Problems getting custom object into a custom collection [Resolved]

I have a class called objLocate which stores information about various searches my program performs. I also have a custom class that works like a collection. Both of the classes work correctly because I have gotten my save previous searches to work correctly. I am trying to create a list box now loaded with some standard features that will be linked to the custom collection class I created by referecing the object through the item property.

I am getting the error
Additional information: Object reference not set to an instance of an object
on the line
Dim tempObject As objLocate = New objLocate(SearchFor.RegularExpression, desMachineType.HomeWorkstation, "MA-EA.*", enumSaveName.DellTag, enumSearchTab.Basic, enumUpdateHashTable.No)

I have tried as new objLocate as well and I even tried the like that is commented out which is a function i created to create these objects from the class. I keep getting the same error.

VB Code:

lstDivisions.Items.Add("MA-EA")
        Dim tempObject As objLocate = New objLocate(SearchFor.RegularExpression, desMachineType.HomeWorkstation, "MA-EA.*", enumSaveName.DellTag, enumSearchTab.Basic, enumUpdateHashTable.No)
        'Dim tempObject As objLocate = LoadLookingForObject(enumSearchTab.Basic, enumPresetSearch.GX110)
        preDivision.Add(tempObject)
        tempObject = Nothing
        lstDivisions.Items.Add("MA-FI")
        Dim tempObject1 As New objLocate(SearchFor.RegularExpression, desMachineType.HomeWorkstation, "MA-FI.*", enumSaveName.DellTag, enumSearchTab.Basic, enumUpdateHashTable.No)
        preDivision.Add(tempObject1)

Do all parameter are enumeration ? or are they all instanciated ?

Code:

---

SearchFor.RegularExpression
desMachineType.HomeWorkstation
enumSaveName.DellTag
enumSearchTab.Basic enumUpdateHashTable.No

---

or probably the error is in the New Event of objLocate?

They are enumerations, I've never had problems creating objLocate objects from this class before.

The error actually happens on this line

preDivision.Add(tempObject)

and what is the definition of preDivision?

Do it is Instantiated earlier ?

Thanks for that response I found the problem was in the way I declared preDivision I forgot to ad as new on it. It's working now thats for your help.

I am adding props to your replies.

"You must spread some Reputation around before giving it to Zakary again."

Looks like I already gave you props for helping me out on something else. I'll get you back in the future ;)

Happy to help body !!:)