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我在层次中以分层方式构建。举个例子。

Category 7
    Objective 7.1  [GeneralExpectation='']
        A  [Expectation='']
        B  [Expectation='']
        C  [Expectation='']
    Objective 7.2  [GeneralExpectation='']
        A  [Expectation='']
        B  [Expectation='']
    Objective 7.3  [GeneralExpectation='']
        A  [Expectation='']
Category 8
    ...

我想将这些信息存储在 xml 文件中而不是数据库中会很方便。

<Levels>
  <Level Id=7>
    <Categories>
      <Category Id=1 Name="Numbers, Operations, and Quantitative Reasoning" Expectation="The student will demonstrate an understanding of numbers, operations, and quantitative reasoning.">
        <Objective Id="7.1" Name="Number, operation, and quantitative reasoning." GeneralExpectation="The student represents and uses numbers in a variety of equivalent forms. The student is expected to">
          <SubObjective Id="A" Expectation="compare and order integers and positive rational numbers; Supporting Standard" />
          <SubObjective Id="B" Expectation="convert between fractions, decimals, whole numbers, and percents mentally, on paper, [or with a calculator]; and Readiness Standard" />
        </Objective>
      </Category>
      <Category Id=2 Name="Patterns, Relationships, and Algebraic Reasoning" Expectation="The student will demonstrate an understanding of patterns, relationships, and algebraic reasoning.">
      </Category>
    </Categories>
  </Level>
</Levels>

我这样做是因为我需要TreeView在 WPF 的控件中访问这些信息。但同时，我的 SQL 数据库中有一个表，需要存储用户正在使用的 Level 目标： 7.1A, 7.1B, 7.1C, 7.2A.

这是一个好习惯吗？或者我没有保留这两个数据之间的关系。

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1 回答 1

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@DarfZon，我会将数据保留为一种格式（如果您的其他数据也是关系数据，我的建议是 SQL Server）。您可以使用 SQL Server 强大的 XML 语法和FOR XML子句以分层格式检索 SQL Server 中的关系数据。

于 2012-12-10T16:28:55.587 回答