Hi All,
Recently I changed a .net 4.0 wpf project to .net 3.5 for some reasons. It works for .Net 4.0. After I compile it successfully for .Net 3.5 I get an error which is "'/MyProject;component/Themes/ImageButton.xaml' value cannot be assigned to property 'Source' of object 'System.Windows.ResourceDictionary'." while running this program. My code is :
<Style TargetType="controls:ImageButton">
<Setter Property="Background" Value="Transparent" />
<Setter Property="Padding" Value="3" />
<Setter Property="BorderThickness" Value="1" />
<Setter Property="BorderBrush" Value="Transparent" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="controls:ImageButton">
<Grid>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal" />
<VisualState x:Name="MouseOver">
<Storyboard>
<DoubleAnimation Duration="0" Storyboard.TargetName="MouseoverImage" Storyboard.TargetProperty="Opacity"
To="1" />
<DoubleAnimation Duration="0" Storyboard.TargetName="NormalImage" Storyboard.TargetProperty="Opacity"
To="0" />
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed">
<Storyboard>
<DoubleAnimation Duration="0" Storyboard.TargetName="PressedImage" Storyboard.TargetProperty="Opacity"
To="1" />
<DoubleAnimation Duration="0" Storyboard.TargetName="NormalImage" Storyboard.TargetProperty="Opacity"
To="0" />
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<Storyboard>
<DoubleAnimation Duration="0" Storyboard.TargetName="DisabledImage" Storyboard.TargetProperty="Opacity"
To="1" />
<DoubleAnimation Duration="0" Storyboard.TargetName="NormalImage" Storyboard.TargetProperty="Opacity"
To="0" />
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="FocusStates">
<VisualState x:Name="Focused">
<Storyboard>
</Storyboard>
</VisualState>
<VisualState x:Name="Unfocused" />
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Border x:Name="Background" Background="{TemplateBinding Background}"
BorderThickness="{TemplateBinding BorderThickness}"
BorderBrush="{TemplateBinding BorderBrush}">
<Grid>
<Image x:Name="NormalImage" Stretch="{TemplateBinding Stretch}" Source="{TemplateBinding NormalImage}" Opacity="1"
/>
<Image x:Name="MouseoverImage" Stretch="{TemplateBinding Stretch}" Source="{TemplateBinding MouseoverImage}" Opacity="0"
/>
<Image x:Name="PressedImage" Stretch="{TemplateBinding Stretch}" Source="{TemplateBinding PressedImage}" Opacity="0"
/>
<Image x:Name="DisabledImage" Stretch="{TemplateBinding Stretch}" Source="{TemplateBinding DisabledImage}" Opacity="0"
/>
</Grid>
</Border>
<ContentPresenter x:Name="contentPresenter" Content="{TemplateBinding Content}"
ContentTemplate="{TemplateBinding ContentTemplate}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
Margin="{TemplateBinding Padding}"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
the behind code is:
public class ImageButton : Button
{
public static readonly DependencyProperty NormalImageProperty = DependencyProperty.Register(
"NormalImage",
typeof(ImageSource),
typeof(ImageButton),
null);
public static readonly DependencyProperty MouseoverImageProperty = DependencyProperty.Register(
"MouseoverImage",
typeof(ImageSource),
typeof(ImageButton),
null);
public static readonly DependencyProperty PressedImageProperty = DependencyProperty.Register(
"PressedImage",
typeof(ImageSource),
typeof(ImageButton),
null);
public static readonly DependencyProperty DisabledImageProperty = DependencyProperty.Register(
"DisabledImage",
typeof(ImageSource),
typeof(ImageButton),
null);
public static readonly DependencyProperty StretchProperty = DependencyProperty.Register(
"Stretch",
typeof(Stretch),
typeof(ImageButton), new PropertyMetadata(Stretch.Uniform));
public Stretch Stretch
{
get { return (Stretch)GetValue(StretchProperty); }
set { SetValue(StretchProperty, value); }
}
public ImageSource NormalImage
{
get { return (ImageSource)GetValue(NormalImageProperty); }
set { SetValue(NormalImageProperty, value); }
}
public ImageSource MouseoverImage
{
get { return (ImageSource)GetValue(MouseoverImageProperty); }
set { SetValue(MouseoverImageProperty, value); }
}
public ImageSource PressedImage
{
get { return (ImageSource)GetValue(PressedImageProperty); }
set { SetValue(PressedImageProperty, value); }
}
public ImageSource DisabledImage
{
get { return (ImageSource)GetValue(DisabledImageProperty); }
set { SetValue(DisabledImageProperty, value); }
}
public ImageButton()
{
DefaultStyleKey = typeof(ImageButton);
}
}
Is there anything wrong? Thanks.