读取xml模式 [英] reading an xml schema

问题描述

你好，
我已经在XML文件中放置了一个xml模式
它被放置为第一个Node的后代之一，此xml文件代表一个表

hello,
ive got an xml schema wich is placed inside of an xml file
it is placed as one of the descendants of the first Node , this xml file represnt a table

<newdataset>
   <xs:schema .....="" xmlns:xs="#unknown">
         .
          <xs:element name="Table">
          <xs:complextype>
              <xs:sequence>
                <xs:element name="OrderID" type="xs:int" minoccurs="0" />
                <xs:element name="ProductID" type="xs:int" minoccurs="0" />
                <xs:element name="UnitPrice" type="xs:decimal" minoccurs="0" />
                <xs:element name="Quantity" type="xs:short" minoccurs="0" />
                <xs:element name="Discount" type="xs:float" minoccurs="0" />
              </xs:sequence>
            </xs:complextype>
          </xs:element>
          .
          .
   </xs:schema>
   <record>
        // FIELD NODES
   </record>
   <record>
       // FIELD NODES
   </record>
   .
   .
       // MORE RECORDS 
<newdataset>
</newdataset></newdataset>

我需要检索字段的名称和类型才能创建表示记录的Entity，但是我无法使用内置的ADO.NET函数从此文件中创建数据集.
我可以使用xmlDocument并遍历该模式，直到找到具有name ="table"属性的节点.
我正在寻找一种简单的更好看的方法来完成上述操作.
Linq to xml可能是最合适的方法，但是
似乎有问题 Descendants("xs:element")带有:"更具体.
在此先感谢.

i need to retrive the the name and the type of the fields in order to create an Entity that would represent a record , i cannot use built in ADO.NET function to create a dataset from this file.
i could use xmlDocument and traverse threw the schema untill finding the node with the name="table" , attribute .
im looking for a simple better looking way to do the above .
Linq to xml would of been the most appropriate way but it seems to have a problem with
Descendants("xs:element") with the ":" to be more specific .
thanks in advance .

推荐答案

你好亲爱的
如果要从中加载架构的文件完全为true，则可以执行此操作以将架构从文件加载到DataSet:

Hello Dear
if file which you want load schema from it, is completely true , you can do this to load schema from a file to DataSet :

DataSet Dset = new DataSet();
Dset.ReadXml("FilePath");

或

or

DataSet Dset = new DataSet();
Dset.ReadXmlSchema("FilePath");

DataSet的ReadXml("FileName")方法从XML文件加载架构和数据
DataSet的ReadXmlSchema("FileName")方法仅从XML文件加载架构.

如果要将模式和数据写入XML文件，可以执行以下操作:

ReadXml("FileName") method of DataSet loads Schema and Data from XML file
ReadXmlSchema("FileName") method of DataSet loads just Schema from XML file

if you want to write schema and data to a XML file you can do these :

Dset.WriteXml("FilePath");
Dset.WriteXmlSchema("FilePath");

这篇关于读取xml模式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IT屋！