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CompareValidator using TextField with CalendarExtender with format dd/MM/yyyy HH:mm

Posted on 2008-10-29
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Last Modified: 2008-12-09
Our project has a standard date format of dd/MM/yyyy HH:mm that I can not change.

I want to allow users to enter in a date into a textbox using the calendar extender.

Furthermore, we need to prevent them from selecting future dates.

Unfortunately the attached code does not work.

Suggestions / solutions?
<asp:CompareValidator 
  ID="CompareValidator1" 
  runat="server" 
  ControlToValidate="textBox1" 
  ErrorMessage="Can not pick future dates" 
  Operator="LessThanEqual" 
  Type="Date">
</asp:CompareValidator>

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Question by:Jonathan_Bride
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6 Comments
 
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Expert Comment

by:prairiedog
ID: 22841893
It is related to the current culture settings because the date format is determined by the culture information your application is using. You can change the culture information on a specific page by adding the culture information in the Page directive:
<%@ Page culture="here" %>
dd/MM/yyyy HH:mm looks like "en-GB", is it right? You can change try this:
<%@ Page culture="en-GB" %>
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Author Comment

by:Jonathan_Bride
ID: 22845978
Hi,

en-GB is unfortunately for me "31/10/2008 06:08:28". I need it without the last 28 / ss

http://asp.infoz.hk/App/CultureList.aspx

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LVL 22

Expert Comment

by:prairiedog
ID: 22850076
>>>en-GB is unfortunately for me "31/10/2008 06:08:28". I need it without the last 28 / ss

What do you get the value displayed? In the text box after user selects a date from the calendar?
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Author Comment

by:Jonathan_Bride
ID: 22852183
the display from user selection is (as per standard format)

dd/MM/yyyy HH:mm

Eng-Gb is

dd/MM/yyyyy HH:mm:ss

minor difference but it does not work as far as i am aware
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LVL 22

Expert Comment

by:prairiedog
ID: 22852983
What if you set your CanlendarExtender's Format property to "dd/MM/yyyy HH:mm:ss", will that work for you?
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Accepted Solution

by:
Jonathan_Bride earned 0 total points
ID: 22863574
No, it can not have ":ss" at the end as the code behind in this solution automatically changes any date to dd/MM/yyyy HH:mm format

Found this regular expression that apparently I can use for custom validation

^(([0-2][1-9])|([1-3][0-1]))[\\.\\-\\/](([0][1-9])|([1][0-2]))[\\.\\-\\/](([2-3][0-9][0-9][0-9])) *(([0-9])|([0-1][0-9])|([2][0-3])):(([0-5][0-9]))$

If it does not, I will go with server side validation, instead of client-side.
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