Jay,
You are a king among men sir. You did indeed point me in the right
direction. After some research into the ICustomTypeDescriptor interface, I
came across this article which gave me a working example to learn from.
http://www.codeproject.com/cs/miscct...=100&tid=40951
1&forumid=13899&select=409511#xx409511xx
Thanks again!!
--
**************************************
Andrés Becerra
Pennsylvania, USA
Email not posted due to email stealing A**H***S that poll newsgroups.
**************************************
"Jay B. Harlow [MVP - Outlook]" <Jay_Harlow@email.msn.com> wrote in message
news:#nSXIcWRDHA.3132@tk2msftngp13.phx.gbl...[color=blue]
> Andres,
> I do not have a clean example handy.
>
> I believe you need to use the ICustomTypeDescriptor interface. This
> interface allows you to dynamically return a list of properties for the
> object you are displaying in the Property Grid.
>
> I use ICustomTypeDescriptor to return a list of properties for an object
> proxy, which works. For the categories & Descriptions I believe you will
> need to override the ICustomTypeDescriptor.GetAttributes method.
>
> My concern is there are one or two other interfaces you need. I use
> ICustomTypeDescriptor for some custom data binding to the data grid, I[/color]
have[color=blue]
> a proxy object that I just delegate most of the ICustomTypeDescriptor
> methods to the actual object. (Via TypeDescriptor)
>
> I took my project and put together a very quick form that uses the[/color]
property[color=blue]
> grid and it seems to work, however I do not have attributes, so I'm not[/color]
sure[color=blue]
> about that.
>
> Hopefully this enough to get you headed in the right direction! ;-)
>
> Hope this helps
> Jay
>
> "ANDRES BECERRA" <a.becerra@sap.com> wrote in message
> news:beeigb$sst$1@news1.wdf.sap-ag.de...
> Herfried K. Wagner was kind enough to point me to the PropertyGrid control
>[/color]
http://msdn.microsoft.com/library/en...windowsformspr
opertygridclasstopic.asp[color=blue]
>
> I have found a few samples of how to use the PropertyGrid control and have
> gained a decent understanding of it. But of course, as it usually the[/color]
case,[color=blue]
> my needs go far beyond the simple examples shown in online samples. All[/color]
the[color=blue]
> online samples show how to take a class with already defined properties[/color]
and[color=blue]
> to add metadata attributes. My case is very different.
>
> The basic structure for my classes are:
>
> Class GenericToolObject
> Readonly Property IsContainer
> Readonly Property Enabled
> Readonly Property ShowInToolBox
> ...few others...
> Readonly Property Properties() as ToolObjectProperties
>
> Class ToolObjectProperties
> (basically just a collection class of ToolObjectPropertyInfo objects)
>
> Class ToolObjectPropertyInfo
> Readonly Property Index
> Readonly Property Name
> Read/Write Property Value ****
> Readonly Property Type (as an enumeration type)
> ...few others...
>
> Instances of GenericToolObjects and its property definitons are loaded at
> run-time from XSD files. When an object is edited, the property editor[/color]
will[color=blue]
> basically need to display the collection of ToolObjectProperties for the
> GenericToolObject in the PropertyGrid control, showing the
> ToolObjectPropertyValue.DisplayName on the left, and the
> ToolObjectPropertyInfo.Value on the right.
>
> I don't see how adding metadata attributes to my classes will do any good,
> because the information for property category, descriptions, etc comes[/color]
from[color=blue]
> the XSD files which are not loaded until runtime.
>
> Can a PropertyGrid control be controlled to the level I need it such that[/color]
I[color=blue]
> can tweak it at run-time to render the property categories, descriptions,
> etc at run-time without metadata attributes? For an initial prototype I
> basically created my own property editor which renders labels, textboxes,
> combobox, checkboxes, datagrids etc to represent the properties for a
> GenericToolObject instance. The VS.Net PropertyGrid control though is so
> much nicer and more professional looking. I could indeed update my own
> property editor to render better and to support property groups and the
> like, but I am wondering if it would be easier to just use the[/color]
PropertyGrid[color=blue]
> control for this purpose.
>
> Any help would be greatly appreciated and of course I will share the
> solution to this if there is one. I get the feeling that I'm the first to
> delve into this territory and use of the PropertyGrid control.
>
> Thanks,
> Andres
>
> **************************************
> Andrés Becerra
> Pennsylvania, USA
> Email not posted due to email stealing A**H***S that poll newsgroups.
> **************************************
>
>[/color]
