private void LoadLanguage()
{
if (Language == SystemLanguage.Undefined)
{
Language = (SystemLanguage)Enum.Parse(typeof(SystemLanguage),
GridConfig.Get("WGLanguage", SystemLanguage.English.ToString()),
true);
}
string cacheobjectSystemMessages = string.Format("{0}_{1}_{2}_SystemMessages_{3}", ClientID, Trace.ClientID, DataSourceId, Language);
if (m_GridSystemMessages != null)
{
return;
}
if (DesignMode == false && HttpRuntime.Cache != null && Equals(CacheGridStructure, true) &&
HttpRuntime.Cache.Get(cacheobjectSystemMessages) != null)
{
m_GridSystemMessages = HttpRuntime.Cache.Get(cacheobjectSystemMessages) as SystemMessages;
if (Debug)
{
m_DebugString.AppendFormat("<b>Cache</b> - Loading system messages from cache object: {0}<br/>",
cacheobjectSystemMessages);
}
return;
}
if (Trace.IsTracing)
{
Trace.Trace("{0} : Started LoadLanguage()", ID);
}
// What language should we load?
string systemmessagefile = SystemMessageDataFile;
try
{
if (systemmessagefile != null &&
systemmessagefile.StartsWith("http://", StringComparison.OrdinalIgnoreCase) == false)
{
if (Equals(DesignMode, true) && Site != null)
{
systemmessagefile = GridConfig.LoadSystemLanguages(systemmessagefile, Site);
}
else
{
systemmessagefile = GridConfig.LoadSystemLanguages(systemmessagefile);
}
}
if (systemmessagefile != null && System.IO.File.Exists(systemmessagefile) == false)
{
throw new GridException(
string.Format("The system message file '{0}' does not exists.", systemmessagefile));
}
if (string.IsNullOrEmpty(systemmessagefile))
// Load from resources if not available.
{
m_GridSystemMessages = new SystemMessages();
Assembly a = Assembly.GetExecutingAssembly(); //Assembly.Load(GetType().Assembly.GetName().Name);
Stream str = a.GetManifestResourceStream("WebGrid.Resources.WebGridMessages.xml");
if (str == null)
{
throw new GridException("WebGrid messages is not found in resources.");
}
XmlTextReader tr = new XmlTextReader(str);
XmlDocument xml = new XmlDocument();
xml.Load(tr);
XPathNavigator nav = xml.CreateNavigator();
if (nav == null)
{
throw new GridException("Unable to get a XpathNavigator for WebGrid Messages (in resources).");
}
XPathNodeIterator it = nav.Select(string.Format(@"//{0}/*", Language));
while (it.MoveNext())
{
if (string.IsNullOrEmpty(it.Current.Name) || string.IsNullOrEmpty(it.Current.Value))
{
continue;
}
m_GridSystemMessages.SetSystemMessage(it.Current.Name, it.Current.Value, null);
}
}
else
{
m_GridSystemMessages = new SystemMessages(Language, systemmessagefile, this);
}
}
catch (Exception ee)
{
throw new GridException(
string.Format("Error loading WebGrid system message file '{0}'.", systemmessagefile), ee);
}
if (HttpRuntime.Cache != null && Equals(CacheGridStructure, true))
{
HttpRuntime.Cache[cacheobjectSystemMessages] = m_GridSystemMessages;
}
if (Trace.IsTracing)
{
Trace.Trace(string.Format("{0} : Stopped LoadLanguage()", ID));
}
}