/// <summary>
/// Displays a error message for the passed <see cref="Exception"/>.
/// </summary>
/// <param name="ex">The <see cref="Exception"/> that was thrown.</param>
/// <param name="viewModel">The view model which caused the <see cref="Exception"/>.</param>
/// <param name="callerName">The name of the method which caused the <see cref="Exception"/>.</param>
public static void DisplayError(Exception ex, object viewModel, [CallerMemberName] string callerName = null)
{
if (_handler == null)
{
throw new MessageHandlerNotRegisterdException("There is no registered message handler!");
}
string viewName = ViewManager.GetViewForViewModel(viewModel).GetType().Name;
string exName = ex.GetType().Name;
Match viewNameMatch = _viewNameRegex.Match(viewName);
Match exNameMatch = _exceptionNameRegex.Match(exName);
if (viewNameMatch.Success)
{
viewName = viewNameMatch.Groups["Name"].Value;
}
if (exNameMatch.Success)
{
exName = exNameMatch.Groups["Name"].Value;
}
string messageKey = GetResourceKey(_messageDefinition, viewName, exName, callerName);
string messageTitleKey = GetResourceKey(_messageTitleDefinition, viewName, exName, callerName);
string message = ResourceHandler.GetResource(messageKey);
string messageTitle = ResourceHandler.GetResource(messageTitleKey);
_handler.DisplayError(viewModel, ReplaceExceptionInformations(messageTitle, ex), ReplaceExceptionInformations(message, ex));
}