AvaloniaUI控件拖拽

将需求启用拖拽的控件实现PointerPressed方法

<TextBlock Text="{Binding Name}" PointerPressed="DoDrag" Background="Transparent"/>


private async void DoDrag(object sender, Avalonia.Input.PointerPressedEventArgs e)
        {
            dynamic Data = sender;
            if (Data.DataContext.GetType() != typeof(FlowTable)) return;
            var dragData = new DataObject();
            dragData.Set("TreeView", (FlowTable)Data.DataContext);//填写待拖拽的数据
            var result = await DragDrop.DoDragDrop(e, dragData, DragDropEffects.Copy);
        }

将接收拖拽的控件开启允许数据拖拽

<ItemsControl Items="{Binding Item}" DragDrop.AllowDrop="True" Background="Transparent"/>

全局响应拖拽方法（开启了DragDrop.AllowDrop都会响应到此方法）

AddHandler(DragDrop.DropEvent, Drop);//定义全局拖拽事件
AddHandler(DragDrop.DragOverEvent, DragOver);


private void DragOver(object sender, DragEventArgs e)
{
}


private void Drop(object sender, DragEventArgs e)
{
    dynamic Target = e.Source;
    dynamic TargetData = Target.DataContext;//目标数据
    if (TargetData.GetType() == typeof(FlowTabModel))
    {
        dynamic Source = e.Data.Get("TreeView");//源数据
    }
    else if (TargetData.GetType() == typeof(FlowView))
    {
        
    }
}