warning in XAML

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

Hi,

I am compiling and using one of the many samples that come with Vista SDK;
it is called "DataTrigger".

It works fine, but in the XAML pane I get a warning that makes me uneasy
since I don't know why it occurs and if it is important (if it isn't, I guess
it would not show a warning).

This is part of the code:
--------------------------------------------
<Window.Resources>
<c:Places x:Key="PlacesData"/>
--------------------------------------------
the warning is:
--------------------------------------------

Warning 1 The element 'Window.Resources' in namespace
'http://schemas.microsoft.com/winfx/2006/xaml/presentation' has invalid child
element 'Places' in namespace 'clr-namespace:SDKSample;assembly='. List of
possible elements expected: 'ResourceDictionary.MergedDictionaries,
ResourceDictionary.Source, ResourceDictionary.IsReadOnly,
ResourceDictionary.Keys, ResourceDictionary.Values, sgObject, sgValueType,
Point, Size, Vector, Rect, Matrix, Int32Rect, Duration, FontStyle,
FontStretch, FontWeight, KeyTime, RepeatBehavior, Color, PixelFormat,
Matrix3D, Point3D, Point4D, Quaternion, Rect3D, Size3D, Vector3D,
CornerRadius, FigureLength, GridLength, Thickness, DependencyProperty,
sgDispatcherObject, sgDependencyObject, sgFreezable, sgAnimatable,
TextDecoration, TextDecorationCollection, sgTimeline, sgAnimationTimeline,
sgDoubleAnimationBase, DoubleAnimationUsingPath, DoubleAnimation,
DoubleAnimationUsingKeyFrames, sgBooleanAnimationBase,
BooleanAnimationUsingKeyFrames, sgByteAnimationBase, ByteAnimation,
ByteAnimationUsingKeyFrames, sgCharAnimationBase,
CharAnimationUsingKeyFrames, sgColorAnimationBase, ColorAnimation,
ColorAnimationUsingKeyFrames, sgDecimalAnimationBase, DecimalAnimation,
DecimalAnimationUsingKeyFrames, sgInt16AnimationBase, .... C:\Program
Files\Microsoft
SDKs\Windows\v6.0\Samples\WPFSamples\ConnectedData\DataTrigger\CSharp\Window1.xaml 11
 
Hi,

Juan said:
Hi,

I am compiling and using one of the many samples that come with Vista SDK;
it is called "DataTrigger".

It works fine, but in the XAML pane I get a warning that makes me uneasy
since I don't know why it occurs and if it is important (if it isn't, I guess
it would not show a warning).
Click to expand...

The XAML editor is still in quite an early stage. It is not able to
recognize self-defined types (for example, you will not have
intellisense on these types). If the application works fine, you may
safely ignore the warning. The next version of Visual Studio (Orcas,
available as CTP) will fix this.

HTH,
Laurent
 
HelloJuan,

From your description, you're wondering whether the following warning is
serious to your WPF application:
Warning 1 The element 'Window.Resources' in namespace
'http://schemas.microsoft.com/winfx/2006/xaml/presentation' has invalid
child
element 'Places' in namespace 'clr-namespace:SDKSample;assembly='. List of
possible elements expected: 'ResourceDictionary.MergedDictionaries,
<<<<<<<<<<

According to the WPF xaml snippet you provided

--------------------------------------------
<Window.Resources>
<c:Places x:Key="PlacesData"/>
--------------------------------------------

the "Places" is your custom data class, correct? If so, I think the
warning is expected and you do not to worry about it. It is caused by the
XAML schema validation of the VS 2005 .NET 3.0 extension. Currently, the
schema for validating XAML content only contains those built-in
information, if register any custom class/control and add elements of those
custom types in XAML(inside some built-in elements such as Window,
button....), it will report validating warning as you've got.

Actually, such issue is very common for those template based application
such as ASP.NET(in which the aspx tempalte will be validated against
certain xmlschema), and whenever you add some custom webcontrol into aspx
template),since the original built-in ASP.NET control schema hasn't been
updated, IDE will raise some design-time validation error/warning.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead
Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead



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