How to read XML file data in ASP.NET web application

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Hello everyone,
here i want to read xml file data.Xml file is collection of users where each user has UserName and Modules rights.Here i want selected users modules list using that i can enable and disable asp.menu.

Please help me.
thanks in advance..

What I have tried:

following code is used to read xml file

private void LoadXmlData()
       {
           XmlDocument xmlDoc = new XmlDocument();
           xmlDoc.Load(Server.MapPath("~/App_Data/UserRights.xml"));

           UName = xmlDoc.GetElementsByTagName("LoginName");
           ModulList = xmlDoc.GetElementsByTagName("Modules");

          foreach(XmlNode userNode in  UName)
          {
              if (userNode.InnerText == Session["UserName"].ToString())
               {
                   Response.Write("UserVame="+userNode.InnerText);
                   foreach (XmlNode moduleNode in ModulList)
                   {
                       Modules.Add(moduleNode.InnerText);

                   }

               }
           }

       }

this shows me all users modules list.

this is my xml file

<Root xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <Rights>
    <Right>
      <LoginName>Kundan.Khadapkar</LoginName>
      <Modules>Inter-Location Transfer</Modules>
    </Right>
    <Right>
      <LoginName>Kundan.Khadapkar</LoginName>
      <Modules>FileDownloder</Modules>
    </Right>

    
    <Right>
      <LoginName>Kundan.Khadapkar</LoginName>
      <Modules>Item Master</Modules>
    </Right>
    <Right>
      <LoginName>Pranaysail</LoginName>
      <Modules>Inter-Location Transfer</Modules>
    </Right>

    <Right>
      <LoginName>Pranaysail</LoginName>
      <Modules>UpLoadDownloadSetup</Modules>
    </Right>
    <Right>
      <LoginName>Abhijit.Adik</LoginName>
      <Modules>Inter-Location Transfer</Modules>
    </Right>
    <Right>
      <LoginName>Abhijit.Adik</LoginName>
      <Modules>FileDownloder</Modules>
    </Right>
  </Rights>
</Root>

Here i want only selected users modules list..

Posted 2-May-17 18:39pm

SujataJK

Updated 3-May-17 1:31am

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SujataJK 3-May-17 6:46am

Somebody please help me...

1 solution

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Wessel Beulink · Answer 1 · 2017-05-03T01:31:00

Solution 1

You want to use appendChild for creating new child in the current file.
I don't see Modules think it is a list or something.

private void LoadXmlData()
       {
           XmlDocument xmlDoc = new XmlDocument();
           xmlDoc.Load(Server.MapPath("~/App_Data/UserRights.xml"));
           var userList = new list(of string, string)
           var nodes = (xmlDoc.GetElementsByTagName("Rights")[0]).GetElementsByTagName("Right");

           foreach (node in nodes)
           {
               var login = node.GetElementsByTagName("UserName")[0];
               var module = node.GetElementsByTagName("Modules")[0];

               // this is what you would like to do instead of write appendChild
               newNode = xmlDoc.createElement("UserVame");
               node.GetElementsByTagName("Modules")[0].appendChild(newNode)

               //you can save it if needed
               userList.add(login, module)
           }
       }

Posted 3-May-17 1:31am

Wessel Beulink

Updated 4-May-17 23:44pm

v3

Comments

SujataJK 4-May-17 0:50am

thanks @Wessel

but following line shows errors
//i think deceleration error in var userlist
var userList = new list(of string, string)

var nodes = (xmlDoc.GetElementsByTagName("Rights")[0]).GetElementsByTagName("Right");

Wessel Beulink 4-May-17 7:09am

Duplicated entry?

SujataJK 4-May-17 7:16am

i can't understand what you are asking.

Wessel Beulink 4-May-17 7:50am

You need to import generics it's generic.list delete te line if you don't want to save Te values

SujataJK 5-May-17 2:31am

Now it shows error at
var nodes = (xmlDoc.GetElementsByTagName("Rights")[0]).GetElementsByTagName("Right");

Wessel Beulink 5-May-17 3:22am

What is the error it shows you?

SujataJK 5-May-17 4:58am

Error 1 'System.Xml.XmlNode' does not contain a definition for 'GetElementsByTagName' and no extension method 'GetElementsByTagName' accepting a first argument of type 'System.Xml.XmlNode' could be found (are you missing a using directive or an assembly reference?) D:\SujataShare\JKViasion17042017\JKVision\JKVision\Site.Master.cs 65 68 JKVision

Wessel Beulink 5-May-17 5:45am

Sorry my bad. You need to define array type zero GetElementsByTagName("UserName")[0]; 'updated solution.'

SujataJK 5-May-17 6:49am

you mean like this
var nodes = (xmlDoc.GetElementsByTagName("UserName")[0]);

Wessel Beulink 5-May-17 7:29am

yes

SujataJK 5-May-17 7:41am

Ok.