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Posted 23 Feb 2014

To Generate XML File from Datatable using LINQ

, 23 Feb 2014 CPOL
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This tip shows how can we generate and save XML files


Using this simple code, you can generate XML files from database tables. XML files are very useful when it comes to transport data on the wire as they are platform independent. LINQ gives us a very simple way to generate XML files.  

Using the Code

I have shown the code to generate the XML file from a database table tbl_Employee. Let us have a look at the code briefly:

  1. XElement – This class loads and parses the XML.
  2. The string Employees” is the root of the XML.
  3. empList in dt.AsEnumerable dt is the datatable that has the employee details, we convert it to Enumerable and empList is used like an alias.
  4. Select query is pretty straight forward. “Employee” is the tag name of the individual elements. XAttribute indicates the attributes. Hence, here salary and designation are the attributes for Employee tag.
  5. EmployeeName and Designation are child elements for Employee element.
  6. To save this XML on the disk, remove .ToString() and append .Save(<your>)</your><your>. For example .Save(“D://LINQ”)
string s=  new XElement("Employees",
                 from empList in dt.AsEnumerable()
                 orderby empList.Field<decimal>("ESalary") descending
                 select new XElement("Employee",
                      new XAttribute("EmployeeId", empList.Field<Int32>("EID")),
                      new XAttribute("Salary", empList.Field<decimal>("ESalary")),
                      new XElement("EmployeeName", empList.Field<string>("EName")),
                      new XElement("Designation", empList.Field<string>("EDesignation"))

You can refer to the attached code. It is a simple Windows form that fetches data from SQL server DB and displays it in XML format in the textbox.


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


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Comments and Discussions

GeneralNice start Pin
Pranay Rana23-Feb-14 23:59
professionalPranay Rana23-Feb-14 23:59 
GeneralRe: Nice start Pin
puja1119124-Feb-14 0:09
memberpuja1119124-Feb-14 0:09 
GeneralRe: Nice start Pin
Pranay Rana24-Feb-14 0:13
professionalPranay Rana24-Feb-14 0:13 
GeneralRe: Nice start Pin
puja1119124-Feb-14 3:11
memberpuja1119124-Feb-14 3:11 

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