查询数据表以获取计数 [英] Query datatable to get the count

问题描述

我想知道数据表中特定字符串的数量

I want to know the count of specific strings present in the datatable

var Contact = (from DataRow dr in dtRec.Rows
                                         where dr["Recommendations"] == strContactVibration
                                         select dr).ToList();

但是在我做错的时候我算得数为0？

but i am getting count as 0 where i am doing wrong?

推荐答案

使用Tostring，它应该像

Use Tostring ,it should work like

var Contact = (from DataRow dr in table.Rows
                       where dr[Recommendations].ToString() == "m"
                       select dr).ToList();

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