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Item Type: NewsGroup Date Entered: 1/19/2005 3:16:42 PM Date Modified: Subscribers: 0 Subscribe Alert
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chicagonovice
Asp.Net User
Setting custom property on page at design time1/19/2005 3:16:42 PM

0/0

I've created a class which inherits from System.Web.UI.Page which in turn is inherited by all my pages. In my class I have a property that I can set programmatically at run time but which I can't seem to set at design time. I'm not sure what I'm missing and all the references I can find refer to setting up controls, not a page; and I think that they act rather differently.

If you could give me a hint or point me in the direction of a good article I'd be very grateful.


Thanks
webbes
Asp.Net User
Re: Setting custom property on page at design time1/19/2005 3:34:38 PM

0/0

What language? C# VB ....
chicagonovice
Asp.Net User
Re: Setting custom property on page at design time1/19/2005 5:23:05 PM

0/0

VB. But does it matter?
webbes
Asp.Net User
Re: Setting custom property on page at design time1/19/2005 10:10:58 PM

0/0

how do you set the property?

like this: 


Public MyProperty as String

or like this: 


private _myProperty as String





Public Property MyProperty() As String


    Get


        Return _myProperty


    End Get


    Protected Set(ByVal value As String)


        _myProperty = value


    End Set


End Property


the first won't work in designer the second will

cheers,
Wes

P.S. giving an example is much easier if you know which language someone's using!
chicagonovice
Asp.Net User
Re: Setting custom property on page at design time1/19/2005 10:27:38 PM

0/0

Thanks for the reply. I'm setting it like the second example: 



    Private _ScrollPersistence As ScrollOptions





    Public Property ScrollPersistence() As ScrollOptions


        Get


            If ScrollPersistence = Nothing Then


                Return ScrollOptions.PostbackPersistence


            Else


                Return Me._ScrollPersistence


            End If


        End Get


        Set(ByVal Value As ScrollOptions)


            Me._ScrollPersistence = Value


        End Set


    End Property


I'll reiterate that this is a property in a class inherited from System.Web.UI.Page. Does this make any difference to how this works (compared to a web control).
webbes
Asp.Net User
Re: Setting custom property on page at design time1/20/2005 8:39:32 AM

0/0

I got to check my books to be sure, but as far as I know the Page inherits from the System.Web.UI.Control so there shouldn't be a difference. But I've found one mistake. You've forgotten the underscore in: 
If _ScrollPersistence = Nothing Then

but this might be a copy/paste error.

Ehm... if you need a ScrollControl I got one that needs testing but should work. Maintains scroll on the page or on any element on the page ... so please let me know.

Cheers,
Wes
AndrewSeven
Asp.Net User
Re: Setting custom property on page at design time1/23/2005 3:39:44 AM

0/0

Do you mean you want to set it in html like a control tag's properties?
ChicagoNovice
Asp.Net User
Re: Setting custom property on page at design time6/14/2005 4:12:55 PM

0/0

No - I mean I want to see it in the properties window like pageLayout or snapToGrid
webbes
Asp.Net User
Betreft: Re: Setting custom property on page at design time6/15/2005 7:59:55 AM

0/0

Now we are getting there,

Search for the System.ComponentModel class and you'll find your answer and a lot more info....

http://www.c-sharpcorner.com/Code/2003/May/ReusableComponents.asp you'll find a simple example here

Cheers,
Wes
ChicagoNovice
Asp.Net User
Re: Betreft: Re: Setting custom property on page at design time6/15/2005 1:04:09 PM

0/0

I've built components before and added my own properties without a problem, however I want to add properties to my custom page class and have these appear in the properties window.  Unless I'm missing something elementary this is a different proposition.
superconsultant
Asp.Net User
Re: Betreft: Re: Setting custom property on page at design time6/16/2005 6:51:18 PM

0/0

I think your problem is you inherit from System.Web.UI.Page instead of  System.Web.UI.WebControls.WebControl.
ChicagoNovice
Asp.Net User
Re: Betreft: Re: Setting custom property on page at design time6/16/2005 8:16:47 PM

0/0

Surely if I'm trying to create a page subclass then I need to inherit from Page and not WebControl.  If I inherit from WebControl then I'm going to lose things like IsPostBack and a host of other necessary items.
superconsultant
Asp.Net User
Re: Betreft: Re: Setting custom property on page at design time6/16/2005 10:15:58 PM

0/0

All you are saying is true. But thing like being able to edit WebControl properties at design time in Properties Window require control to be inherited from System.Web.UI.WebControls.WebControl.
ChicagoNovice
Asp.Net User
Re: Betreft: Re: Setting custom property on page at design time6/20/2005 1:10:54 PM

0/0

So the short answer is that I can't add properties to a page that can be seen in the properties window at design-time?  Surprise [:O]
superconsultant
Asp.Net User
Re: Betreft: Re: Setting custom property on page at design time6/20/2005 3:15:24 PM

0/0

If you don't inherit from WebControl,  No.
ChicagoNovice
Asp.Net User
Re: Betreft: Re: Setting custom property on page at design time6/20/2005 6:02:27 PM

0/0

And if I do inherit from WebControl I can't use my class as a page?  Just want to make sure I'm clear.
mw:17:61
Asp.Net User
Re: Setting custom property on page at design time6/21/2005 1:03:09 PM

0/0

Setting  [non default] value for property means that samewhere in the code at run time will be an assignment statement. When you are talking about design time initialization perhaps you think of something that can be changed without re-compiling the whole solution. than you may put assignment into <script runat=server...>  block, not in code behind.

<%@Page ..
<script runat=server...

 MyProperty = aValue;

...

Are you talking about this? or you want to see the name of the property in property browser window

+&up;
ChicagoNovice
Asp.Net User
Re: Setting custom property on page at design time6/21/2005 1:38:03 PM

0/0

I was talking about seeing the property in the property browser window so that the developers for whom I've developed the page don't need to know in advance of the property; they will just see it in the property browser and be able to set it.
18 Items, 1 Pages 1 |< << Go >> >|


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