WPF 动画显示控件

   当我们要显示一个控件的时候，不仅仅要显示这个控件，还要有动画的效果。

   主要用到了doubleanimation类。

 public static void showanimation(object control)
        {
            type type = control.gettype();
            switch (type.name)
            {
                case "border":
                    {
                        border newborder = (border)control;
                        #region 高、宽变化动画

                        doubleanimation widthanimation = new doubleanimation(0, newborder.width, new duration(timespan.fromseconds(0.5)));
                        newborder.beginanimation(border.widthproperty, widthanimation, handoffbehavior.compose);

                        doubleanimation heightanimation = new doubleanimation(0, newborder.height, new duration(timespan.fromseconds(0.5)));
                        newborder.beginanimation(border.heightproperty, heightanimation, handoffbehavior.compose);
                        #endregion
                    }
                    break;

                default:
                    break;
            }
        }

调用的时候也简单。

private void button_click(object sender, routedeventargs e)
        {
            bord1.visibility = visibility.visible;
            showanimation(bord1);
        }

效果如下：