Resize Control Add-In Height NAV 2013

FlorianSchmucker

Hi,

i'm trying to create a Control Add-In in C#.
In my control i have a button, which displays a ListView at the bottom and hides it also on second click.
Now i want to make the control smaller, if i click at the button to hide the ListView.
I get it with

this.ApplySize(new DisplaySize(0, 350, int.MaxValue), new DisplaySize(75, 180, 300));

but its very slow.
I want to hide it very fast, even if i click on my button and not 2 seconds later.

Any help??