I have a date returned from database which includes even the time. i want to remove the time part of the string and send only the date. my code is as given below
DateTime Var = new DateTime();
Var = Convert.ToDateTime(Dset.Tables[1].Rows[i]["Date"]);
Var = Var.ToShortDateString();
DateTime Var = Convert.ToDateTime(Dset.Tables[1].Rows[i]["Date"]).Date; //only date part
string date = Var.ToShortDateString();
it will store only date in DateTime object
Var = Var.Date;
time will be 00:00:00
or you can store it as string:
var dateString = Var.ToShortDateString();
you can custom your date string format by using DateTime.ToSting("your format") method.
then the code will be like this.
DateTime Var = new DateTime();
Var = Convert.ToDateTime(Dset.Tables[1].Rows[i]["Date"]);
Var = Var.ToString("yyyy-MM-dd");
you can also use SubString() method to gain the date part of the datetime string.
Related
I have a string ("CompletionDate") which contains the value "2/28/2017 5:24:00 PM"
Now I have 2 variables (EDate and ETime). I want to assign the Date to EDate (i.e 2/28/2017) and Time to ETime (i.e. 5:24:00 PM).
How can I split the Date and Time from a single string.
Kindly Help.
My approach right now is like :
string CompletionDate = string.Empty;
string ProjectEDate = string.Empty;
string ProjectETime = string.Empty;
CompletionDate = "2017-03-29 12:58:00";
DateTime dt = DateTime.ParseExact(CompletionDate, "yyyy-MM-dd", CultureInfo.CreateSpecificCulture("en-us"));
DateTime dt1 = DateTime.ParseExact(CompletionDate, "HH:mm:ss", CultureInfo.CreateSpecificCulture("en-us"));
var ProjectEDate = dt.ToString();
var ProjectETime = dt1.ToString();
But its throwing exception that string is not in correct format. Kindly help
#Chris pointed one of your problems, but you have one more. You are passing full date time string and trying to treat it as date or time only, which is not true. Instead I suggest you to parse DateTime object with both date and time, and then take whatever you need from parsed object:
CultureInfo enUS = CultureInfo.CreateSpecificCulture("en-us");
DateTime dt = DateTime.ParseExact(CompletionDate, "yyyy-MM-dd HH:mm:ss", enUS);
var ProjectEDate = dt.Date.ToString();
var ProjectETime = dt.TimeOfDay.ToString();
You need to specify the full format as same as the input string to parse method.
DateTime dt = DateTime.ParseExact(CompletionDate, "yyyy-MM-dd HH:mm:ss", System.Globalization.CultureInfo.CreateSpecificCulture("en-us"));
To get results you can use below methods available by default in DateTime.
dt.ToShortTimeString()
"12:58 PM"
dt.ToLongTimeString()
"12:58:00 PM"
dt.ToLongDateString()
"Wednesday, March 29, 2017"
dt.ToShortDateString()
"3/29/2017"
Or you can specify the format to ToString method.
dt.ToString("yyyy-MM-dd")
"2017-03-29"
dt.ToString("HH:mm:ss")
"12:58:00"
DateTime.ParseExact(CompletionDate, "yyy-MM-dd", ...
You are missing 4th 'y' in date format string:
"yyyy-MM-dd"
^
here
and:
String was not recognized as a valid DateTime " format dd/MM/yyyy"
Why do you parse into DateTime and then convert to a string using ToString again? Couldn´t you just simply use String.Split when all you want is to split the time from the day and you know the exact format?
var CompletionDate = "2017-03-29 12:58:00";
var tmp = CompletionDate.Split(' ');
var ProjectEDate = tmp[0];
var ProjectETime = tmp[1];
I tried the following but couldn't get it
string s= "2015-FEB-17";
//I want it to be converted to date format as
date = "20150217"
//I tried doing as follows but didn't work
var myDate = DateTime.ParseExact(dt, "yyyy-MMM-dd", CultureInfo.InvariantCulture);
why not shorten it since you are using the .ToString("yyyyMMdd") you are dropping the time portion of the new value
string sDateStr = "2015-FEB-17";
var newDateFrmt = Convert.ToDateTime(sDateStr).ToString("yyyyMMdd");
20150217 becomes the expected answer based on the format..
not to be redundant this approach can also be taken
string sDateStr = "2015-FEB-17";
var someDate = DateTime.ParseExact(sDateStr, "yyyy-MMM-dd", CultureInfo.InvariantCulture);
var newDateFrmt = someDate.ToString("yyyyMMdd");
ParseExact turns the string into a DateTime. You then need to format the DateTime as a string.
string s= "2015-FEB-17";
DateTime myDate = DateTime.ParseExact(s, "yyyy-MMM-dd", CultureInfo.InvariantCulture);
string result = myDate.ToString("yyyyMMdd"); // now it's "20150217"
Also, you were missing dashes in the ParseExact format string.
If your application only handles US-style dates with no internationalization, it's best to specify CultureInfo.InvariantCulture.
Try
var myDate = DateTime.ParseExact(s, "yyyy-MMM-dd", CultureInfo.InvariantCulture);
var q = myDate.ToString("yyyyMMdd");
or just
var q = DateTime.ParseExact(s, "yyyy-MMM-dd", CultureInfo.InvariantCulture)
.ToString("yyyyMMdd");
I have console application that accepts date as parameter. However, the date is passed as a string in this format:
string dt = DateTime.Now.ToString("yyyyMMdd");
Once the date is entered I need to programmatically get day - 1 from the entered date. Since this is a string, I cannot do any calculation.
For example, user enters:
20141023
I need to subtract a day from the date to get:
20141022
I did a quick fix to solve my immediate need, however, this is not the right way to do it and it has a bug:
int yt = Int32.Parse(dt) - 1;
And then I turn around and convert it yt.ToString()
The above solution will not work if it's the 1st of the month.
Is there a way I can programmatically get yesterday's date in the format (yyyyMMdd) without changing the format and possibly not using the TimeSpan?
Why don't parse the input into a DateTime object? Then you can use the DateTime.AddDays(-1)
For example:
var inputDate = DateTime.ParseExact("20141022", "yyyyMMdd", CultureInfo.InvariantCulture); // change "20141022" into the inputted value
var yesterday = inputDate.AddDays(-1);
var yesterdayString = yesterday.ToString("yyyyMMdd"); // this will be yesterdays date, in the string format
Try this...
DateTime data = DateTime.ParseExact("20141023", "yyyyMMdd", CultureInfo.InvariantCulture);
Console.WriteLine("{0} - {1}", data, data.AddDays(-1).ToString("yyyyMMdd"));
Would this work for you ?
string newDateTimeStr = (DateTime.Today.AddDays(-1)).ToString("yyyyMMdd");
EDIT:
for the date entered by the user:
string txtInputDate = Console.ReadLine();
DateTime dateTime = new DateTime(txtInputDate).ToLocalTime();
string newDateTimeStr = (dateTime.AddDays(-1)).ToString("yyyyMMdd");
I have a string that is formatted as YYYYMMDD - how can i make a copy in the format YYYY-MM-DD?
// this is your original string
string _str = "20130101";
// you need to convert it to valid DateTime datatype
// so you can freely format the string to what you want
DateTime _date = DateTime.ParseExact(_str, "yyyyMMdd", CultureInfo.InvariantCulture);
// converting to your desired format, which is now a string
string _dateStr = _date.ToString("yyyy-MM-dd");
DateTime.ParseExact()
You'll have to parse the DateTime, then reformat it:
var input = ...
var inFormat = "yyyyMMdd";
var outFormat = "yyyy-MM-dd";
var date = DateTime.ParseExact(inFormat, input, CultureInfo.InvariantCulture);
var output = date.ToString(outFormat);
the safe approach is to convert it to DateTime Object , for example in .Net using below function :
DateTime.TryParseExact()
and then using the DateTime Object you can format it again. like below example :
dateTimeObject.ToString(YourFormatInString);
check MSDN for more details : http://msdn.microsoft.com/en-us/library/8kb3ddd4.aspx
I have various strings of type: 7/12/2012 12:02:39 AM
and would like to convert them all to just 7/12/2012 12:00:00 AM
Basically the date needs be the same, just the time must be set to 12:00:00 AM for all.
What is the best way to approach that? Except just looking for " " and replacing with 12:00:00 AM
First, parse them to a DateTime. Then you can use the Date property(0h) and parse it back to a String by using DateTime.ToString:
var oldDate = DateTime.Parse("7/12/2012 12:02:39 AM");
var usCulture = System.Globalization.CultureInfo.CreateSpecificCulture("en-US");
var newDateStr = oldDate.Date.ToString( usCulture );
Custom Date and Time Format Strings
only just noticed that 12 AM is midnight not highnoon
You can create new DateTime instance via constuctor:
var newDate = new DateTime(oldDate.Year, oldDate.Month, oldDate.Day, 12, 0, 0);
or by adding 12 hours to the date part of the DateTime(0h):
var newDate = oldDate.Date.AddHours(12);
Parse them as DateTime
Write them back to string using yourDateTime.Date.ToString(#"G", CultureInfo.CreateSpecificCulture("en-us"))
use DateTime.Parse and specify the CulterInfo
DateTime mydat = DateTime.Parse(myString, CultureInfo.InvariantCulture);