WPF Mosaic like layout?

Does anyone know of a layout control that I can give it multiple controls and tries to organise them on the screen?

I want something like a wrap panel, but the controls have different sizes and ideally I want to minizmise the e开发者_运维问答mpty spaces between them.

I am building a workaround class to do that, same reason that your but if you looking for a paid solution this guys have nice dashboard windows metro style based