我认为字段ActualRunTime名称未定义。

尝试其中一个。

1.

I think the field "ActualRunTime" name is not defined.
Try one of this.
1.

string sqlreadRunTimeActual = "Select sum(ActualRunTime) ActualRunTime from MonthlyRunData " + "where Date = '16/11/2013'";

2. （getRunTimeActual [0]的ToString（））; 我不确定第一个字段索引是0还是1.我猜它是0。

2. (getRunTimeActual[0].ToString()); I am not sure if first field index is 0 or 1. I am guessing its 0.