Span in Contentpresenter not working properly
I have stumbled upon a small problem and I'm not sure how to avoid it or work around it and whether it's a bug or a "feature".
When rendering a span with text in it, it seems to be disconnected from the logical tree when using a content presenter to render it. It does not bubble IsMouseOver (or probably any event) and Hyperlinks inside the span also won't fire any associated code.
<ContentPresenter>
<ContentPresenter.Content>
<!--Normally this would be a binding, but it behaves the same.-->
<Span>
Test <Hyperlink Click="Hyperlink_OnClick">Testlink</Hyperlink>
</Span>
</ContentPresenter.Content>
</ContentPresenter>
Inspecting the visual tree with Snoop indeed shows that the TextBlock used to display the span does not receive IsMouseOver-Events from it's inline elements while they themselves do indeed register them correctly (when you expand the inline property and navigate to them; they just refuse to pass them on). Also when attaching a message box to the click handler, nothing happens when you click on the link.
<TextBlock Grid.Row="1">
<Span>
Test <Hyperlink Click="Hyperlink_OnClick">Testlink</Hyperlink>
</Span>
</TextBlock>
This one on the other hand works as expected. The IsMouseOver works fine and even the Link works.
The premise of my problem is, that I want to dynamically bind the text of the TextBlock to something. But I can't bind the text-property to a span directly so I'm using a content presenter which does the job (but is broken). Is this a bug or some feature/implication that I'm unaware of? And is there another way to bind a span to something to display it with working event handling & hyperlink clicks?
wpf
edited Dec 27 '18 at 15:24
mm8
81.4k81831
asked Dec 27 '18 at 14:53
CShark
8091121
add a comment |
I have stumbled upon a small problem and I'm not sure how to avoid it or work around it and whether it's a bug or a "feature".
When rendering a span with text in it, it seems to be disconnected from the logical tree when using a content presenter to render it. It does not bubble IsMouseOver (or probably any event) and Hyperlinks inside the span also won't fire any associated code.
<ContentPresenter>
<ContentPresenter.Content>
<!--Normally this would be a binding, but it behaves the same.-->
<Span>
Test <Hyperlink Click="Hyperlink_OnClick">Testlink</Hyperlink>
</Span>
</ContentPresenter.Content>
</ContentPresenter>
Inspecting the visual tree with Snoop indeed shows that the TextBlock used to display the span does not receive IsMouseOver-Events from it's inline elements while they themselves do indeed register them correctly (when you expand the inline property and navigate to them; they just refuse to pass them on). Also when attaching a message box to the click handler, nothing happens when you click on the link.
<TextBlock Grid.Row="1">
<Span>
Test <Hyperlink Click="Hyperlink_OnClick">Testlink</Hyperlink>
</Span>
</TextBlock>
This one on the other hand works as expected. The IsMouseOver works fine and even the Link works.
The premise of my problem is, that I want to dynamically bind the text of the TextBlock to something. But I can't bind the text-property to a span directly so I'm using a content presenter which does the job (but is broken). Is this a bug or some feature/implication that I'm unaware of? And is there another way to bind a span to something to display it with working event handling & hyperlink clicks?
wpf
edited Dec 27 '18 at 15:24
mm8
81.4k81831
asked Dec 27 '18 at 14:53
CShark
8091121
add a comment |
I have stumbled upon a small problem and I'm not sure how to avoid it or work around it and whether it's a bug or a "feature".
When rendering a span with text in it, it seems to be disconnected from the logical tree when using a content presenter to render it. It does not bubble IsMouseOver (or probably any event) and Hyperlinks inside the span also won't fire any associated code.
<ContentPresenter>
<ContentPresenter.Content>
<!--Normally this would be a binding, but it behaves the same.-->
<Span>
Test <Hyperlink Click="Hyperlink_OnClick">Testlink</Hyperlink>
</Span>
</ContentPresenter.Content>
</ContentPresenter>
Inspecting the visual tree with Snoop indeed shows that the TextBlock used to display the span does not receive IsMouseOver-Events from it's inline elements while they themselves do indeed register them correctly (when you expand the inline property and navigate to them; they just refuse to pass them on). Also when attaching a message box to the click handler, nothing happens when you click on the link.
<TextBlock Grid.Row="1">
<Span>
Test <Hyperlink Click="Hyperlink_OnClick">Testlink</Hyperlink>
</Span>
</TextBlock>
This one on the other hand works as expected. The IsMouseOver works fine and even the Link works.
The premise of my problem is, that I want to dynamically bind the text of the TextBlock to something. But I can't bind the text-property to a span directly so I'm using a content presenter which does the job (but is broken). Is this a bug or some feature/implication that I'm unaware of? And is there another way to bind a span to something to display it with working event handling & hyperlink clicks?
wpf
edited Dec 27 '18 at 15:24
mm8
81.4k81831
asked Dec 27 '18 at 14:53
CShark
8091121
I have stumbled upon a small problem and I'm not sure how to avoid it or work around it and whether it's a bug or a "feature".
When rendering a span with text in it, it seems to be disconnected from the logical tree when using a content presenter to render it. It does not bubble IsMouseOver (or probably any event) and Hyperlinks inside the span also won't fire any associated code.
<ContentPresenter>
<ContentPresenter.Content>
<!--Normally this would be a binding, but it behaves the same.-->
<Span>
Test <Hyperlink Click="Hyperlink_OnClick">Testlink</Hyperlink>
</Span>
</ContentPresenter.Content>
</ContentPresenter>
Inspecting the visual tree with Snoop indeed shows that the TextBlock used to display the span does not receive IsMouseOver-Events from it's inline elements while they themselves do indeed register them correctly (when you expand the inline property and navigate to them; they just refuse to pass them on). Also when attaching a message box to the click handler, nothing happens when you click on the link.
<TextBlock Grid.Row="1">
<Span>
Test <Hyperlink Click="Hyperlink_OnClick">Testlink</Hyperlink>
</Span>
</TextBlock>
This one on the other hand works as expected. The IsMouseOver works fine and even the Link works.
The premise of my problem is, that I want to dynamically bind the text of the TextBlock to something. But I can't bind the text-property to a span directly so I'm using a content presenter which does the job (but is broken). Is this a bug or some feature/implication that I'm unaware of? And is there another way to bind a span to something to display it with working event handling & hyperlink clicks?
wpf
wpf
edited Dec 27 '18 at 15:24
mm8
81.4k81831
asked Dec 27 '18 at 14:53
CShark
8091121
edited Dec 27 '18 at 15:24
mm8
81.4k81831
asked Dec 27 '18 at 14:53
CShark
8091121
edited Dec 27 '18 at 15:24
mm8
81.4k81831
edited Dec 27 '18 at 15:24
mm8
81.4k81831
edited Dec 27 '18 at 15:24
mm8
81.4k81831
81.4k81831
asked Dec 27 '18 at 14:53
CShark
8091121
asked Dec 27 '18 at 14:53
CShark
8091121
asked Dec 27 '18 at 14:53
CShark
8091121
8091121
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You could use a converter that returns a TextBlock with the Span added to its Inlines collection:
public class MyConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
Span span = value as Span;
TextBlock textBlock = new TextBlock();
textBlock.Inlines.Add(span);
return textBlock;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotSupportedException();
}
}
XAML:
<ContentPresenter Content="{Binding Span, Converter={StaticResource MyConverter}}" />
answered Dec 27 '18 at 15:16
mm8
81.4k81831
Well, it works. Even though nobody seems to know why....
– CShark
Dec 28 '18 at 17:29
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You could use a converter that returns a TextBlock with the Span added to its Inlines collection:
public class MyConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
Span span = value as Span;
TextBlock textBlock = new TextBlock();
textBlock.Inlines.Add(span);
return textBlock;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotSupportedException();
}
}
XAML:
<ContentPresenter Content="{Binding Span, Converter={StaticResource MyConverter}}" />
answered Dec 27 '18 at 15:16
mm8
81.4k81831
Well, it works. Even though nobody seems to know why....
– CShark
Dec 28 '18 at 17:29
add a comment |
You could use a converter that returns a TextBlock with the Span added to its Inlines collection:
public class MyConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
Span span = value as Span;
TextBlock textBlock = new TextBlock();
textBlock.Inlines.Add(span);
return textBlock;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotSupportedException();
}
}
XAML:
<ContentPresenter Content="{Binding Span, Converter={StaticResource MyConverter}}" />
answered Dec 27 '18 at 15:16
mm8
81.4k81831
Well, it works. Even though nobody seems to know why....
– CShark
Dec 28 '18 at 17:29
add a comment |
You could use a converter that returns a TextBlock with the Span added to its Inlines collection:
public class MyConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
Span span = value as Span;
TextBlock textBlock = new TextBlock();
textBlock.Inlines.Add(span);
return textBlock;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotSupportedException();
}
}
XAML:
<ContentPresenter Content="{Binding Span, Converter={StaticResource MyConverter}}" />
answered Dec 27 '18 at 15:16
mm8
81.4k81831
You could use a converter that returns a TextBlock with the Span added to its Inlines collection:
public class MyConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
Span span = value as Span;
TextBlock textBlock = new TextBlock();
textBlock.Inlines.Add(span);
return textBlock;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotSupportedException();
}
}
XAML:
<ContentPresenter Content="{Binding Span, Converter={StaticResource MyConverter}}" />
answered Dec 27 '18 at 15:16
mm8
81.4k81831
answered Dec 27 '18 at 15:16
mm8
81.4k81831
answered Dec 27 '18 at 15:16
mm8
81.4k81831
answered Dec 27 '18 at 15:16
mm8
81.4k81831
81.4k81831
Well, it works. Even though nobody seems to know why....
– CShark
Dec 28 '18 at 17:29
add a comment |
Well, it works. Even though nobody seems to know why....
– CShark
Dec 28 '18 at 17:29
Well, it works. Even though nobody seems to know why....
– CShark
Dec 28 '18 at 17:29
Well, it works. Even though nobody seems to know why....
– CShark
Dec 28 '18 at 17:29
add a comment |
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