public void UpdateSiteMap(string Addr,string NewOpr)

 if (NewOpr != "add")
{
XmlElement xmlElement = xmlDoc.DocumentElement;
if (xmlElement.ChildNodes != null)
{
  foreach (XmlElement myElement in xmlDoc.DocumentElement)
  {
if (myElement.ChildNodes[0].InnerText == Addr)
{
  if (NewOpr != "delete")
myElement.ChildNodes[1].InnerText = DateTime.Now.ToString("yyyy-MM-dd");
  else
myElement.ParentNode.RemoveChild(myElement);
break;
}
  }
}
}

 else
{
string ns="http://www.sitemaps.org/schemas/sitemap/0.9";
XmlNode url = xmlDoc.CreateNode(XmlNodeType.Element, "url",ns );
XmlNode loc = xmlDoc.CreateNode(XmlNodeType.Element, "loc", ns);
XmlNode lastmod = xmlDoc.CreateNode(XmlNodeType.Element, "lastmod", ns);
XmlNode changefreq = xmlDoc.CreateNode(XmlNodeType.Element, "changefreq", ns);
XmlNode priority = xmlDoc.CreateNode(XmlNodeType.Element, "priority", ns);
loc.InnerText = Addr;
lastmod.InnerText = DateTime.Now.ToString("yyyy-MM-dd");
changefreq.InnerText = "always";
priority.InnerText = "1";
url.AppendChild(loc);
url.AppendChild(lastmod);
url.AppendChild(changefreq);
url.AppendChild(priority);
xmlDoc.DocumentElement.AppendChild(url);
}

//
Add Info In Table
//
updateSiteMap updateSiteMap = new updateSiteMap();
updateSiteMap.UpdateSiteMap("Url Page", "add");

 updateSiteMap updateSiteMap = new updateSiteMap();
updateSiteMap.UpdateSiteMap("Url Page", "edit");

  updateSiteMap updateSiteMap = new updateSiteMap();
updateSiteMap.UpdateSiteMap("Url Page", "delete");

public override IResourceProvider CreateLocalResourceProvider(string virtualPath)
{
  if (!string.IsNullOrEmpty(virtualPath))
  {
    virtualPath = virtualPath.Remove(0, virtualPath.IndexOf('/') + 1); // removes everything from start to the first '/'
  }
  return new LocalDbResourceProvider(virtualPath);
}

using System.Collections.Generic;
using System.Globalization;
using DbResourceProvider.Data;
namespace DbResourceProvider
{
  public class DbResourceManager
  {
    private readonly string _resourceName;
    private readonly Dictionary<string, Dictionary<string, object>> _resourceCacheByCulture;
    public DbResourceManager(string resourceName)
    {
      _resourceName = resourceName;
      _resourceCacheByCulture = new Dictionary<string, Dictionary<string, object>>();
    }
    public object GetObject(string resourceKey, CultureInfo culture)
    {
      return GetCachedObject(resourceKey, culture.Name);
    }
    private object GetCachedObject(string resourceKey, string cultureName)
    {
      if (!_resourceCacheByCulture.ContainsKey(cultureName))
        _resourceCacheByCulture.Add(cultureName, new Dictionary<string, object>());
      var cachedResource = _resourceCacheByCulture[cultureName];
      lock (this)
      {
        if (!cachedResource.ContainsKey(resourceKey))
        {
          var data = new ResourceData(_resourceName);
          var dbResource = data.GetResource(resourceKey, cultureName);
          if (dbResource == null) return null;
          var cachedResources = _resourceCacheByCulture[cultureName];
          cachedResources.Add(dbResource.Key, dbResource.Value);
        }
      }
      return cachedResource[resourceKey];
    }
  }
}

private object GetCachedObject(string resourceKey, string cultureName)
{
  lock (this)
  {
    if (!_resourceCacheByCulture.ContainsKey(cultureName))
    {
      _resourceCacheByCulture.Add(cultureName, new Dictionary<string, object>());
      var cachedResources = _resourceCacheByCulture[cultureName];
      var data = new ResourceData(_resourceName);
      var dbResources = data.GetResources(cultureName);
      foreach (var dbResource in dbResources)
      {
        cachedResources.Add(dbResource.Key, dbResource.Value);
      }
    }
  }
  var cachedResource = _resourceCacheByCulture[cultureName];
  return !cachedResource.ContainsKey(resourceKey) ? null : cachedResource[resourceKey];
}

using System.Collections;
using System.Collections.Generic;
using System.Globalization;
namespace DbResourceProvider
{
  public class CultureFallbackProvider : IEnumerable<CultureInfo>
  {
    private readonly CultureInfo _startingCulture;
    private readonly CultureInfo _neutralCulture;
    private readonly bool _tryParentCulture;
    public CultureFallbackProvider(CultureInfo startingCulture = null, 
                                   CultureInfo neutralCulture = null, 
                                   bool tryParentCulture = true)
    {
      _startingCulture = startingCulture ?? CultureInfo.CurrentUICulture;
      _neutralCulture = neutralCulture;
      _tryParentCulture = tryParentCulture;
    }
    #region Implementation of IEnumerable<CultureInfo>
    public IEnumerator<CultureInfo> GetEnumerator()
    {
      var reachedNeutralCulture = false;
      var currentCulture = _startingCulture;
      do
      {
        if (_neutralCulture != null && currentCulture.Name == _neutralCulture.Name)
        {
          yield return CultureInfo.InvariantCulture;
          reachedNeutralCulture = true;
          break;
        }
        yield return currentCulture;
        currentCulture = currentCulture.Parent;
      } while (_tryParentCulture && !HasInvariantCultureName(currentCulture));
      if (!_tryParentCulture || HasInvariantCultureName(_startingCulture) || reachedNeutralCulture)
        yield break;
      yield return CultureInfo.InvariantCulture;
    }
    #endregion
    #region Implementation of IEnumerable
    IEnumerator IEnumerable.GetEnumerator()
    {
      return GetEnumerator();
    }
    #endregion
    private bool HasInvariantCultureName(CultureInfo culture)
    {
      return culture.Name == CultureInfo.InvariantCulture.Name;
    }
  }
}

public object GetObject(string resourceKey, CultureInfo culture)
{
  foreach (var currentCulture in new CultureFallbackProvider(culture))
  {
    var value = GetCachedObject(resourceKey, currentCulture.Name);
    if (value != null) return value;
  }
  throw new KeyNotFoundException("The specified 'resourceKey' not found.");
}

<asp:Label ID="Label1" runat="server" meta:resourcekey="Label1" />
<asp:Label ID="Label2" runat="server" meta:resourcekey="Label2" />

<globalization uiCulture="fa" resourceProviderFactoryType = "DbResourceProvider.DbResourceProviderFactory, DbResourceProvider" />