ADO.Net-数据集关系 [英] ADO.Net - Dataset relations

问题描述

大家好，

我有一个查询.请帮帮我.

我有两个桌子-主人和一个孩子.这两个表在两侧的复合键上都与/foriegn键链接..

然后，如何建立数据集关系.请给示例2行代码.. plz.

问候，
KVS.

Hi All,

I have a query. Please help me.

I have two tables - Master and a child. These two tables are linked with / foriegn key on both sides composite keys..

Then, how to build Dataset relations. Please give a sample 2 lines code .. plz.

Regards,
KVS.

推荐答案

您尝试过什么吗?

提示:DataRelation构造函数接受DataColumn[]作为参数.

Have you tried anything?

Hint: DataRelation constructor accepts DataColumn[] as parameter.

此处:
ADO.NET中的数据关系 [父母/儿童DataRelation.基础知识. [

Here:
DataRelations in ADO.NET[^]
Parent/Child DataRelation. The Basics.[^]

如果要定义数据表之间的关系 ParentColumns [^ ]和 ChildColumns [构造器 [

If you want to define a relation between data tables DataRelation[^] is for that purpose. There''s a good sample in the doc.

If you use composite keys, just add all the columns in the ParentColumns[^] and ChildColumns[^]

This can also be done directly in the constructor[^]

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