User control confusion - ASP.NET Discussion Boards

Federico Orlandini11-Dec-07 21:46

11-Dec-07 21:46

Hi all,

I have a FormView, which retrieve data from an ObjectDataSource.
In the ItemTemplate of the FormView I have a label which shows a datetime field fo the ObjectDataSource. The Label's Text propery is binded using the following Bind() directive:

Text='<%# Bind("BeginDate", "{0 Big Grin | :-D

/M/yyyy}") %>'

In the EditTemplate, I have a TextBox which is binded to the BeginDate field, using the following directive:

Text='<%# Bind("BeginDate", "{0 Big Grin | :-D

/M/yyyy}") %>'

As you can see, I want to use a d/M/yyyy data format.

In the ReadOnly state of the form I can see that the date is correctly showed (for example 25/12/2007). When I press the "Edit" button and the formview switch to the Edit state, the date is still showed in a correct format d/M/yyyy.
The issue is the following: when I press the "Update" button, I got a Parsing Exception: the data in the textbox is not a valid DateTime format. If I manually change the data from d/M/yyyy (25/12/2005) in M/d/yyyy (12/25/2007) the update process works!
It seems that when the FormView render the EditTemplate, it use a datetime format d/M/yyyy but when it parse the datetime, it uses the M/d/yyyy datetime format. Confused | :confused:

I checked the CultureInfo and UICultureInfo and it was set to it-IT. Confused | :confused:

I set the CultureInfo for the CurrentThread to it-IT, but it didn't solve the problem. Confused | :confused:

Can you help me?

Thanks
Federico

Re: Updating a DateTime field in a FormView

Sam Xavier13-Dec-07 22:51

Sam Xavier

13-Dec-07 22:51

Hi Federico,

I have been able to recreate the issue. I would suggest you to please check if the backend server supports the particular date time format.
In my case, I have been able to change the date time format on the SQL Server and have been able to workaround this..

Best Regards,
Sam Xavier
www.componentone.com

Re: Updating a DateTime field in a FormView

Federico Orlandini14-Dec-07 0:47

Federico Orlandini

14-Dec-07 0:47

Hi Sam,

thanks for your help.
Actually I'm developing my code using the SQL 2005 Express embedded in the VS2005.

During my tests, I saw that the parsing error exception was throw before the execution of the UPDATE query. It seems that it's .NET that wrong doing the parsing of the datetime, because it uses a english date time format.

When I'll move my code on a SQL 2005 server, I wish that the issue will vanish. Smile | :)

Thanks for your help.
Regards.
Federico

Re: Updating a DateTime field in a FormView

Federico Orlandini15-Dec-07 5:39

Federico Orlandini

15-Dec-07 5:39

Hi all,

about the issue that I showed in my previous post: I found the solution....IT'S A BUG!
Please take a look to the following page:
http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=105016

It's a well-know problem.... Dead | X|

Bye
Federico

How to include ".inc" files in .aspx pages?

clife53711-Dec-07 21:36

clife537

11-Dec-07 21:36

Hi All,

I have a problem, i need to include ".inc" file in to my ".aspx" file as i have some code in the inc file which i have to re-use. can any one suggest me how to do this,

I need to include the file to access the database details which are in the ".inc" file.

Thanks in Advance.

chandu

chandu

Re: How to include ".inc" files in .aspx pages?

pmarfleet11-Dec-07 21:50

pmarfleet

11-Dec-07 21:50

<!--#include file="myfile.aspx"-->

I wouldn't advise you to use includes though. They were useful in the days of classic ASP as a means of reusing script code. However the object-orientated nature of .NET means there are more sophisticated means of reusing code e.g. Master Pages, User Controls etc. Anyway, database connection details should be stored in your web.config file. There is a specific <connectionstrings/> section for them.

Paul Marfleet

"No, his mind is not for rent
To any God or government"
Tom Sawyer - Rush

Re: How to include ".inc" files in .aspx pages?

Christian Graus11-Dec-07 22:33

Christian Graus

11-Dec-07 22:33

Your database code should be in a class, or in a dll. It sure should not be included with .inc files.

Christian Graus - Microsoft MVP - C++

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

User control confusion

Sandeep Akhare11-Dec-07 20:38

Sandeep Akhare

11-Dec-07 20:38

Hi All,
I struck against the meaning of user control. Please i need your comments for this issue
As per my knowledge we use user control when there is reusable logic and UI present in the web application.
But here I am allocated to a new project where they are using one user control for each page just to simplify the amount of logic that is on the page.
Means they have almost n number of user controls for n number of pages. Is it proper way? Do we need to have concern for performance issue

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

Re: User control confusion

Michael Sync11-Dec-07 21:08

Michael Sync

11-Dec-07 21:08

If you are using ASP.NET 1x, the answer is Yes. It should not be defined to have one user control for one page. There might be some pages that share the same user control. And also, there might be some pages that have more than one user control.

playing with bugs ) wrote:
As per my knowledge we use user control when there is reusable logic and UI present in the web application.

plus, the reason why we used to use the user control is that we want to create the basepage for website themes.

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

Re: User control confusion

Sandeep Akhare11-Dec-07 21:17

Sandeep Akhare

11-Dec-07 21:17

Michael,
Thanks for giving your comments

Michael Sync wrote:
If you are using ASP.NET 1x, the answer is Yes.

I am using ASP.NET 2.0. What makes the difference between 2 ?

Michael Sync wrote:
plus, the reason why we used to use the user control is that we want to create the basepage for website themes.

We can use master page for this.

So what should we conclude ?

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

Re: User control confusion

Michael Sync11-Dec-07 22:21

Michael Sync

11-Dec-07 22:21

playing with bugs ) wrote:
I am using ASP.NET 2.0. What makes the difference between 2 ?

If you are using ASP.NET 2.0, one user control for one page won't be needed for you anymore.

For performance, I don't think that there is any differences between the page and user control..

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

Re: User control confusion

Sandeep Akhare11-Dec-07 22:38

Sandeep Akhare

11-Dec-07 22:38

Michael
but if i would have using ASP.NET 1.x then why i can use one user control for 1 page ? Means what makes this difference in 2.0 ..
i don't know my question is making any sense or not ? Poke tongue | ;-P

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

Re: User control confusion

Michael Sync11-Dec-07 23:36

Michael Sync

11-Dec-07 23:36

When we were using ASP.NET 1x, there is no build-in master page. So, we had to create the base class for that and added the user control dynamically to the page.. but when we moved to ASP.NET 2.0, we don't need that concept anymore..

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

Re: User control confusion

Sandeep Akhare12-Dec-07 0:08

Sandeep Akhare

12-Dec-07 0:08

Hmm
Thanks Buddy Smile | :)

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

Re: User control confusion

N a v a n e e t h11-Dec-07 21:59

N a v a n e e t h

11-Dec-07 21:59

playing with bugs ) wrote:
As per my knowledge we use user control when there is reusable logic and UI present in the web application.

Are you speaking about ascx files ? I think master pages are a good replacement for this.

playing with bugs ) wrote:
But here I am allocated to a new project where they are using one user control for each page just to simplify the amount of logic that is on the page.

I don't find any problem in in this design. There might be some reason that they chose this method. May be the user controls was developed by one programmer, and ASPX pages are done by other. So the person who created ASPX pages, don't need to understand what's happening inside the user control. I think it's for easy maintainability.

You need to identify, why they used such a method. I don't think that it will make performance problems.

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia

My Website | Ask smart questions

Re: User control confusion

Sandeep Akhare11-Dec-07 22:11

Sandeep Akhare

11-Dec-07 22:11

Navaneeth,
thanks for your comments

N a v a n e e t h wrote:
Are you speaking about ascx files ?

Yes i am saying ASCX files.

N a v a n e e t h wrote:
I think it's for easy maintainability

That's what i wanted (specific answer)

What will you say to this sentence.Please give your comments
The user controls are used to simplify the amount of logic that is on the page

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

Re: User control confusion

N a v a n e e t h11-Dec-07 22:17

N a v a n e e t h

11-Dec-07 22:17

playing with bugs ) wrote:
The user controls are used to simplify the amount of logic that is on the page

Well, I think when you use user controls, your logic is not getting simplified. But your code is getting simplified and gives easy readability. Commonly used things can be put in one centralized place.

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia

My Website | Ask smart questions

Re: User control confusion

Sandeep Akhare11-Dec-07 22:33

Sandeep Akhare

11-Dec-07 22:33

Well then here my question came again as you said

N a v a n e e t h wrote:
Commonly used things can be put in one centralized place

But that user control is going to use by one page and that also single time so there could not be any common things.It contains logic for populating the page(UI) and getting data from UI to data container

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

Re: User control confusion

N a v a n e e t h11-Dec-07 22:39

N a v a n e e t h

11-Dec-07 22:39

No idea exactly why the used this method. May be it's their style of coding. But I am sure that it won't make any performance difference.

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia

My Website | Ask smart questions

Re: User control confusion

Sandeep Akhare11-Dec-07 22:44

Sandeep Akhare

11-Dec-07 22:44

OK Navaneeth
Thank you very much for your valuable comments Smile | :)

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

Is this possible: Using ObjectDataSource and adding columns maually to a GridView

Rohde11-Dec-07 20:29

Rohde

11-Dec-07 20:29

I have a GridView on a page, and I know some of the properties I want to show at design time, but the rest I only know at run-time. So I'm thinking of binding to an ObjectDataSource for the properties I know at design time, and declaratively add the needed BoundFields to the GridView (then I can also use paging).

For the stuff I only know at run-time I'm thinking of adding the columns at the page's InitializeComponent(), and adding the data itself at the GridView's RowDataBound event.

Is this possible? Any good ideas, comments?

"When you have made evil the means of survival, do not expect men to remain good. Do not expect them to stay moral and lose their lives for the purpose of becoming the fodder of the immoral. Do not expect them to produce, when production is punished and looting rewarded. Do not ask, `Who is destroying the world?' You are."

-Atlas Shrugged, Ayn Rand

how i can check wether a value is there or not in a stored procedure

jagan12311-Dec-07 20:17

jagan123

11-Dec-07 20:17

iam sending a null value to the stored procedure .how i can check in if loop of the stored procedure wheter the send value is null or something

Re: how i can check wether a value is there or not in a stored procedure

YeHtut11-Dec-07 20:19

YeHtut

11-Dec-07 20:19