如何在视图中显示月份名称而不是月份编号？

Question

如何在视图中显示月份名称而不是月份数字？

操作方法：

public ActionResult MyPerformance()
{
    int year = DateTime.Now.Year;
    DateTime firstDay = new DateTime(year, 1, 1);
    DateTime lastDay = new DateTime(year, 12, 31).AddDays(1).AddSeconds(-1);

    var result = db.Chats
        .Where(c => System.Data.Entity.DbFunctions.TruncateTime(c.MSTChatCreatedDateTime) >= firstDay &&
                    System.Data.Entity.DbFunctions.TruncateTime(c.MSTChatCreatedDateTime) <= lastDay)
        .Select(x => new { x.MSTChatCreatedDateTime })
        .ToList()
        .GroupBy(c => new
        {
            Year = c.MSTChatCreatedDateTime.ToCleanDateTime().Year,
            Month = c.MSTChatCreatedDateTime.ToCleanDateTime().Month
        })
        .Select(c => new ReportVM
        {
            Title = string.Format("{0}", c.Key.Month),  //chart x Axis value.
            ChatCountCreatdDate = c.Count() //chart y Axis value.
        })
        .ToList();

    return View(result);
}

在视图中反映的数据是正确的，但我无法在视图中呈现月份名称。

请参阅随附的显示月份数字的图片。

谢谢！

Answer 1

您可以在“MMM”中格式化显示名称，这是您的代码

public ActionResult MyPerformance()
{
    int year = DateTime.Now.Year;
    DateTime firstDay = new DateTime(year, 1, 1);
    DateTime lastDay = new DateTime(year, 12, 31).AddDays(1).AddSeconds(-1);

    var result = db.Chats
        .Where(c => System.Data.Entity.DbFunctions.TruncateTime(c.MSTChatCreatedDateTime) >= firstDay &&
                    System.Data.Entity.DbFunctions.TruncateTime(c.MSTChatCreatedDateTime) <= lastDay)
        .Select(x => new { x.MSTChatCreatedDateTime })
        .ToList()
        .GroupBy(c => new
        {
            Year = c.MSTChatCreatedDateTime.ToCleanDateTime().Year,
            Month = c.MSTChatCreatedDateTime.ToCleanDateTime().Month
        })
        .Select(c => new ReportVM
        {
            Title = c.MSTChatCreatedDateTime.ToCleanDateTime().ToString("MMMM"),  //chart x Axis value.
            ChatCountCreatdDate = c.Count() //chart y Axis value.
        })
        .ToList();

    return View(result);
}