Forums Ultimate UI for WPF
Your Privacy Matters: We use our own and third-party cookies to improve your experience on our website. By continuing to use the website we understand that you accept their use. Cookie Policy
Close
Nathan Chape
150
Drag and Drop Framework - Prism, dragging from one module and drop into another module
posted

Hi! I'm using prism in my application and I was wondering if there is anyway to use the drag and drop framework to drag items between to different modules.

Module 1                              Module 2

View A - ViewModel A   =>  View B - Viewmodel B

In View A I have a datatemplate that implements the following:

<ig:DragDropManager.DragSource >
<ig:DragSource IsDraggable="True"
DragChannels="ChannelA">
<i:Interaction.Triggers>
<i:EventTrigger
EventName="DragStart">
<!-- ReSharper disable once Xaml.BindingWithContextNotResolved -->
<local:InvokeDelegateCommandAction
Command="{Binding Source={x:Reference DataTreeRootGrid}, Path=DataContext.OnDragStartCommand}"
CommandParameter="{Binding RelativeSource={RelativeSource Self}, Path=InvokeParameter}"/>
</i:EventTrigger>
<i:EventTrigger
EventName="DragEnter">
<!-- ReSharper disable once Xaml.BindingWithContextNotResolved -->
<local:InvokeDelegateCommandAction
Command="{Binding Source={x:Reference DataTreeRootGrid}, Path=DataContext.OnDragEnterCommand}"
CommandParameter="{Binding RelativeSource={RelativeSource Self}, Path=InvokeParameter}"/>
</i:EventTrigger>
<i:EventTrigger
EventName="DragLeave">
<!-- ReSharper disable once Xaml.BindingWithContextNotResolved -->
<local:InvokeDelegateCommandAction
Command="{Binding Source={x:Reference DataTreeRootGrid}, Path=DataContext.OnDragLeaveCommand}"
CommandParameter="{Binding RelativeSource={RelativeSource Self}, Path=InvokeParameter}"/>
</i:EventTrigger>
<i:EventTrigger
EventName="Drop">
<!-- ReSharper disable once Xaml.BindingWithContextNotResolved -->
<local:InvokeDelegateCommandAction
Command="{Binding Source={x:Reference DataTreeRootGrid}, Path=DataContext.OnDropCommand}"
CommandParameter="{Binding RelativeSource={RelativeSource Self}, Path=InvokeParameter}"/>
</i:EventTrigger>
<i:EventTrigger
EventName="DragOver">
<!-- ReSharper disable once Xaml.BindingWithContextNotResolved -->
<local:InvokeDelegateCommandAction
Command="{Binding Source={x:Reference DataTreeRootGrid}, Path=DataContext.OnDragOverCommand}"
CommandParameter="{Binding RelativeSource={RelativeSource Self}, Path=InvokeParameter}"/>
</i:EventTrigger>
</i:Interaction.Triggers>

</ig:DragSource>
</ig:DragDropManager.DragSource>

<ig:DragDropManager.DropTarget>
<ig:DropTarget IsDropTarget="True"
DropChannels="ChannelA"/>

</ig:DragDropManager.DropTarget>

I am able to drag and drop within this View A (which is intended). I am unclear how to enable the "Drop" event in Module B. (Via WPF I'd just set a control to "AllowDrop = true" and hook up to it's Drop event.) Is there someway to do this using your framework? 

Regards,

Nathan