public void GetLatestTransactionDate(Action<DateTime, Exception> callback)
{
try
{
var client = new MainClient();
client.GetLatestTransactionDateAsync();
client.GetLatestTransactionDateCompleted += (sender, e) =>
{
if (e.Error == null)
callback(e.Result, null);
else
callback(DateTime.Now, e.Error);
};
}
catch (Exception ex)
{
callback(DateTime.Now, ex);
}
}