How to set OnManipulationDelta on listbox?
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I am writing an application for touchscreens. The standard ManipulationDelta is only 3 pixels, which means, if I try to swipe left or right on a listbox, most of the time the listbox starts scrolling up or down.
In another post I read that you need to make a custom listbox which inherits from Listbox, and override OnManipulationDelta.
So I did exactly that:
Protected Overrides Sub OnManipulationDelta(e As ManipulationDeltaEventArgs)
'Console.WriteLine("Detected" & e.CumulativeManipulation.Translation.Length)
If (Math.Abs(e.CumulativeManipulation.Translation.Y) > 35) Then
OnManipulationDelta(e)
Else
e.Handled = True
End If
End Sub
The problem is that the OnManipulationDelta event is only triggered if ScrollViewer.PanningMode="None" on the listbox.
But this in turn means that the listbox does not scroll up or down anymore.
How can I set a more useable delta and still let the listbox scroll up or down?
wpf listbox touchscreen
asked Nov 11 at 16:30
Richard Lleram
62
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0
down vote
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I am writing an application for touchscreens. The standard ManipulationDelta is only 3 pixels, which means, if I try to swipe left or right on a listbox, most of the time the listbox starts scrolling up or down.
In another post I read that you need to make a custom listbox which inherits from Listbox, and override OnManipulationDelta.
So I did exactly that:
Protected Overrides Sub OnManipulationDelta(e As ManipulationDeltaEventArgs)
'Console.WriteLine("Detected" & e.CumulativeManipulation.Translation.Length)
If (Math.Abs(e.CumulativeManipulation.Translation.Y) > 35) Then
OnManipulationDelta(e)
Else
e.Handled = True
End If
End Sub
The problem is that the OnManipulationDelta event is only triggered if ScrollViewer.PanningMode="None" on the listbox.
But this in turn means that the listbox does not scroll up or down anymore.
How can I set a more useable delta and still let the listbox scroll up or down?
wpf listbox touchscreen
asked Nov 11 at 16:30
Richard Lleram
62
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I am writing an application for touchscreens. The standard ManipulationDelta is only 3 pixels, which means, if I try to swipe left or right on a listbox, most of the time the listbox starts scrolling up or down.
In another post I read that you need to make a custom listbox which inherits from Listbox, and override OnManipulationDelta.
So I did exactly that:
Protected Overrides Sub OnManipulationDelta(e As ManipulationDeltaEventArgs)
'Console.WriteLine("Detected" & e.CumulativeManipulation.Translation.Length)
If (Math.Abs(e.CumulativeManipulation.Translation.Y) > 35) Then
OnManipulationDelta(e)
Else
e.Handled = True
End If
End Sub
The problem is that the OnManipulationDelta event is only triggered if ScrollViewer.PanningMode="None" on the listbox.
But this in turn means that the listbox does not scroll up or down anymore.
How can I set a more useable delta and still let the listbox scroll up or down?
wpf listbox touchscreen
asked Nov 11 at 16:30
Richard Lleram
62
I am writing an application for touchscreens. The standard ManipulationDelta is only 3 pixels, which means, if I try to swipe left or right on a listbox, most of the time the listbox starts scrolling up or down.
In another post I read that you need to make a custom listbox which inherits from Listbox, and override OnManipulationDelta.
So I did exactly that:
Protected Overrides Sub OnManipulationDelta(e As ManipulationDeltaEventArgs)
'Console.WriteLine("Detected" & e.CumulativeManipulation.Translation.Length)
If (Math.Abs(e.CumulativeManipulation.Translation.Y) > 35) Then
OnManipulationDelta(e)
Else
e.Handled = True
End If
End Sub
The problem is that the OnManipulationDelta event is only triggered if ScrollViewer.PanningMode="None" on the listbox.
But this in turn means that the listbox does not scroll up or down anymore.
How can I set a more useable delta and still let the listbox scroll up or down?
wpf listbox touchscreen
wpf listbox touchscreen
asked Nov 11 at 16:30
Richard Lleram
62
asked Nov 11 at 16:30
Richard Lleram
62
asked Nov 11 at 16:30
Richard Lleram
62
asked Nov 11 at 16:30
Richard Lleram
62
asked Nov 11 at 16:30
Richard Lleram
62
62
add a comment |
add a comment |
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