Propagating the AutoScaleDimensions property

Question

.NET CF 3.5

How can I scale everything on my form ?

If I do this

this.AutoScaleDimensions = new System.Drawing.SizeF(120F, 120F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Dpi;

then the controls directly added on the form are properly repositioned BUT their size is not properly updated !

So how should I propagate the scaling factor to each sub-control ?