我的表格载于<代码>数据查询/编码>。 我想得到一个具体一栏的计算和总合。 如何做到这一点?
This is the code for reach to the column, what after that?
数据库购买=我的DataSet.Tables[“all_saled”]。
我知道,我们有钱、有钱、有钱,......有饭吃,但我如何能够在C#中这样做?
我的表格载于<代码>数据查询/编码>。 我想得到一个具体一栏的计算和总合。 如何做到这一点?
This is the code for reach to the column, what after that?
数据库购买=我的DataSet.Tables[“all_saled”]。
我知道,我们有钱、有钱、有钱,......有饭吃,但我如何能够在C#中这样做?
您可使用LINQ数据表。
var sales = myDataSet.Tables["all_saled"].AsEnumerable();
var buy_total = sales.Sum(datarow => datarow.Field<int>("how_much_buy"));
P.S. 可能需要System.Data.DataSetExtensions 参考。
使用<代码>数据。 方法:
int total = (int)myDataSet.Tables["all_saled"].Compute("SUM(how_much_buy)", null);
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