捕获silverlight滚轮事件

silverlight小技巧

捕获silverlight滚轮事件

1. 在页面初始化时添加代码
   • HtmlPage.Window.AttachEvent("DOMMouseScroll", OnMouseWheel);
   • HtmlPage.Window.AttachEvent("onmousewheel", OnMouseWheel);
   • HtmlPage.Document.AttachEvent("onmousewheel", OnMouseWheel);
2. Mozilla/Safari浏览器监听detail属性，IE/Opera浏览器监听wheelDelta属性

private void OnMouseWheel(object sender, HtmlEventArgs args) {     double mouseDelta = 0;     ScriptObject e = args.EventObject;     // Mozilla and Safari        if (e.GetProperty("detail") != null)     {         mouseDelta = ((double)e.GetProperty("detail"));     } // IE and Opera        else if (e.GetProperty("wheelDelta") != null)     {         mouseDelta = ((double)e.GetProperty("wheelDelta"));     }     mouseDelta = Math.Sign(mouseDelta); }