Web Forms :: How To Date Conversion On The Fly
Jul 28, 2010
Im after some advice on date format conversions. I am working on a project that has raddatepicker controls that will take values chosen in the UI and uses them as constraints on a SQL query going back to the database.
My problem lies in the fact that the UI has a sensible date format (dd/mm/yyyy), whereas the database stored dates as "the number of seconds past 00:00:00 01/01/1970". In T-SQL, I can convert using:
[Code]....
I have no idea how to achieve this same conversion in C# so the user can choose a friendly format, but subsequently pass back the database date format.
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Similar Messages:
Aug 12, 2013
I have label which displays date time from database as
string due1 = myreader.GetDateTime(20).ToString("yyyy-MM-dd");
label26.Text = due1;
I want it to be displaye as dd-mm-yyyy on the label
or like 12-aug-2013.
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Nov 20, 2012
i want to search record with dropdown list and text box
i have fields in dropdown like
1.Orthopedics
2.Clinic
3.Pharmacy
4.ENT
when i select one field and type date in text box i want a list of record submitted on this date with the specific field
I Tried This
protected void Button1_Click(object sender, EventArgs e)
{
DateTime date1 = Convert.ToDateTime(TextBox1.Text);
con.Open();
[Code]....
conversion failed when converting date and/or time from character string
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May 13, 2010
I am trying to convert a date pulled out from a data reader into the following format 'dd/mm/yyyy'.I have this line of code:
PHP Code:
System.Convert.ToDateTime(dbReaderAppl["date_addedd"].ToString())
But how can i convert the date to this format?
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Mar 1, 2010
I just realize this difference in date conversion: In SQL server, if you run the code below
declare @dateStr varchar(20)
set @dateStr = '1/1/49'
select cast(@dateStr as smalldatetime)
you will get "2049-01-01 00:00:00"
In .NET taking string with value "1/1/49" and it will turn into
1/1/1949 12:00:00 AM
DateTime dateObj;
dateObj = DateTime.Parse("1/1/49");
Label1.Text = dateObj.ToString();
Can anybody tell me why Microsoft did this and what is the best way to prevent user from entering 2 digits year?
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Aug 24, 2010
Im receiving a strange error Error Message: Conversion from string "15/08/2010 22:21:35" to type 'Date' is not valid.
I know this is generally down to cultural date formats etc, however the reason this is strange is it just randomly occured twice in the last week, the website has been running since october and nothing has changed,
The error constantly occured until the IIS was reset and recompilled the site, its been running fine since, however im just trying to figure out what could cause such an error to occur.
I've narrowed it down to a line of code which is:
bktime = DReader.Item("Bktime").ToString
bktime = Year(CDate(bktime)) & "-" & fmt(Month(CDate(bktime)), 2) & "-" & fmt(Day(CDate(bktime)), 2)
Has anyone else encountered this randomly occuring and is there anything i can put in place to prevent this in future?
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May 14, 2013
I have web from in which i have use caleder extender but it display date in form of MM.dd.yyyy
I want it in dd.mm.yyyy i have change its format to dd.mm.yyyy
but while saving the date to data base it is giving error....
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Jul 30, 2010
I am working on application which is deployed in UK environment. But the machine which I am using has US as dateculture.
I always face issues while running application on my machine as some of the functionality which involves date doesnot work and throws exception.
I tried to google on the datetime conversion issue but it did not help.
Can any one please guide me about the changes to be done so that the application works fine in both US and UK environments?
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Sep 28, 2010
I am getting the below error. see my code below and let me know what is wrong.
dim sDatetime as string = startdate & " " &starttime & "AM"
dim dt as Date = CDate(sDatetime)
I am getting the Conversion from string "09/28/10 9.00AM" to type 'Date' is not valid error in this line.
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Jan 27, 2011
I have the following:
[code]....
I keep getting this error:
Message = "The conversion of a char data type to a datetime data type resulted in an out-of-range datetime value."
What i'm trying to do is group by ContentObjectId and then get StartDate that is greater than today.
I'm using entity framwork and MS SQL2008
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Feb 19, 2010
i want to convert date from dd-MM-yyyy to yyyy-MM-dd in vb.net.
[Code]....
but it is giving me in format yyyy-dd-MM
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Jul 10, 2010
i used below code for date time picker validation but it's not working.
Actually I want a date time picker which date dd/mm/yyyy format date. With validation for start and end date. Also for manual entry it should take only no. and for date rest like / or, will be auto formatted.means user should not be able to enter it.
I m using c# .net 2008.
[code]....
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May 7, 2010
I have a web page which generates a .CSV file based on some user input. When this file is downloaded by the user, the file is being automatically converted to .XLS. Any idea how I can prevent this?
For example, I am redirecting the user to the URL of the generated file, like below URL:
http://localhost/reports/Work/aa.csv
But the download window appears to download "aa.xls"!
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Jan 22, 2010
I need to convert the word doc to pdf, ofcourse i did it,But i converted only simple word file that has only strings. But I need to convert the word doc that has images tables with all formatings how Can i achive it.
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Dec 31, 2012
i have used the same coding that u posted in ur site..
but the problem is that it is converting to pdf without the colum header contain means like customer id and name etc is not showing in pdf file..
it is showing the all other row data..
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Oct 1, 2010
I've asp.net 2.0 ajax enabled web site in which I used Ajax update panels in pages. Now I want to convert it into asp.net 3.5 but it gives errors for Ajax tool kit and script manager and update panel used in pages. I don't want to remove ajax functionality from my site, so is there a way to convert them without removing ajax update panels from pages. On my PC I've installed both VS2005 and VS2008.
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Aug 12, 2010
Does anyone konw if it's possible for an asp.net web form to be converted into a PDF by the user, upon clicking a button on their web form?
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Apr 20, 2010
I am totally desparate with the task of Video Conversion, uploading & streaming. I have gone through various articles, posts, blogs and code snipped but couldnt find any full working solution for that.I was advised to work with ffmpeg and i got the functionality [URL]but later i come to know that most asp.net servers (including mine) do not allow to ffmpeg on the server.
Then i look for other solutions, some are saying to convert video files manually and then upload to website (funny hannn). Some are suggesting other site which can store our video and stream from there servers .....So i am stuck now and dont know where to go. I need a complete solution of this problem. Like Users could upload a video file (of any format or at least a good number of choice for upload file format), then they click an upload button and video conversion (e.g. to .flv took place) and the output should be displayed to a user in video player (showing our own logo, not youtube logo....etc.) and thats it.I will definately appreciate all of your comments and guidence.
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Jul 6, 2010
I am using iTextSharp for conversion of aspx to PDF file.
Is there any way I can add Horizontal scroll bar in my PDFPtable or Horizontal scrollbar in my PDF file generated.
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Jan 21, 2013
My web app is running perfectly in asp vb.net
but, on server when i select date and click on submit button
it gives me error like "Conversion from string "31/12/2013" to type 'Date' is not valid."
(i use jqery calender control and all variables and in database its type is "Datetime")
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Mar 14, 2011
I have a window that has 3 dropdownlist controls and a textbox with a Calendar Extender associated to it.
I have the following on my pageload event so when the Page loads the current Date is put in the date textbox:
[Code]....
I can change the date fine but when I select a value from one of the other dropdownlist controls it puts the date back to today's date...The only place I am setting the Date to the current date is in the pageload event...
how can I get it to keep the date to what I change it to after I select a new value from one of the dropdown lists?
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Feb 21, 2011
i already defined culture too in page. but still it's showing enter valid date
my markup
[Code]....
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Mar 16, 2011
How do i do implement this? i Wanna search records based on date!
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Jan 24, 2011
I'm using a basic date picker control in a gridview and using an sqldatasource, I don't get an error but the date selected is not saved only null is saved. why that might happen or make any suggestions on what I might try to correct this?
[Code]....
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Jun 15, 2010
I have a formview. Inside, there is a textbox where user can input a date(txtAccepDt). Then the user will choose one item from a radiobutton list which has values like 60 days, 90 days and 150 days. If the user select the 60 days I need to add that to the Accept date and show it in a abel(lblShowFrstOp). Same will apply with other two day
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