我有一个漫长的过程可能需要1个小时.
这个过程包括从年到年的许多步骤.我的主要问题是：
如何在进程期间向终端用户提供一个信息丰富的实时进度,而不仅仅是虚拟加载栏.
int index = Convert.ToInt32(e.CommandArgument);
bool done = false;
int res = -1;
int fromVal = int.Parse(gv_balance.Rows[index].Cells[0].Text);
int toVal = int.Parse(gv_balance.Rows[index].Cells[1].Text);
int finMonth = 1;
int finYear = 0;
int EndServ = 0;
int calcYear = int.Parse(gv_balance.Rows[index].Cells[2].Text);
int total;
total = ((toVal - fromVal) + 1);
string msg = string.Empty;
int confirm = Balance.GetConfirmState(calcYear);
if (confirm == 0)
{
RadProgressContext progress = RadProgressContext.Current;
progress.Speed = "N/A";
finYear = fromVal;
for (int i = fromVal; i <= toVal; i++)
{
decimal ratio;
//Load New Employees
if (toVal - fromVal > 0)
{
ratio = ((decimal)toVal - i) / (toVal - fromVal) * 100;
}
else
{
ratio = ((decimal)toVal - i) / 1 * 100;
}
progress.PrimaryTotal = total;
progress.PrimaryValue = total;
progress.PrimaryPercent = 100;
progress.SecondaryTotal = 100; // total;
progress.SecondaryValue = ratio;//i ;
progress.SecondaryPercent = ratio; //i;
progress.CurrentOperationText = "Step " + i.ToString();
if (!Response.IsClientConnected)
{
//Cancel button was clicked or the browser was closed,so stop processing
break;
}
progress.TimeEstimated = (toVal - i) * 100;
//Stall the current thread for 0.1 seconds
System.Threading.Thread.Sleep(100);
EndServ = i + 1;
if (i == fromVal)
{
//--->STEP1
//Load intial data
int intial = Balance.PrepareIntialData(calcYear);
//--->STEP2
res = Balance.CalcEndServed(calcYear,EndServ - 1,6,30);
}
//--->STEP3
int newEmps = Balance.PrepareNewEmployees(calcYear,i);
for (int j = 0; j < 2; j++)
{
if (j == 0)
{
finMonth = 7;
finYear = i;
}
else
{
finMonth = 1;
finYear = i + 1;
}
//--->STEP4
int promotion1 = Balance.PreparePromotionFirst(finYear,finMonth,calcYear);
//--->STEP5
int promotion2 = Balance.PreparePromotionSecond(finYear,calcYear);
//--->STEP6
int appointment1 = Balance.PrepareAppointmentFirst(finYear,calcYear);
//--->STEP7
int appointment2 = Balance.PrepareAppointmentSecond(finYear,calcYear);
//--->STEP8
int bonus = Balance.PrepareBonus(finMonth,finYear,calcYear);
//--->STEP9
int salary = Balance.PrepareSalary(finYear,calcYear);
(((CheckBox)gv_balance.Rows[index].Cells[3].FindControl("chk_redirect")).Checked == true)
{
//--->STEP9
int acco = Balance.PrepareFinanceAccount(finYear,calcYear);
}
}
//--->STEP10
res = Balance.CalcEndServed(calcYear,EndServ,30);
Balance.CalcStudy(calcYear);
UpdateProgressContext();
if (res < 0)
{
success_lb.Visible = false;
error_lb.Visible = true;
error_lb.Text = "ERROR";
}
else
{
done = true;
success_lb.Visible = true;
error_lb.Visible = false;
success_lb.Text = "Success";
}
}
}
我想显示当前步骤,例如：
(促销1)in —> 1-2018以及估计时间之外的整个过程的百分比.
解决方法
要使用signalR来报告一个很长的任务的进度,你可以这样做(这只是一个例子来说明它是如何工作的)：
服务器部分
我们首先映射SignalR.
public class Startup
{
public void Configuration(IAppBuilder app)
{
// Any connection or hub wire up and configuration should go here
app.MapSignalR();
}
}
我们创建一个Hub类(不要忘了安装signalr包)：
(如果要向所有连接的用户或特定的用户组报告进度,请查看：http://www.asp.net/signalr/overview/guide-to-the-api/working-with-groups)
public class MyHub : Hub
{
public void Start(string arg)
{
Task.Run(() =>
{
AVeryLongTask();
});
}
//simulate a long task
void AVeryLongTask()
{
for (int i = 0; i < 10000; i++)
{
Thread.Sleep(100);
Clients.Caller.ReportProgress("AVeryLongTask",i * 100 / 10000);
}
}
}
客户部分
在html中,您必须添加以下引用：
<!--Script references. --> <!--Reference the jQuery library. --> <script src="Scripts/jquery-1.6.4.min.js"></script> <!--Reference the SignalR library. --> <script src="/Scripts/jquery.signalR-2.0.0.js"></script> <!--Reference the autogenerated SignalR hub script. --> <script src="/signalr/hubs"></script>
现在的Js部分是从中心获得进步：
$(function() {
// Declare a proxy to reference the hub.
var hub = $.connection.myHub;
// Create a function that the hub can call to report progress.
hub.client.reportProgress = function(functionName,progress) {
$('#progression').append('<li><strong>' + progress + '</strong>: ' + functionName + '</li>');
};
// Start the connection.
$.connection.hub.start().done(function() {
$('#startlongprocess').click(function() {
//start the long process
hub.server.start("arg");
alert("started");
});
});
});
用于进度和开始按钮的html容器：
<div class="container"> <input type="button" id="startlongprocess" value="Send" /> <ul id="progression"></ul> </div>
如果您需要更多的解释,请不要犹豫.
(我的例子是基于这个来自signalr团队的http://www.asp.net/signalr/overview/getting-started/tutorial-getting-started-with-signalr)
