|
List Info
Thread: Adding properties to child controls?
|
|
| Adding properties to child controls? |
|
2006-07-17 19:52:52 |
In the 1.1 world, you'd create a component w/a property
decorated w/the
"ProvidePropertyAttribute", and you might also
implement the
IExtenderProvider interface. Probably it's similar in the
2.0 world
(which I assume you're in, as I don't recognize the
TableLayoutPanel
type). Hopefully a troll through the help docs and/or
google will put
you on the scent.
HTH,
-Roy
-----Original Message-----
From: Discussion of advanced .NET topics.
[mailto:ADVANCED-DOTNET DISCUSS.DEVELOP.COM] On Behalf Of Gregory
Miley
Sent: Monday, July 17, 2006 12:40 PM
To: ADVANCED-DOTNETDISCUSS.DEVELOP.COM
Subject: [ADVANCED-DOTNET] Adding properties to child
controls?
I'm looking for some information on adding properties to
child controls
similar to the way that TableLayoutPanel adds Cell, Column,
Row,
ColumnSpan, and RowSpan to its child Controls. I would
assume this is
possible since it is being done already.(?)
Basically, what I want is to add a bool property to controls
added to a
form (the forms will be derived from a custom base form
class). This
property will be used to determine if the control has a
user-defined
default. I figured this would be a good way to handle it
since a lot of
our forms use classes that dynamically generate their
content based on
data in SQL tables, yet there can still be standard windows
forms
controls mixed in that may or may not qualify as having user
definable
default values.
I've tried a couple hacky ways to emulate it but end up on
the reverse
end of the success stick. Anyone have any suggestions as to
how I could
do this?
Thanks for any information.
Greg
===================================
This list is hosted by DevelopMentor(r) http://www.develop.com
View archives and manage your subscription(s) at
http://discuss.develop.com
===================================
This list is hosted by DevelopMentorŪ http://www.develop.com
View archives and manage your subscription(s) at http://discuss.develop.com
|
|
| Adding properties to child controls? |
|
2006-07-17 19:59:40 |
I've been through google a few times ^_^. Still on it
actually.
And, yes, 2.0 - I'm not creating a control, I want to add,
I guess it
would be best described as a, pseudo-property. I'm not
quite sure how
.Net does it with the control I mentioned, but it would seem
that it
actually stores the property information in the
TableLayoutPanel control
and creates a property that appears to be part of the
controls in the
TableLayoutPanel.Controls collection. For example, you
create a
TableLayoutPanel instance on a form, then add a TextBox
(named text1)
control to the TableLayoutPanel, you can now access
text1.Cell or
text1.Column, etc... Even though that control never has
those properties
on it, once it becomes a member of the
TableLayoutPanel.Controls
collection it does.
Greg
-----Original Message-----
From: Discussion of advanced .NET topics.
[mailto:ADVANCED-DOTNETDISCUSS.DEVELOP.COM] On Behalf Of Pardee,
Roy
Sent: Monday, July 17, 2006 15:53
To: ADVANCED-DOTNETDISCUSS.DEVELOP.COM
Subject: Re: Adding properties to child controls?
In the 1.1 world, you'd create a component w/a property
decorated w/the
"ProvidePropertyAttribute", and you might also
implement the
IExtenderProvider interface. Probably it's similar in the
2.0 world
(which I assume you're in, as I don't recognize the
TableLayoutPanel
type). Hopefully a troll through the help docs and/or
google will put
you on the scent.
HTH,
-Roy
-----Original Message-----
From: Discussion of advanced .NET topics.
[mailto:ADVANCED-DOTNETDISCUSS.DEVELOP.COM] On Behalf Of Gregory
Miley
Sent: Monday, July 17, 2006 12:40 PM
To: ADVANCED-DOTNETDISCUSS.DEVELOP.COM
Subject: [ADVANCED-DOTNET] Adding properties to child
controls?
I'm looking for some information on adding properties to
child controls
similar to the way that TableLayoutPanel adds Cell, Column,
Row,
ColumnSpan, and RowSpan to its child Controls. I would
assume this is
possible since it is being done already.(?)
Basically, what I want is to add a bool property to controls
added to a
form (the forms will be derived from a custom base form
class). This
property will be used to determine if the control has a
user-defined
default. I figured this would be a good way to handle it
since a lot of
our forms use classes that dynamically generate their
content based on
data in SQL tables, yet there can still be standard windows
forms
controls mixed in that may or may not qualify as having user
definable
default values.
I've tried a couple hacky ways to emulate it but end up on
the reverse
end of the success stick. Anyone have any suggestions as to
how I could
do this?
Thanks for any information.
Greg
===================================
This list is hosted by DevelopMentor(r) http://www.develop.com
View archives and manage your subscription(s) at
http://discuss.develop.com
===================================
This list is hosted by DevelopMentor(r) http://www.develop.com
View archives and manage your subscription(s) at
http://discuss.develop.com
===================================
This list is hosted by DevelopMentorŪ http://www.develop.com
View archives and manage your subscription(s) at http://discuss.develop.com
|
|
| Adding properties to child controls? |
|
2006-07-17 21:14:54 |
On 7/17/06, Gregory Miley <GregoryMleetc.com> wrote:
> I've been through google a few times ^_^. Still on it
actually.
>
> And, yes, 2.0 - I'm not creating a control, I want to
add, I guess it
> would be best described as a, pseudo-property. I'm not
quite sure how
> .Net does it with the control I mentioned, but it would
seem that it
> actually stores the property information in the
TableLayoutPanel control
> and creates a property that appears to be part of the
controls in the
> TableLayoutPanel.Controls collection. For example, you
create a
> TableLayoutPanel instance on a form, then add a TextBox
(named text1)
> control to the TableLayoutPanel, you can now access
text1.Cell or
> text1.Column, etc... Even though that control never has
those properties
> on it, once it becomes a member of the
TableLayoutPanel.Controls
> collection it does.
>
> Greg
>
> -----Original Message-----
> From: Discussion of advanced .NET topics.
> [mailto:ADVANCED-DOTNETDISCUSS.DEVELOP.COM] On
Behalf Of Pardee, Roy
> Sent: Monday, July 17, 2006 15:53
> To: ADVANCED-DOTNETDISCUSS.DEVELOP.COM
> Subject: Re: Adding properties to child controls?
>
> In the 1.1 world, you'd create a component w/a
property decorated w/the
> "ProvidePropertyAttribute", and you might
also implement the
> IExtenderProvider interface. Probably it's similar in
the 2.0 world
> (which I assume you're in, as I don't recognize the
TableLayoutPanel
> type). Hopefully a troll through the help docs and/or
google will put
> you on the scent.
>
> HTH,
>
> -Roy
>
> -----Original Message-----
> From: Discussion of advanced .NET topics.
> [mailto:ADVANCED-DOTNETDISCUSS.DEVELOP.COM] On
Behalf Of Gregory Miley
> Sent: Monday, July 17, 2006 12:40 PM
> To: ADVANCED-DOTNETDISCUSS.DEVELOP.COM
> Subject: [ADVANCED-DOTNET] Adding properties to child
controls?
>
> I'm looking for some information on adding properties
to child controls
> similar to the way that TableLayoutPanel adds Cell,
Column, Row,
> ColumnSpan, and RowSpan to its child Controls. I would
assume this is
> possible since it is being done already.(?)
>
> Basically, what I want is to add a bool property to
controls added to a
> form (the forms will be derived from a custom base form
class). This
> property will be used to determine if the control has a
user-defined
> default. I figured this would be a good way to handle
it since a lot of
> our forms use classes that dynamically generate their
content based on
> data in SQL tables, yet there can still be standard
windows forms
> controls mixed in that may or may not qualify as having
user definable
> default values.
>
It does that exactly as Roy explained - via
IExtenderProvider and the
ProviderProperty attribute. Make that base custom form
implement
IExtenderProvider interface, and have a hashtable or
whatever to
persist the pseudo properties (DefaultValue or whatever you
name it).
Cheers,
Stoyan
===================================
This list is hosted by DevelopMentorŪ http://www.develop.com
View archives and manage your subscription(s) at http://discuss.develop.com
|
|
[1-3]
|
|