Use the xsd.exe command to generate the corresponding XSD Schema File Based on the specified XML file

Open the vs command window,

Enter the command: XSD file. xml [/outputdir: Directory] [/parameters: file. xml]

Example:

Appendix 1: categories. xml

 <?  XML  Version  = " 1.0 " Encoding  = " UTF-8 " ?> <  Categories  >  < Category  > <  ID  > 2 </  ID  > <  Visible  > True </  Visible  > <  Title  > News Classification </  Title  > < Description  > </  Description  > <  Parentid  > </  Parentid  > </  Category  >  <  Category  > <  ID  > 0001 </  ID > <  Visible  > True </  Visible  > <  Title  > News Classification 1 </  Title  > <  Description  > Test 1 ~ </  Description  > < Parentid  > 2 </  Parentid  > </  Category  > <  Category  > <  ID  > 0002 </  ID  > <  Visible  > True </ Visible  > <  Title  > News classification II </  Title  > <  Description  > Test 2 ~ </  Description  > <  Parentid  > 2 </  Parentid > </  Category  > </  Categories  > 

 
Appendix 2: converted categories. XSD
 

 
Note: After conversion, the file content may be slightly modified. The type attribute of the element in the converted file is "XS: string" by default"
 

 
Here, change the type attribute of visible to"Xs: Boolean"
 

 <?  XML  Version  = " 1.0 " Encoding  = " UTF-8 " ?> <  Xs: Schema  ID  = " Categories " Xmlns  = "" Xmlns: XS  = " Http://www.w3.org/2001/XMLSchema " Xmlns: msdata  = "URN: Schemas-Microsoft-com: XML-msdata " > <  Xs: Element  Name  = " Categories " Msdata: isdataset  = " True " Msdata: locale  = " En-US " > <  Xs: complextype  > < Xs: Choice  Minoccurs  = " 0 " Maxoccurs  = " Unbounded " > <  Xs: Element  Name  = " Category " > <  Xs: complextype  > < Xs: Sequence  > <  Xs: Element  Name  = " ID " Type  = " Xs: String " Minoccurs  = " 0 " /> <  Xs: Element  Name  = "Visible " Type  = " Xs: Boolean " Minoccurs  = " 0 " />  <! --  Note:  -->  <  Xs: Element  Name  = " Title "Type  = " Xs: String " Minoccurs  = " 0 " /> <  Xs: Element  Name  = " Description " Type  = " Xs: String " Minoccurs  = "0 " /> <  Xs: Element  Name  = " Parentid " Type  = " Xs: String " Minoccurs  = " 0 " /> </  Xs: Sequence  > </ Xs: complextype  > </  Xs: Element  > </  Xs: Choice  > </  Xs: complextype  > </  Xs: Element  > </  Xs: Schema  > 

 

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Note: If the XML file is not automatically generated, you can also use "create XML schema file" to create a new XSD file, as shown below:

 <?  XML Version  = " 1.0 " Encoding  = " UTF-8 " ?> <  Xs: Schema  ID  = " XMLSCHEMA " 
    Targetnamespace =" Http://tempuri.org/XMLSchema.xsd"  <! -- This sentenceCodeNeed to be deleted. Otherwise, XML data cannot be read through dataset. Why? Remove to display --> 
         Elementformdefault  = " Qualified " Xmlns  = " Http://tempuri.org/XMLSchema.xsd " Xmlns: mstns  = "Http://tempuri.org/XMLSchema.xsd " Xmlns: XS  = " Http://www.w3.org/2001/XMLSchema " > </  Xs: Schema  >