Nodes in group should be same size

I have one group and I have several nodes in that group which are loaded dynamically of different size and I want that each node in group have same size which should have largest node. How can we do this.

Customize the layout to find the widest node and then make all of the nodes that wide.

The PoolLayout in the SwimLanes sample does this, in addition to other customizations, to make sure each lane has the same length. In your case you probably want to set the width of the TextBlock in each node, but I am unsure of what it is that you want to accomplish.

Can you give me link for pool lay out