Unable to save the changes in XML file

Question

i am facing problem when i try to save the XML file i store the XML file in Assets folder and set build action to Android Assets but when xml.Save("Q317664.xml"); line comes it gives exception System.UnauthorizedAccessException: Access to the path "/Q317664.xml" is denied.i am not sure why this is occurring

using System;
using Android.App;
using Android.Content;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;
using System.IO;
using System.Reflection;
using Android.Content.Res;
using System.Xml;
using System.Xml.Linq;
using System.Xml.XPath;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace App17
{
[Activity(Label = "App17", MainLauncher = true, Icon = "@drawable/icon")]
public class MainActivity : Activity
{
    int count = 1;

    protected override void OnCreate(Bundle bundle)
    {
        base.OnCreate(bundle);

        // Set our view from the "main" layout resource
        SetContentView(Resource.Layout.Main);

        // Get our button from the layout resource,
        // and attach an event to it
        var xml = XDocument.Load(Assets.Open("Q317664.xml"));
        var node = xml.Descendants("Book").FirstOrDefault(cd => cd.Attribute("Id").Value == "1");
        node.SetAttributeValue("ISBN", "new");
        xml.Save("Q317664.xml");
     //   Button button = FindViewById<Button>(Resource.Id.MyButton);

       // button.Click += delegate { button.Text = string.Format("{0} clicks!", count++); };
    }
}
}

See: http://stackoverflow.com/questions/10562904/is-asset-folder-read-only — Morrison Chang, Apr 17 '16 at 13:44
@Morrison Chang Then where i store the xml file so that i can change the attribute of xml file please help me — Asad Ahmad, Apr 17 '16 at 13:49

score 0 · Answer 1 · answered Apr 17 '16 at 13:47

0

We cannot edit and save the XML file in Assets folder. Files in Assets folder are files containing static data that are shipped with APK. We cannot write to it. You can read the xml edit it and then probably save the file to App's Directory.

answered Apr 17 '16 at 13:47

Sreeraj

2,306
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How i can save xml file to app directory i am new to xamarin please help me – Asad Ahmad Apr 17 '16 at 13:57
Please check the answer by @jason – Sreeraj Apr 17 '16 at 14:28

score 0 · Answer 2 · answered Apr 17 '16 at 14:10

0

In Xamarin Android

var path = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
var filename = Path.Combine(path, "myFile.xml");

File.WriteAllText(filename,xml.ToString());

answered Apr 17 '16 at 14:10

Jason

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15
131
146

Unable to save the changes in XML file

2 Answers2

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