Normally didn't do much in the partial class other than reference it. You could override what it was doing in the main class file though if needed pretty easy.

Normally didn't do much in the partial class other than reference it. You could override what it was doing in the main class file though if needed pretty easy. Again if it did break it was just aode and threw a normal exception in the designer, usually revolved around something that didn't work right in DesignMode so you had to check for that explicitly.