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Masking a bound datetime in FormView C#

Posted on 2011-02-17
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Last Modified: 2013-12-17
Is there a way of changing this:

<%#Bind("DateTime") %> so that what is displayed is either the date dd/mm/yyyy or time hh:mm (no seconds)

I have a JQuery function on other pages which is great but my edit page uses a FormView which blocks the JQuery from seeing the controls inside...see my other question on this:
http://www.experts-exchange.com/Programming/Languages/.NET/ASP.NET/Q_26828054.html
So is there another way of achieving a masked date & time for edit purposes?
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Question by:forsters
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Expert Comment

by:quizwedge
ID: 34922187
I haven't done anything with JQuery, but the following should work

<%# FormatDateTime(Bind("DateTime"), [format]) %>

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You can see different formats at http://www.dotnetspider.com/resources/21593-FormatDateTime-function-VB-NET.aspx

You could also use

<%# CType(Bind("DateTime"), DateTime).ToString([format]) %>

See all or at least a lot of the formats at http://msdn.microsoft.com/en-us/library/8kb3ddd4.aspx
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Author Comment

by:forsters
ID: 34924743
Hi thanks for the reply,

That to me looks like VB code, it's exactly what I want but I need it in C# equivalent.
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Expert Comment

by:quizwedge
ID: 34926205
Sorry, I tend to think in VB. On my mobile phone, so can't do as much but check out http://www.experts-exchange.com/Programming/Languages/C_Sharp/Q_21275009.html and let me know if you need more info.
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Author Comment

by:forsters
ID: 34926461
No worries, just grateful for the help, frustrating how such tiny details can have you stumped for days.

thanks for the link, I found that in google too and thought I was onto something but because i'm trying to format a bound textbox it errored on the Bind.

This is what I tried - I may have just got the syntax a bit messed up?

 <asp:TextBox ID="TxtDeadlineTime" Text='<%#DateTime.Parse(Bind("DeadlineTime").ToString("T")) %>' runat="server"/>

if you can help anymore i'd really appreciate it when you get a chance.

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Expert Comment

by:quizwedge
ID: 34930393
I believe the syntax should be

<asp:TextBox ID="TxtDeadlineTime" Text='<%#DateTime.Parse(Bind("DeadlineTime")).ToString("T") %>' runat="server"/>

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Looks like a misplaced closing parenthesis. I also found the following format that could help

<asp:TextBox ID="TxtDeadlineTime" Text='<%#Bind("WOTime").ToString("hh:mm tt")%>' runat="server"></asp:TextBox>

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Found that at http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/Q_21672043.html For the hh:mm tt part, you'd use the formats found at http://msdn.microsoft.com/en-us/library/8kb3ddd4.aspx
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LVL 14

Expert Comment

by:quizwedge
ID: 34930403
Realized I made a mistake in my second code sample. It should say Bind("DeadlineTime") not Bind("WOTime"). Just the field name and figured you'd probably catch it, but I tried to make it as copy and paste friendly as possible.
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Author Comment

by:forsters
ID: 34932400
Hi thank you I will try both - think I may have tried shifting the parenthesis but I will try again just in case I did something silly (high possibility).
Thanks for this will report back.
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Author Comment

by:forsters
ID: 34941744
D'oh neither work, on the first one I get:

"The name 'Bind' does not exist in the current context"

the second one I get an error:

" A call to Bind was not well formatted.  Please refer to documentation for the correct parameters to Bind"

Any more ideas, it seems such a basic requirement I can't believe there isn't a way of doing it in C#, someone has suggested a way of getting the JQuery code to work so i'll see if that delivers any joy but it would be nice to get both methods working...don't like to let the machines win!
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Accepted Solution

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quizwedge earned 500 total points
ID: 34945301
You're making me actually have to dig in and do some research and testing on this one instead of just going from memory. ;) Looks like it is simple, I just had the wrong syntax for this particular case. The code you're looking for is

<%# Bind("DateTime", "{0:dd/MM/yyyy hh:mm}") %>

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Author Comment

by:forsters
ID: 34950428
Haha always good to know us newbs are making the pros work a little.

Well you'll be chuffed to know that's nailed it thank you very much and for anyone else out there this is what I now have:
<asp:TextBox ID="TxtDeadlineDate" Text='<%# Bind("DeadlineDate", "{0:dd/MM/yyyy}") %>' runat="server"/>
which displays in my textbox as: 12/04/2011
AND
<asp:TextBox ID="TxtDeadlineTime" Text='<%# Bind("DeadlineTime", "{0:hh:mm}") %>' runat="server"/>
which displays in mytextbox as: 12:00

Perfect thank you so much you've been a complete star!
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Author Closing Comment

by:forsters
ID: 34950431
spot on thank you!
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