在Razor View中将小时的整数值转换为格式化的小时

Question

I'm trying to convert my integer value of hours, 0-23 into a nicely formatted one like:

15 would be represented like: 15:00
0 would be represetnted like: 00:00
23 like: 23:00

This is the code from my view:

 @foreach (var item in ViewBag.HourlyGraph)
 {
   @:{device: '@item.Hour', geekbench:@item.Sales },
 }

I'm trying to represent the @item.Hour value like I mentioned above. I've tried using interpolated string like this:

"{@item.Hour}:00"

But in my view says it's not supported since I use C# 5.0 instead of C# 6.0 ...

How could do this instead of using interpolated strings?

Answer 1

您可以对整数使用标准的字符串格式，如果需要，该格式将以零开头：

@item.Hour.ToString("D2")

Answer 2

Can you just use the ToString method?

 @foreach (var item in ViewBag.HourlyGraph)
 {
   @:{device: '@item.Hour.ToString("00")<text>:00</text>', geekbench:@item.Sales },
 }