Change data context of template property
I have a data template property on a control which I would like to wrap to change the behavior a bit.
That template property should be exposed to the user(developer) of my control but I want to change the data context, because the data context I would like to pass the user is somewhere within the visual tree and I don't want the user to navigate there every time. So in the end the binding path is just a bit simplyfied for the user (developer) of the BaseControl
XAML in control wrapper
<BaseControl SomeTemplate="{Binding MyTemplate}" />
Code behind in control wrapper
public static readonly DependencyProperty MyTemplateProperty = DependencyProperty.Register(
"MyTemplate", typeof(DataTemplate), typeof(BaseControl), new PropertyMetadata(default(DataTemplate)));
public DataTemplate MyTemplate { get { return (DataTemplate)GetValue(MyTemplateProperty ); } set { SetValue(MyTemplateProperty , value); } }
Usage of control wrapper
<BaseControl>
<BaseControl.MyTemplateProperty>
<!-- desired -->
<Label Content="{Binding Name}" />
<!-- actual -->
<!-- the data context of "OtherProperty" should be exposed to the user -->
<Label Content="{Binding DataContext.SomeProperty.OtherProperty.Name, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=SomeType}}" />
</BaseControl.MyTemplateProperty>
</BaseControl>
c# wpf datatemplate dependency-properties
asked Nov 19 '18 at 6:47
DerApeDerApe
2,28722643
add a comment |
I have a data template property on a control which I would like to wrap to change the behavior a bit.
That template property should be exposed to the user(developer) of my control but I want to change the data context, because the data context I would like to pass the user is somewhere within the visual tree and I don't want the user to navigate there every time. So in the end the binding path is just a bit simplyfied for the user (developer) of the BaseControl
XAML in control wrapper
<BaseControl SomeTemplate="{Binding MyTemplate}" />
Code behind in control wrapper
public static readonly DependencyProperty MyTemplateProperty = DependencyProperty.Register(
"MyTemplate", typeof(DataTemplate), typeof(BaseControl), new PropertyMetadata(default(DataTemplate)));
public DataTemplate MyTemplate { get { return (DataTemplate)GetValue(MyTemplateProperty ); } set { SetValue(MyTemplateProperty , value); } }
Usage of control wrapper
<BaseControl>
<BaseControl.MyTemplateProperty>
<!-- desired -->
<Label Content="{Binding Name}" />
<!-- actual -->
<!-- the data context of "OtherProperty" should be exposed to the user -->
<Label Content="{Binding DataContext.SomeProperty.OtherProperty.Name, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=SomeType}}" />
</BaseControl.MyTemplateProperty>
</BaseControl>
c# wpf datatemplate dependency-properties
asked Nov 19 '18 at 6:47
DerApeDerApe
2,28722643
You change theDataContextof a control by setting theDataContextproperty of it. Your issue is unclear.
– mm8
Nov 19 '18 at 12:54
I have some complex binding path within my control wrapper and I want that path to be simplyfied for the user of that wrapper template
– DerApe
Nov 20 '18 at 8:23
By "user" I guess you mean the developer. That's now how it works. A control inherits a DataContext and if you want some other DataContext, you will have to set it. This is what you would expect as a WPF and XAML developer. Trying to "simplify" or modify fundamental things such as this only makes your control more complex and harder to use.
– mm8
Nov 20 '18 at 10:38
add a comment |
I have a data template property on a control which I would like to wrap to change the behavior a bit.
That template property should be exposed to the user(developer) of my control but I want to change the data context, because the data context I would like to pass the user is somewhere within the visual tree and I don't want the user to navigate there every time. So in the end the binding path is just a bit simplyfied for the user (developer) of the BaseControl
XAML in control wrapper
<BaseControl SomeTemplate="{Binding MyTemplate}" />
Code behind in control wrapper
public static readonly DependencyProperty MyTemplateProperty = DependencyProperty.Register(
"MyTemplate", typeof(DataTemplate), typeof(BaseControl), new PropertyMetadata(default(DataTemplate)));
public DataTemplate MyTemplate { get { return (DataTemplate)GetValue(MyTemplateProperty ); } set { SetValue(MyTemplateProperty , value); } }
Usage of control wrapper
<BaseControl>
<BaseControl.MyTemplateProperty>
<!-- desired -->
<Label Content="{Binding Name}" />
<!-- actual -->
<!-- the data context of "OtherProperty" should be exposed to the user -->
<Label Content="{Binding DataContext.SomeProperty.OtherProperty.Name, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=SomeType}}" />
</BaseControl.MyTemplateProperty>
</BaseControl>
c# wpf datatemplate dependency-properties
asked Nov 19 '18 at 6:47
DerApeDerApe
2,28722643
I have a data template property on a control which I would like to wrap to change the behavior a bit.
That template property should be exposed to the user(developer) of my control but I want to change the data context, because the data context I would like to pass the user is somewhere within the visual tree and I don't want the user to navigate there every time. So in the end the binding path is just a bit simplyfied for the user (developer) of the BaseControl
XAML in control wrapper
<BaseControl SomeTemplate="{Binding MyTemplate}" />
Code behind in control wrapper
public static readonly DependencyProperty MyTemplateProperty = DependencyProperty.Register(
"MyTemplate", typeof(DataTemplate), typeof(BaseControl), new PropertyMetadata(default(DataTemplate)));
public DataTemplate MyTemplate { get { return (DataTemplate)GetValue(MyTemplateProperty ); } set { SetValue(MyTemplateProperty , value); } }
Usage of control wrapper
<BaseControl>
<BaseControl.MyTemplateProperty>
<!-- desired -->
<Label Content="{Binding Name}" />
<!-- actual -->
<!-- the data context of "OtherProperty" should be exposed to the user -->
<Label Content="{Binding DataContext.SomeProperty.OtherProperty.Name, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=SomeType}}" />
</BaseControl.MyTemplateProperty>
</BaseControl>
c# wpf datatemplate dependency-properties
c# wpf datatemplate dependency-properties
asked Nov 19 '18 at 6:47
DerApeDerApe
2,28722643
asked Nov 19 '18 at 6:47
DerApeDerApe
2,28722643
edited Nov 20 '18 at 11:05
DerApe
asked Nov 19 '18 at 6:47
DerApeDerApe
2,28722643
asked Nov 19 '18 at 6:47
DerApeDerApe
2,28722643
asked Nov 19 '18 at 6:47
DerApeDerApe
2,28722643
2,28722643
You change theDataContextof a control by setting theDataContextproperty of it. Your issue is unclear.
– mm8
Nov 19 '18 at 12:54
I have some complex binding path within my control wrapper and I want that path to be simplyfied for the user of that wrapper template
– DerApe
Nov 20 '18 at 8:23
By "user" I guess you mean the developer. That's now how it works. A control inherits a DataContext and if you want some other DataContext, you will have to set it. This is what you would expect as a WPF and XAML developer. Trying to "simplify" or modify fundamental things such as this only makes your control more complex and harder to use.
– mm8
Nov 20 '18 at 10:38
add a comment |
You change theDataContextof a control by setting theDataContextproperty of it. Your issue is unclear.
– mm8
Nov 19 '18 at 12:54
I have some complex binding path within my control wrapper and I want that path to be simplyfied for the user of that wrapper template
– DerApe
Nov 20 '18 at 8:23
By "user" I guess you mean the developer. That's now how it works. A control inherits a DataContext and if you want some other DataContext, you will have to set it. This is what you would expect as a WPF and XAML developer. Trying to "simplify" or modify fundamental things such as this only makes your control more complex and harder to use.
– mm8
Nov 20 '18 at 10:38
You change the
DataContext of a control by setting the DataContext property of it. Your issue is unclear.– mm8
Nov 19 '18 at 12:54
You change the
DataContext of a control by setting the DataContext property of it. Your issue is unclear.– mm8
Nov 19 '18 at 12:54
I have some complex binding path within my control wrapper and I want that path to be simplyfied for the user of that wrapper template
– DerApe
Nov 20 '18 at 8:23
I have some complex binding path within my control wrapper and I want that path to be simplyfied for the user of that wrapper template
– DerApe
Nov 20 '18 at 8:23
By "user" I guess you mean the developer. That's now how it works. A control inherits a DataContext and if you want some other DataContext, you will have to set it. This is what you would expect as a WPF and XAML developer. Trying to "simplify" or modify fundamental things such as this only makes your control more complex and harder to use.
– mm8
Nov 20 '18 at 10:38
By "user" I guess you mean the developer. That's now how it works. A control inherits a DataContext and if you want some other DataContext, you will have to set it. This is what you would expect as a WPF and XAML developer. Trying to "simplify" or modify fundamental things such as this only makes your control more complex and harder to use.
– mm8
Nov 20 '18 at 10:38
add a comment |
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You change the
DataContextof a control by setting theDataContextproperty of it. Your issue is unclear.– mm8
Nov 19 '18 at 12:54
I have some complex binding path within my control wrapper and I want that path to be simplyfied for the user of that wrapper template
– DerApe
Nov 20 '18 at 8:23
By "user" I guess you mean the developer. That's now how it works. A control inherits a DataContext and if you want some other DataContext, you will have to set it. This is what you would expect as a WPF and XAML developer. Trying to "simplify" or modify fundamental things such as this only makes your control more complex and harder to use.
– mm8
Nov 20 '18 at 10:38