对多个任务使用Task.WhenAll时,在foo.Start()上获取错误 [英] Getting error on foo.Start() when using Task.WhenAll for multiple tasks
本文介绍了对多个任务使用Task.WhenAll时,在foo.Start()上获取错误的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我收到此错误在约定样式的任务上可能无法调用开始".所以我注释掉了 .Start()
.我再试一次收到此错误可能无法在已完成的任务上调用启动".那么我应该怎么做才能使其正常工作?
I'm getting this error "Start may not be called on a promise-style task." so I commented out the .Start()
. I tried again & got this error "Start may not be called on a task that has completed." So what am I suppose to do to make this work properly?
var dashboardDailyAgeAnalysis = DailyAgeAnalysesTotalRowsCountAsync(v.BookItOutAccountId, v.ClientMgntAccountNumber, yesterdayDate);
var dashboardDailyBalance = DailyBalanceTotalRowsCountAsync(v.BookItOutAccountId, v.ClientMgntAccountNumber, yesterdayDate);
var dashboardDailyInventory = DailyInventoryTotalRowsCountAsync(v.BookItOutAccountId, v.ClientMgntAccountNumber, yesterdayDate);
// dashboardDailyAgeAnalysis.Start();
// dashboardDailyBalance.Start();
// dashboardDailyInventory.Start();
await Task.WhenAll(
dashboardDailyAgeAnalysis, dashboardDailyBalance, dashboardDailyInventory
);
// Do something with these results.
var result1 = dashboardDailyAgeAnalysis.Result;
var result2 = dashboardDailyBalance.Result;
var result3 = dashboardDailyInventory.Result;
推荐答案
await Task.WhenAll(
dashboardDailyAgeAnalysis, dashboardDailyBalance, dashboardDailyInventory
);
// Do something with these results.
var result1 = await dashboardDailyAgeAnalysis;
var result2 = await dashboardDailyBalance;
var result3 = await dashboardDailyInventory;
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