private async Task RunningData() {
// i want to get data in between two dates in windows phone using azure storage.
        var table = MobileService.GetTable<Tracing>();
        string date1 = "13/09/2014 12:58:42";
        string date2 = "12/09/2014 16:26:55";
        var items = await table
            .Where(Tracing => Tracing.Date == date1 || Tracing.Date==date2 )               
            .Take(PageSize)
            .Skip(this.currentIndex)
            .IncludeTotalCount()
            .ToListAsync();
        this.lstItems.ItemsSource = items;
        int totalCount = (int)((ITotalCountProvider)items).TotalCount;
        this.lblStatus.Text = string.Format("Showing items from position {0} to {1} (of {2})", currentIndex, currentIndex + PageSize - 1, totalCount);
    }