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KoolKabin
KoolKabin

Reputation: 17653

Removing Item from List

My code is supposed to remove item from list but its not removing item.

My Code:

dim myRoom as Room = New Room()
Dim myRoomList as List( of Room ) = new List( of Room )

...
myRoomList.add(myRoom)
msgbox(myRoomList.count)

...
myRoomList.remove(myRoom)
msgbox(myRoomList.count)

Upvotes: 0

Views: 6377

Answers (2)

Konrad Rudolph
Konrad Rudolph

Reputation: 545528

The only possible reason for this not to remove the item is when you have overriden the Equals method of the Room class with errors. For example, the following code would exhibit such a behaviour:

Class Room
    Public Overrides Function Equals(ByVal obj As Object) As Boolean
        Return False
    End Function
End Class

If that’s not the case, then the error is elsewhere and the code you have shown us does in fact work.

Upvotes: 1

Naveed Butt
Naveed Butt

Reputation: 2901

Are you sure that there is no item being added before the removal, so that the count is not increased again. Try using this for a test...

dim myRoom as Room = New Room()
Dim myRoomList as List( of Room ) = new List( of Room )

...
myRoomList.add(myRoom)
msgbox(myRoomList.count)

...
msgbox(myRoomList.count)
myRoomList.remove(myRoom)
msgbox(myRoomList.count)

Upvotes: 1

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