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      1. C# - 合并两个重复行的数据表

        时间:2023-08-28
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                • 本文介绍了C# - 合并两个重复行的数据表的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

                  问题描述

                  我可以找到很多关于合并两个 DataTables 和删除重复行的信息,但我需要相反的.

                  I can find lots of information about merging two DataTables and dropping duplicate rows, but I need the opposite.

                  我需要知道是否有人有一种简单的方法来合并两个 DataTable,其中合并的结果是一个 DataTable,其中只有两个表中都存在行.

                  I need to know if anyone has an easy way to merge two DataTables where the result of the merge is a DataTable with only rows that exist in both tables.

                  推荐答案

                  像这样:

                  var intersection = table1.AsEnumerable()
                                           .Intersect(table2.AsEnumerable(), DataRowComparer.Default);
                  

                  DataRowComparer 按列值比较行.

                  这篇关于C# - 合并两个重复行的数据表的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持html5模板网!

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