WPF interactivity trigger mousewheel not working











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I have this xaml attached to a grid (and I've tried it on a stackpanel):



<i:Interaction.Triggers>
<i:EventTrigger EventName="MouseWheel">
<i:InvokeCommandAction Command="{Binding PreviousWeekCommand}"/>
</i:EventTrigger>
</i:Interaction.Triggers>


I added the namespace:



xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"


and referenced the interactivity dll in my solution. This is my first try with interactivity triggers so I'm not sure why it's not working -- that is, the mousewheel does nothing either way I scroll it. I know the command works as it's the same command for a button that works properly. I get no errors and I'm not using any mvvm frameworks or anything. Did I miss a step?










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  • Where do you use the trigers? In Button, where the binding does work?
    – Rekshino
    Nov 12 at 8:30















up vote
0
down vote

favorite












I have this xaml attached to a grid (and I've tried it on a stackpanel):



<i:Interaction.Triggers>
<i:EventTrigger EventName="MouseWheel">
<i:InvokeCommandAction Command="{Binding PreviousWeekCommand}"/>
</i:EventTrigger>
</i:Interaction.Triggers>


I added the namespace:



xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"


and referenced the interactivity dll in my solution. This is my first try with interactivity triggers so I'm not sure why it's not working -- that is, the mousewheel does nothing either way I scroll it. I know the command works as it's the same command for a button that works properly. I get no errors and I'm not using any mvvm frameworks or anything. Did I miss a step?










share|improve this question
























  • Where do you use the trigers? In Button, where the binding does work?
    – Rekshino
    Nov 12 at 8:30













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I have this xaml attached to a grid (and I've tried it on a stackpanel):



<i:Interaction.Triggers>
<i:EventTrigger EventName="MouseWheel">
<i:InvokeCommandAction Command="{Binding PreviousWeekCommand}"/>
</i:EventTrigger>
</i:Interaction.Triggers>


I added the namespace:



xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"


and referenced the interactivity dll in my solution. This is my first try with interactivity triggers so I'm not sure why it's not working -- that is, the mousewheel does nothing either way I scroll it. I know the command works as it's the same command for a button that works properly. I get no errors and I'm not using any mvvm frameworks or anything. Did I miss a step?










share|improve this question















I have this xaml attached to a grid (and I've tried it on a stackpanel):



<i:Interaction.Triggers>
<i:EventTrigger EventName="MouseWheel">
<i:InvokeCommandAction Command="{Binding PreviousWeekCommand}"/>
</i:EventTrigger>
</i:Interaction.Triggers>


I added the namespace:



xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"


and referenced the interactivity dll in my solution. This is my first try with interactivity triggers so I'm not sure why it's not working -- that is, the mousewheel does nothing either way I scroll it. I know the command works as it's the same command for a button that works properly. I get no errors and I'm not using any mvvm frameworks or anything. Did I miss a step?







c# wpf xaml






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share|improve this question













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edited Nov 12 at 14:27









Rob

1,0001022




1,0001022










asked Nov 12 at 8:20









linus72982

7261021




7261021












  • Where do you use the trigers? In Button, where the binding does work?
    – Rekshino
    Nov 12 at 8:30


















  • Where do you use the trigers? In Button, where the binding does work?
    – Rekshino
    Nov 12 at 8:30
















Where do you use the trigers? In Button, where the binding does work?
– Rekshino
Nov 12 at 8:30




Where do you use the trigers? In Button, where the binding does work?
– Rekshino
Nov 12 at 8:30












1 Answer
1






active

oldest

votes

















up vote
1
down vote



accepted










The posted code does work. The reason why you have an issue should be, that DataContext of element, where you use the triggers has no PreviousWeekCommand command. You could use binding with RelativeSource



<i:InvokeCommandAction Command="{Binding DataContext.PreviousWeekCommand, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=ControlTypeWhereDataContextHasPreviousWeekCommand}}"/>





share|improve this answer





















  • It does work -- I moved it to the usercontrol parent that already had the proper datacontext and it didn't seem to work, at first, but I had to find some sweet spots. I wonder if there is a way for all child elements to inherit those triggers
    – linus72982
    Nov 12 at 17:42











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
1
down vote



accepted










The posted code does work. The reason why you have an issue should be, that DataContext of element, where you use the triggers has no PreviousWeekCommand command. You could use binding with RelativeSource



<i:InvokeCommandAction Command="{Binding DataContext.PreviousWeekCommand, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=ControlTypeWhereDataContextHasPreviousWeekCommand}}"/>





share|improve this answer





















  • It does work -- I moved it to the usercontrol parent that already had the proper datacontext and it didn't seem to work, at first, but I had to find some sweet spots. I wonder if there is a way for all child elements to inherit those triggers
    – linus72982
    Nov 12 at 17:42















up vote
1
down vote



accepted










The posted code does work. The reason why you have an issue should be, that DataContext of element, where you use the triggers has no PreviousWeekCommand command. You could use binding with RelativeSource



<i:InvokeCommandAction Command="{Binding DataContext.PreviousWeekCommand, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=ControlTypeWhereDataContextHasPreviousWeekCommand}}"/>





share|improve this answer





















  • It does work -- I moved it to the usercontrol parent that already had the proper datacontext and it didn't seem to work, at first, but I had to find some sweet spots. I wonder if there is a way for all child elements to inherit those triggers
    – linus72982
    Nov 12 at 17:42













up vote
1
down vote



accepted







up vote
1
down vote



accepted






The posted code does work. The reason why you have an issue should be, that DataContext of element, where you use the triggers has no PreviousWeekCommand command. You could use binding with RelativeSource



<i:InvokeCommandAction Command="{Binding DataContext.PreviousWeekCommand, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=ControlTypeWhereDataContextHasPreviousWeekCommand}}"/>





share|improve this answer












The posted code does work. The reason why you have an issue should be, that DataContext of element, where you use the triggers has no PreviousWeekCommand command. You could use binding with RelativeSource



<i:InvokeCommandAction Command="{Binding DataContext.PreviousWeekCommand, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=ControlTypeWhereDataContextHasPreviousWeekCommand}}"/>






share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 12 at 8:41









Rekshino

2,5561726




2,5561726












  • It does work -- I moved it to the usercontrol parent that already had the proper datacontext and it didn't seem to work, at first, but I had to find some sweet spots. I wonder if there is a way for all child elements to inherit those triggers
    – linus72982
    Nov 12 at 17:42


















  • It does work -- I moved it to the usercontrol parent that already had the proper datacontext and it didn't seem to work, at first, but I had to find some sweet spots. I wonder if there is a way for all child elements to inherit those triggers
    – linus72982
    Nov 12 at 17:42
















It does work -- I moved it to the usercontrol parent that already had the proper datacontext and it didn't seem to work, at first, but I had to find some sweet spots. I wonder if there is a way for all child elements to inherit those triggers
– linus72982
Nov 12 at 17:42




It does work -- I moved it to the usercontrol parent that already had the proper datacontext and it didn't seem to work, at first, but I had to find some sweet spots. I wonder if there is a way for all child elements to inherit those triggers
– linus72982
Nov 12 at 17:42


















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