timespan

问题 In the example below, why does the Milliseconds property return 0 but the TotalMilliseconds property return 5000 // 5 seconds TimeSpan intervalTimespan = new TimeSpan(0, 0, 5); // returns 0 intervalTimespan.Milliseconds; // returns 5000.0 intervalTimespan.TotalMilliseconds 回答1: Simple: Milliseconds are the remaining milliseconds, that don't form a whole second. TotalMilliseconds is the complete duration of the timespan expressed as milliseconds. 回答2: Because Milliseconds returns the

问题 Does Java have a data type that represents a period of time eg 34 seconds, 5 minutes etc. I've seen a few implementations of a TimeSpan that cover a Time period like from the 10th of December to the 11th of December. What I need is something like TimeSpan in C#. 回答1: Not a part of the JDK currently, but will be incorporated in JDK 7 - try Joda Time 来源： https://stackoverflow.com/questions/439903/java-equivalent-to-cs-timespan

问题 I have variable that is come from wcf with http call to javascript is like "P18DT5H" C#: param.time = new TimeSpan(18, 5, 0, 0); I want to convert hours and minutes? Should I use regular expression? 回答1: You can use ParseExact : string span = "P18DT5H"; IFormatProvider formatProvider = System.Globalization.CultureInfo.InvariantCulture; TimeSpan timeSpan = TimeSpan.ParseExact(span, "'P'd'DT'h'H'", formatProvider); int hours = (int)Math.Floor(timeSpan.TotalHours); int minutes = (int)Math.Round

问题 I have timestamps in the format ( Year.Month.Day ) in an XML file. I need to find out the difference between two timestamps in days. Sample Timestamps: <Time Stamp="20181015"> <Time Stamp="20181012"> How can I find the number of days between the above timestamps? Number of days = date2 - date1 . I am considering all the days (don't need to skip weekends or any other day). Time-zone does not matter as well. PS: I understand that I have to parse the timestamp from XML. I am stuck in the logic

问题 Programming in C#.NET. I have a DataTable with a column named Time which is of type System.TimeSpan. When I display the DataTable in a DataGridView I want to filter out all the entries that don't have a time listed. I have tried the following but to no avail. Can you help? DataView myDataView = new DataView(SomeDataTable); myDataView.RowFilter += "Time >= 1"; // doesn't work myDataView.RowFilter += "Time >= #00:00:01#"; // doesn't work myDataView.RowFilter += "Time <> ''"; // doesn't work

问题 I am using the TimeSpan.ParseExact method to parse a time span. However, why does the following fail and throw an exception? string time = "23:10:00"; string format = "HH:mm:ss"; TimeSpan timeSpan = TimeSpan.ParseExact(time, format, CultureInfo.InvariantCulture); Judging from the Custom Date and Time Format Strings article on MSDN, the format is correct for this input string. Any ideas? 回答1: You linked to the custom DateTime format specifiers - but you're not parsing to DateTime , you're

问题 I'm trying to use google forms for a research questionnaire. for some of the sections I want to automatically measure the time takes the user to fill. there is no option like this in google forms. I've tried to copy the form source, and fill the time with javascript but it didn't worked (Cross-Origin issue) - Didn't succeed to host the copied form. How it can be done - how can I measure the time that took to answer a form? is there an other forms-like service that allow measuring time per

问题 I'm converting something from SQL Server to PostgreSQL. There's a table with a calculated field between a BeginTime and an EndTime called MidTime. The times are offsets from the beginning of a video clip and will never be more than about 6 minutes long. In SQL Server, BeginTime, EndTime, and MidTime are all TimeSpans. You can use this as the function: DATEADD(ms, DATEDIFF(ms,BeginTime, EndTime)/2, BeginTime) Which is taking the difference in the two timespans in millseconds, dividing it by 2,

问题 I have a stopwatch timer that I've added to my program. It's working fine on my Win 7 machine, and on the Vista machines I've tried, but in XP, the hrs and mins zeros disappear when the timer starts, but will come back if I reset the timer. Here's all of my code that I have for the timer. I've removed everything that didn't seem necessary to diagnose the problem: DateTime startTime, stopTime; TimeSpan stoppedTime; bool reset; private void btnStopwatchStart_Click(object sender, EventArgs e) {

问题 I am working on a project that needs to check time difference between a particular time in the past and now, and to output the diff in MINUTES only. Example if the Diff is 2hour 3min. the output should be 123 (ie 2hr(120 minutes) + 3min). I used CodeIgniter timespan() function, but it only returns something like 2hours 3minutes. Is there a way I can get the required output? 回答1: Do you need something like this ? $tomorrow = mktime(0, 0, 0, date("m") , date("d")+1, date("Y")); $today = mktime