Possible Duplicate:
How do I calculate relative time?
I would like to use asp.net c# to calculate the timespan for when a file was uploaded. Example, if i uploaded a file two weeks ago my text will say 'uploaded 2 weeks ago' or if i have upload a file 4 month's ago my text will say 'uploaded 4 months ago'
Can anyone please give me some tips on how i can go about this.
Thanks
I had this issue and created TimeSpan extension class as below.
For usage you just use ToFriendlyString() on the TimeSpan instance.
public static class TimeSpanExtensions
{
public static string ToFriendlyString(this TimeSpan t)
{
return ToFriendlyString(t, Thread.CurrentThread.CurrentCulture);
}
public static string ToFriendlyString(this TimeSpan t, CultureInfo cultureInfo)
{
if(cultureInfo.IetfLanguageTag.StartsWith("en"))
{
return ToFriendlyString_English(t);
}
else
{
throw new NotSupportedException("This culture is currently not supported.");
}
}
private static string ToFriendlyString_English(TimeSpan t)
{
int years = t.Days/365;
int months = t.Days/30;
int weeks = t.Days/7;
if (years > 0)
{
return string.Format("{0} year{1}", years, years > 1 ? "s" : "");
}
if (months > 0)
{
return string.Format("{0} month{1}", months, months > 1 ? "s" : "");
}
if (weeks > 0)
{
return string.Format("{0} week{1}", weeks, weeks > 1 ? "s" : "");
}
if (t.Days > 0)
{
return string.Format("{0} day{1}", t.Days, t.Days > 1 ? "s" : "");
}
if (t.Hours > 0)
{
return string.Format("{0} hour{1}", t.Hours, t.Hours > 1 ? "s" : "");
}
if (t.Minutes > 0)
{
return string.Format("{0} minute{1}", t.Minutes, t.Minutes > 1 ? "s" : "");
}
if (t.Seconds > 0)
{
return string.Format("{0} second{1}", t.Seconds, t.Seconds > 1 ? "s" : "");
}
return "now";
}
}
You can get the timespan using DateTime.Now - dateTimeOfUpload. This will produce a TimeSpan object. From this object, you can use e.g. the TotalDays to give the number of months the dateTimeOfUpload is in the past.
