private void Target_Drop(object s, DragEventArgs e)
{
if (IsInitialized())
{
if (IsDragging)
{
e.Handled = true;
if (e.Data.GetDataPresent(Name))
{
DropEventArgs ea = new DropEventArgs()
{
Package = e.Data.GetData(Name),
Source = currentSource
};
// Invoke the CanDrop event again to ask the target if we're allowed to drop
CanDrop.GetInvocationList().Where(d => d.Target == s).First().DynamicInvoke(ea);
if (ea.AllowDrop)
{
Drop.GetInvocationList().Where(d => d.Target == s).First().DynamicInvoke(ea);
// Also fire DragLeave since the system won't do this for us.
DragLeave.GetInvocationList().Where(d => d.Target == s).First().DynamicInvoke();
}
}
}
}
}
private void Target_DragOver(object s, DragEventArgs e)
{
if (IsInitialized())
{
if (IsDragging)
{
e.Handled = true;
DropEventArgs ea = new DropEventArgs()
{
Package = e.Data.GetData(Name),
Source = currentSource
};
CanDrop.GetInvocationList().Where(d => d.Target == s).First().DynamicInvoke(ea);
if (ea.AllowDrop)
{
e.Effects = DragDropEffects.Move;
}
else
{
e.Effects = DragDropEffects.None;
}
}
}
}
private void Target_Drop(object s, DragEventArgs e)
{
if (IsInitialized())
{
if (IsDragging)
{
e.Handled = true;
if (e.Data.GetDataPresent(Name))
{
DropEventArgs ea = new DropEventArgs()
{
Package = e.Data.GetData(Name),
Source = currentSource
};
// Invoke the CanDrop event again to ask the target if we're allowed to drop
CanDrop.GetInvocationList().Where(d => d.Target == s).First().DynamicInvoke(ea);
if (ea.AllowDrop)
{
Drop.GetInvocationList().Where(d => d.Target == s).First().DynamicInvoke(ea);
// Also fire DragLeave since the system won't do this for us.
DragLeave.GetInvocationList().Where(d => d.Target == s).First().DynamicInvoke();
}
}
}
}
}
private void Target_DragLeave(object s, DragEventArgs e)
{
if (IsInitialized())
{
if (IsDragging)
{
e.Handled = true;
DropEventArgs ea = new DropEventArgs()
{
Package = e.Data.GetData(Name),
Source = currentSource
};
CanDrop.GetInvocationList().Where(d => d.Target == s).First().DynamicInvoke(ea);
if (ea.AllowDrop)
{
DragLeave.GetInvocationList().Where(d => d.Target == s).First().DynamicInvoke();
}
}
}
}
