Window min width in WPF

I have a 2 collumn grid for my application. The one has some minimum width and has width = * and the other has width=auto.. The problem is that when i resize the window ,when the grid has its minimum width the window shouldnt resize.... I c开发者_如何学编程an set min width but i should guess the width of the auto collumn and this is not good i think....

I am not positive what you are asking here, but taking a wild stab at it, do you just want to set the MinimumWidth of the Window? You can certainly do that.