多列滚动，可调整大小的面板？

Question

I have this:

Each list is its own WrapPanel and they are all on another WrapPanel which is in a ScrollViewer . If I don't set the height myself for the main WrapPanel it assumes I want the WrapPanel as high as it can go giving me only one column whereas I want as many columns as needed to fill the window.

If I set the Width and Height of the WrapPanel that holds everything to fixed numbers, but I want it to change when the user resizes the window.

Answer 1

In your example screen shot and description I see a tab control whose anchor is set to Top, Left, Bottom, and Right. The tab page with AutoScroll set to true. Within the tab page I see a FlowLayoutPanel. The FlowLayoutPanel has its AutoSize property set to true. I also see a set of other panels/user controls each of which contains a title and a series of check boxes.

Answer 2

You can`t achieve this with standard controls. You can try to create your own custom WrapPanel implementation. But, actually, looking at original WrapPanel sources I think this will be quite tricky. You see, what you want, is basically to measure how many columns can fit in the current window, while every element in column can be of any size. The way I see that algorithm, it will require N*N iterations to get the final result. So you may have problems with performance.