);} /// <summary> /// Designer Supports the required method - Do not use the code editor to modify the // / this method. /// </ summary> private void InitializeComponent () {this.btn_startwork.Click = new System.EventHandler (this.btn_startwork_Click); this.Load = new System.EventHandler (this.Page_Load);</p>
<p>} #Endregion</p>
<p>private void btn_startwork_Click (object sender, System.EventArgs e) {if (w.State = 1!) {this.btn_startwork.Enabled = false; this.div_load.Visible = true; w.runwork (); Page.RegisterStartupScript ( " "," <script> location.href = location.href; </ script> ");}}}</p>
<p>Public class work {public int state = 0; // 0- No start, 1- is running, 2- successful end, 3- Failure end public int init percent = 0; // Complete percentage PUBLIC dateTime StartTime; Public DateTime FinishTime; DateTime ErrorTime;</p>
<p>public void runwork () {lock (this) {if (State = 1!) {State = 1; StartTime = DateTime.Now; System.Threading.Thread thread = new System.Threading.Thread (new System.Threading.ThreadStart ( DOWORK); thread.start ();}}}</p>
<p>private void dowork () {try {SqlConnection conn = new SqlConnection (System.Configuration.ConfigurationSettings.AppSettings [ "conn"]); SqlCommand cmd = new SqlCommand ( "Insert Into test (test) values ( 'test')", conn ); Conn.open (); for (int P = 0; P <100; P ) {for (int i = 0; i <10; i ) {cmd.executenonQuery ();} percent = p; // Is the percentage of definitions, how much time definition you estimate this operating fee} Conn.close (); // The above code performs a comparative time-consuming database operation State = 2;} catch {errortime = DateTime.now; percent = 0; State = 3;} finally {finishtime = datetime.now; percent = 0;}}}}</p></div><div class="text-center mt-3 text-grey">
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