Vista - Re: Data binding doesn't work for Property Tag syntax ?

01-10-2006

Got it. Thnks.
--
Mikhail

"Nick Kramer [MSFT]" wrote:

> You didn't write the same thing -- the same set of objects expressed in
> property tag syntax is
>
> <Image>
> <Image.Source>
> <Binding .../>
> </Image.Source>
> </Image>
>
> In the code you wrote is to separate objects, Image and BitmapImage. I'm
> not positive but what I think you're seeing is BitmapImage.UriSource is
> null, because the {Binding} has no data context, because unlike Image,
> BitmapImage is not part of the logical tree and doesn't get inheritance.
> fyi, data binding generates some useful debug output to help cases like
> this.
>
> -Nick Kramer [MSFT]
> http://blogs.msdn.com/nickkramer
>
> ---
> This posting is provided "AS IS" with no warranties, and confers no rights.
> Use of included script samples are subject to the terms specified at
> http://www.microsoft.com/info/cpyright.htm
>
>
> "Mikhail" <Mikhail@discussions.microsoft.com> wrote in message
> news

CD4E8E8-834A-40F3-A79A-EDFBB55B7B32@microsoft.com...
> > This code works OK:
> >
> > <Image Source="{Binding Source}"/>
> >
> > Where Source property returns full pathname.
> >
> > This code doesn't:
> >
> > <Image>
> > <Image.Source>
> > < BitmapImage UriSource="{Binding URISource}"/>
> > </Image.Source>
> > </Image>
> >
> > Where URISource returns proper URI constructed from the same full
> > pathname.
> >
> > I have exception with message "Property 'UriSource' or property
> > 'StreamSource' must be set."
> >
> > Any idea?
> >
> > --
> > Mikhail
>
>
>

01-10-2006	#1 (permalink)
Mikhail n/a posts	Re: Data binding doesn't work for Property Tag syntax ? Got it. Thnks. -- Mikhail "Nick Kramer [MSFT]" wrote: > You didn't write the same thing -- the same set of objects expressed in > property tag syntax is > > <Image> > <Image.Source> > <Binding .../> > </Image.Source> > </Image> > > In the code you wrote is to separate objects, Image and BitmapImage. I'm > not positive but what I think you're seeing is BitmapImage.UriSource is > null, because the {Binding} has no data context, because unlike Image, > BitmapImage is not part of the logical tree and doesn't get inheritance. > fyi, data binding generates some useful debug output to help cases like > this. > > -Nick Kramer [MSFT] > http://blogs.msdn.com/nickkramer > > --- > This posting is provided "AS IS" with no warranties, and confers no rights. > Use of included script samples are subject to the terms specified at > http://www.microsoft.com/info/cpyright.htm > > > "Mikhail" <Mikhail@discussions.microsoft.com> wrote in message > newsCD4E8E8-834A-40F3-A79A-EDFBB55B7B32@microsoft.com... > > This code works OK: > > > > <Image Source="{Binding Source}"/> > > > > Where Source property returns full pathname. > > > > This code doesn't: > > > > <Image> > > <Image.Source> > > < BitmapImage UriSource="{Binding URISource}"/> > > </Image.Source> > > </Image> > > > > Where URISource returns proper URI constructed from the same full > > pathname. > > > > I have exception with message "Property 'UriSource' or property > > 'StreamSource' must be set." > > > > Any idea? > > > > -- > > Mikhail > > >
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