I have a user request that I'm trying to accommodate, the simplest way I can think to explain is to use illustrate with a picture:
Essentially the user is typing a ton of dates in. Instead of typing the
MM [Backslash (Or Right Arrow)]
DD [Backslash]
YYYY [Backslash] etc ...
They'd like to Key the value and be moved to the next Date Part Value. While this doesn't seem like much I can imagine it adds up to allot of additional keystrokes and takes the end user off the number pad. I'm currently using Telerik's Winform RadDateTimePicker with Custom Format:
MM/dd/yyyy hh:mm tt
but would not be opposed to changing to the Winforms DateTimePicker.
Can anyone suggest an elegant solution for this ? The only thing I can currently think of is catching the keystrokes when the control is in focus but I feel like this could be messy.
Thankyou
RadMaskedEditBox (and respectively RadDateTimeEditor, which uses RadMaskedEditBox internally), have build in functionality to select the next part, however, it seems it does not work correctly with this mask, so I reported it as an issue. Here is the link to it: issue link. You can subscribe for status change alerts in order to get notified once its done.
What you can look at is the free form date time parsing introduced recently. It allows you to type in "10162014" which will get parsed to "10\16\2014". More information no parsing dates is available here: Parsing Dates
And the last thing would be to work with KeyDown and manually move the selection. There is API for this on the provider. Here is how to access it:
(this.radDateTimePicker1.DateTimePickerElement.TextBoxElement.Provider as MaskDateTimeProvider).SelectNextEditableItem();
I hope some of this works for you.
This is not intended to be a link answer but I have to refer to the Telerik documentation to allow the OP to customize the control according to his needs.
My understanding is that your customer needs to type the date and time in a specific culture avoiding to type the separators.
You should use the maskedEditBox which already have a mask for your need MM/dd/yyyy hh:mm tt
Particularly you should set the pattern "s" which correspond to "Sortable date time pattern (based on ISO 8601) using local time"
Have a look at Telerik documentation here to set up your control as needed and the relevant validator.
This should solve your problem.
This is how it looks when empty:
and this si show it appears when filled in:
Using the relevant event (I have used radMaskedEditBox1_Leave) you can still use also a dateTimePicker taking the input from the radMasketTextBox:
dateTimePicker1.Format = DateTimePickerFormat.Custom;
dateTimePicker1.CustomFormat = "dd/MM/yyyy HH:mm ss";
dateTimePicker1.Text = radMaskedEditBox1.Text;
Please check below URL fiddle URL for datetime mask:
1]. http://jsfiddle.net/jensbits/3yUes/light/
2]. http://jsfiddle.net/LkpPJ/5/
Related
My input is an annoying free text in which I need to extract the date. This date could be present in any of the formats with anomalies.
eg. This is 9.9.12 date
This is 9912 date
This is 0992012 date
Any possible format.
dMy
ddMMyy
ddMMyyyy
Mdyy etc..
I am able to validate if the text is in date format for ddMMy* but not any other. I was looking into this https://www.c-sharpcorner.com/blogs/date-and-time-format-in-c-sharp-programming1 link to see what other formats could be possible but I got no leads.
Is this correct to write like in the following method for a date format say - 9912?
Date.ParseExact(test.ToString,"dMy", Globalization.CultureInfo.InvariantCulture)
If yes, the system is populating me the following err:
System.FormatException: String was not recognized as a valid DateTime.
Can anyone please share a reliable approach to tackle such problems?
There is no single way to accomplish what you're trying to do. Specifically, because the intent is so broad, it becomes hard to infer what the user actually means (e.g. how do you differentiate month vs. day).
Depending on how you're implementing your application, you need to implement input validation.
For a console app, I can envision you using something like:
if (DateTime.TryParse(line, out value))
{
// Parse-able date.
}
else
{
// Non-parseable date.
}
If you're building a WPF application, you can use binding validation. If you're building an ASP.NET MVC application, you can also implement model validation. Your mileage may vary - you should definitely consider constraining what your users can feed the application.
I need to add a date to a contract. The lawyers say the date must be displayed as the first of the month.
In the past I've always created a new date, and formatted that date for the display.
NewEffDate = new DateTime(effectiveDate.Year, effectiveDate.Month, 1);
NewEffDate.ToString("MM/dd/yyyy");
It occurred to me, I could simply do this when I format the date for display.
effectiveDate.ToString("MM/1/yyyy");
Is there any reason I shouldn't do it with ToString?
I'm wondering if I'm dense for not seeing this previously or dense because it's not a good idea to do this when formatting.
The short answer - no, looks fine.
The longer answer - it depends: what else do you do with NewEffDate? how many lines of code separate from it to its ToString? These questions will guide to an easier maintenance :)
If you only need to print this date, you are free to use it.
I recommend you to use the following to get the first day of the month:
NewEffDate = new DateTime(effectiveDate.Year, effectiveDate.Month, 1);
followed by using this piece of your code:
NewEffDate.ToString("MM/dd/yyyy");
Anyway, your solution works too and it is save to use it. But I prefer using the above code for this problem.
I am wondering what is the best way to figure out how to convert a datetime?
Right now my computer is setup as dd/mm/yyyy yet I am taking date as mm/dd/yyy so when I try to do
DateTime.Convert();
DateTime.Parse();
DateTime.TryParse();
I either get nothing back or it crashes. Now I could tell it about the mm/dd/yyyy format and it probably would convert. However the problem is these dates are are coming from user uploaded files.
They could be in any format combination. I am trying to find ways to do it.
The problem I see is that I am looking at the dates in an uploaded file so I am not sure if looking say at the browser date format would help or not.
I am using asp.net mvc and I am trying to get a solution that handle date formats automatically so I don't have to ask the user about the date format they have (I figure the more things I have to ask them the less likely the user will continue on)
No, you can't figure out automatically what date-time format a user meant to use once the value is on the server. You need more information to parse it correctly (e.g. 1/2/3 can mean a lot of different dates depending on the culture).
Consider one of the following solutions:
Convert the entered date to a text representation in a standard format (i.e. ISO 8601 - 2012-02-09) using JavaScript on the client before you send it to the server. The code would look something like this: d.getUTCFullYear()+"-" + d.getUTCMonth() + "-" + d.getUTCDate().
Send the local culture information to the server along with date value to be converted and do the conversion on the server.
Force the user to enter the date in a specific format (e.g. Use 3 text boxes labeled "Month", "Day", and "Year" instead of one text box with free input).
chobo2 (I like the 'handle') :)
you can detect the locale culture and work on that at will. see the following SO Q/A for pointers:
Where is the system locale/culture set for .Net
the key is to NOT have to set anything in particular, but identify the locale and act accordingly.
In My Asp.net webpage I need to display today's date into one of the textbox , so in my form load I wrote the following code
textbox1.text = System.DateTime.Today.ToShortDateString();
this line is giving me date like 1/7/09 but I want date like 01/07/09 , Is there anyway I can conver this date into mm/dd/yy format in C#?
DateTime.Today.ToString("MM/dd/yy")
Look at the docs for custom date and time format strings for more info.
(Oh, and I hope this app isn't destined for other cultures. That format could really confuse a lot of people... I've never understood the whole month/day/year thing, to be honest. It just seems weird to go "middle/low/high" in terms of scale like that.)
DateTime.Today.ToString("MM/dd/yy")
Look at the docs for custom date and time format strings for more info.
(Oh, and I hope this app isn't destined for other cultures. That format could really confuse a lot of people... I've never understood the whole month/day/year thing, to be honest. It just seems weird to go "middle/low/high" in terms of scale like that.)
Others cultures really are a problem. For example, that code in portugues returns someting like 01-01-01 instead of 01/01/01. I also don't undestand why...
To resolve that problem i do someting like this:
IFormatProvider yyyymmddFormat = new System.Globalization.CultureInfo(String.Empty, false);
return date.ToString("MM/dd/yy", yyyymmddFormat);
Have you tried the following?:
textbox1.text = System.DateTime.Today.ToString("MM/dd/yy");
Be aware that 2 digit years could be bad in the future...
Look into using the ToString() method with a specified format.
See, here you can get only date by passing a format string.
You can get a different date format as per your requirement as given below for current date:
DateTime.Now.ToString("M/d/yyyy");
Result : "9/1/2016"
DateTime.Now.ToString("M-d-yyyy");
Result : "9-1-2016"
DateTime.Now.ToString("yyyy-MM-dd");
Result : "2016-09-01"
DateTime.Now.ToString("yyyy-MM-dd hh:mm:ss");
Result : "2016-09-01 09:20:10"
For more details take a look at MSDN reference for Custom Date and Time Format Strings
Is it possible to use DateTimePicker (Winforms) to pick both date and time (in the dropdown)? How do you change the custom display of the picked value? Also, is it possible to enable the user to type the date/time manually?
Set the Format to Custom and then specify the format:
dateTimePicker1.Format = DateTimePickerFormat.Custom;
dateTimePicker1.CustomFormat = "MM/dd/yyyy hh:mm:ss";
or however you want to lay it out. You could then type in directly the date/time. If you use MMM, you'll need to use the numeric value for the month for entry, unless you write some code yourself for that (e.g., 5 results in May)
Don't know about the picker for date and time together. Sounds like a custom control to me.
It is best to use two DateTimePickers for the Job
One will be the default for the date section and the second DateTimePicker is for the time portion. Format the second DateTimePicker as follows.
timePortionDateTimePicker.Format = DateTimePickerFormat.Time;
timePortionDateTimePicker.ShowUpDown = true;
The Two should look like this after you capture them
To get the DateTime from both these controls use the following code
DateTime myDate = datePortionDateTimePicker.Value.Date +
timePortionDateTimePicker.Value.TimeOfDay;
To assign the DateTime to both these controls use the following code
datePortionDateTimePicker.Value = myDate.Date;
timePortionDateTimePicker.Value = myDate.TimeOfDay;
Unfortunately, this is one of the many misnomers in the framework, or at best a violation of SRP.
To use the DateTimePicker for times, set the Format property to either Time
or Custom (Use Custom if you want to control the format of the time using
the CustomFormat property). Then set the ShowUpDown property to true.
Although a user may set the date and time together manually, they cannot use the GUI to set both.
DateTime Picker can be used to pick both date and time that is why it is called 'Date and Time Picker'. You can set the "Format" property to "Custom" and set combination of different format specifiers to represent/pick date/time in different formats in the "Custom Format" property. However if you want to change Date, then the pop-up calendar can be used whereas in case of Time selection (in the same control you are bound to use up/down keys to change values.
For example a custom format " ddddd, MMMM dd, yyyy hh:mm:ss tt " will give you a result like this : "Thursday, August 20, 2009 02:55:23 PM".
You can play around with different combinations for format specifiers to suit your need e.g MMMM will give "August" whereas MM will give "Aug"
Go to the Properties of your dateTimePickerin Visual Studio and set Format to Custom. Under CustomFormat enter your format. In my case I used MMMMdd, yyyy | hh:mm
You can get it to display time. From that you will probably have to have two controls (one date, one time) the accomplish what you want.
I'm afraid the DateTimePicker control doesn't have the ability to do those things. It's a pretty basic (and frustrating!) control. Your best option may be to find a third-party control that does what you want.
For the option of typing the date and time manually, you could build a custom component with a TextBox/DateTimePicker combination to accomplish this, and it might work reasonably well, if third-party controls are not an option.
If you need (24 hours) military time. You should use "HH" instead of "hh".
"MM/dd/yyyy HH:mm"