Where is Resource.GetObject ("") executed?

I have a custom control on the form. Basically, my Visual Studio has been fubared for the last 5 hours, because my properties load on initialization.

The code:

this.customControl.customProp = ((System.Collections.Generic.List<customType>)(resources.GetObject("customControl.customProp")));

What would I like to know where this code actually runs or stores these pieces of data somewhere? What is killing me right now is that there is data on this resource, however, the data is not loaded until I query the database. I can't seem to find where his data comes from.

I also looked at the resource file and in the "Other" section and did not see anything there.