如何修复 visual studio 报告中我的表达式除以零的错误？

Question

我在可视化中创建了报告 studio.The 问题是在总字段中除以零。我有一列的值为 00:03:15，另一列的值为 00:00:00 我想对这些列求和，并显示第一列和第二列的平均值。我在我的案例中使用了这个表达式（公式）：

=Format(
    TimeSerial(0,0, 
        Round(iif(sum(Fields!N_INBOUND.Value)=0,0,
        sum(Fields!T_INBOUND.Value/Fields!N_INBOUND.Value))

    +

    iif(sum(Fields!N_INBOUND.Value)=0,0,
    sum(Fields!T_HOLD.Value/Fields!N_INBOUND.Value)

    +iif(first(Fields!HANDLING_TIME_MEASURE_TYPE.Value)=2,
    sum(Fields!N_INBOUND.Value-Fields!N_TRANSFERS_TAKEN.Value),0))

    +iif(sum(Fields!N_INBOUND.Value)=0,0,
    sum(Fields!T_CONSULT.Value/Fields!N_INBOUND.Value)

    +iif(first(Fields!HANDLING_TIME_MEASURE_TYPE.Value)=2,
    sum(Fields!N_CONSULT.Value-Fields!N_TRANSFERS_TAKEN.Value),0)))/count(Fields!PRESENTATION_NAME.Value))
, "HH:mm:ss")

我用过这个 https://sqldusty.com/2011/08/01/ssrs-expression-iif-statement-divide-by-zero-error/ 看起来像：

=Format(
    TimeSerial(0,0, 
        Round(      
        iif(count(Fields!PRESENTATION_NAME.Value)=0,0,      
        (iif(sum(Fields!N_INBOUND.Value)=0,0,
        sum(Fields!T_INBOUND.Value/Fields!N_INBOUND.Value))

    +

    iif(sum(Fields!N_INBOUND.Value)=0,0,
    sum(Fields!T_HOLD.Value/Fields!N_INBOUND.Value)

    +iif(first(Fields!HANDLING_TIME_MEASURE_TYPE.Value)=2,
    sum(Fields!N_INBOUND.Value-Fields!N_TRANSFERS_TAKEN.Value),0))

    +iif(sum(Fields!N_INBOUND.Value)=0,0,
    sum(Fields!T_CONSULT.Value/Fields!N_INBOUND.Value)

    +iif(first(Fields!HANDLING_TIME_MEASURE_TYPE.Value)=2,
    sum(Fields!N_CONSULT.Value-Fields!N_TRANSFERS_TAKEN.Value),0)))/iif(count(Fields!PRESENTATION_NAME.Value)=0,1,count(Fields!PRESENTATION_NAME.Value)) ) ) )
, "HH:mm:ss")

但是向我展示了 ERROR.Anyone 谁知道如何解决这个问题？

Answer 1

你的数据是这样的，如果我错了请纠正我。在底部，我为两列都添加了总计。

注意：您必须注意列（T_INBOUND 和 N_INBOUND）return 值的类型。

现在为 T_INBOUND 和 N_INBOUND

创建总计

To add totals for a column group In the tablix data region row group area, right-click a cell in the column group area for which you want totals, then point to Add Total, and click Before or After.

A new column outside the current group is added to the data region, and then a default total is added for each numeric field in the column. Link: https://docs.microsoft.com/en-us/sql/reporting-services/report-design/add-a-total-to-a-group-or-tablix-data-region-report-builder-and-ssrs?view=sql-server-2017

有了总计后，您可以在总计旁边或总计下方创建一个单元格，然后添加如下表达式

    IIF(IsNothing(Fields!Total_N_BOUND.Value) OR Fields!Total_N_BOUND.Value=0,0,
Fields!Total_T_BOUND.Value/Fields!Total_N_BOUND.Value)

如何修复 visual studio 报告中我的表达式除以零的错误？

How to fix the error dividing by zero in my expression in visual studio reports?

reporting-services

report

visual-studio-2017-build-tools