Linq查詢與組通過檢索百分比

我必須計算group by子句中的百分比。更深入我需要計算Status ='False'的ControlForms的百分比。狀態位於表checkResult中。Linq查詢與組通過檢索百分比

var items = (from controlForm in dataContext.ControlForms 
      join controlFormStatus in dataContext.ControlFormStatus on controlForm.FK_ControlFormStatus equals controlFormStatus.Id 
      join docCheck in dataContext.DocumentChecks on controlForm.Id equals docCheck.FK_ControlForm 
      join checkResult in dataContext.CheckResults on docCheck.FK_CheckResult equals checkResult.Id 
      where controlForm.FK_ControlCycle.ToString().Equals(controlCycleId) & (
      controlFormStatus.Description.Equals(Constants.ControlFormStatusTestControlOwner) 
      | controlFormStatus.Description.Equals(Constants.ControlFormStatusApprovalProcessOwner)) 
      group controlForm by new { controlForm.Id, controlForm.FK_ControlCycle, controlForm.FK_SampleNode, controlForm.FK_Control, /*FUNCTION*/} into ctrlForm 
         select new ControlFormReportPartialResults(ctrlForm.Key.Id, ctrlForm.Key.FK_ControlCycle, ctrlForm.Key.FK_SampleNode, ctrlForm.Key.FK_Control, ValueFunction));

任何人都可以建議我什麼，我不得不但是istead/功能 /？或者如果有另一種方法來解決問題？任何幫助真的很受歡迎！

由於提前，達里奧扎內利

來源

2010-01-12 Dario Zanelli

替換「集」與包含要計算的百分比項目相應的變量：

collection.Select(item => item.Status == false).Count()/collection.Count() * 100

來源

2010-01-26 07:34:11 Iravanchi

Linq查詢與組通過檢索百分比

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