title: winrt event drop dragenter etc.or zindex of image in grid
body: <p>I have a winrt app with a grid. The grid contains images. What I want do is to drag one image over an other image inside the grid and change the position. The movement of the images i have made with Drag_ManipulationDelta and works well. With allowdrop=true and the drop event I thougt I can get the target image, but the drop event never fired. What is wrong or should I check?</p>
  
  <p>So I tried different events, z.B. Pointer_moved etc. but if the events fires depends to the "position" of the image, If the moving Image is on top the underlaying image is not firing the events. So my next Idea is changing the zindex but image.zindex ist not existing. How can I chnage the zindex by code?</p>
  
  <p>Any Ideas are very welcome.</p>