在Crystal Reports中显示树状行视图 [英] Displaying a Tree like view of rows in crystal reports

问题描述

嗨哥们
有一个名为产品"的数据库表，其中存储了产品规格和属性.每个产品都有0,1或多个子产品.如果没有子产品，则该产品为子产品，应在树状的Crystal报表中显示在父行的底部(通过树状报表，我指的是一些子产品的缩进).如果您询问如何区分子产品和父产品，我将通过一个名为id_index_product的特殊列来回答，该列针对每个产品均显示其父产品(父ID)，并且该列是否为Null，即父产品的父产品必须显示在报告的顶部.
我的想法是这样的:

Hi buddies
there is a Database table Named "Product" which stores Product Specifications and attributes. each Product has 0,1 or many child product . if it has no child product, the product is child product and should be displayed at the bottom of the parent row in a tree-like Crystal report ( by tree-like report I mean, some indentations for child products). if you ask how child and parent products are distinguished, I would answer, by a special column named id_index_product which for every product shows its parent ( parent id) and if the column would be Null, that is the Parent of parents Product which has to be shown at the top of the report.
What I have in mind is something like this :

Product1        (Parent of parents)
  Product2 (child of P1)
  Product3
    Product4  (child of P3)
  Product5
    Product6
      Product7
Product8        (Parent of parents)
 Product9
 Product10

我曾经使用过分组和分层分组，但是我认为我使用它们的方式不正确.所以没有成功.

我想知道您是否指导我如何完成它.
我使用VS 2008(C#)-和Crystal Reports Basic for VS 2008

I''ve used grouping and Hierarchical grouping but I think I used them incorrectly. so no success is achieved.

I wonder if you guide me how to get it done.
I use VS 2008 (C#)- and Crystal Reports Basic for VS 2008

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子报表

C#Crystal Reports-子报告 [ C#Crystal Reports-按需子报表 [ ^ ]

Subreports

C# Crystal Reports - sub reports[^]
C# Crystal Reports - on demand sub reports[^]

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