Error using Using operand and XmlElement

Question

my code is like this:

        Using StateProv As XmlElement = CType(hotelSearch.SelectSingleNode("/ota:OTA_HotelSearchRQ/ota:Criteria/ota:Criterion/ota:Address/ota:StateProv", nsmgr), XmlElement) 'i am getting error in this line....
        StateProv.SetAttribute("StateCode", BLLHotel_Search.StateCode)
        StateProv.ChildNodes(0).InnerText = BLLHotel_Search.StateName
    End Using

error:
"using operand of type 'System.xml.xmlelement' must implement 'system.idisposable'"

Answer 1

You do not need to use Using

Just try

Dim StateProv As XmlElement = CType(hotelSearch.SelectSingleNode("/ota:OTA_HotelSearchRQ/ota:Criteria/ota:Criterion/ota:Address/ota:StateProv", nsmgr), XmlElement) 'i am getting error in this line.... 
StateProv.SetAttribute("StateCode", BLLHotel_Search.StateCode) 
StateProv.ChildNodes(0).InnerText = BLLHotel_Search.StateName 

From documentation of using

The using keyword :

As a statement, when it defines a scope at the end of which an object will be disposed.

To check if it has a value compare it to Nothing

Dim node As XmlNode = doc.SelectSingleNode("//")
If node IsNot Nothing Then
    Dim attribute As XmlAttribute = node.Attributes(0)
End If

Try this

Dim StateProv As XmlElement = CType(hotelSearch.SelectSingleNode("/ota:OTA_HotelSearchRQ/ota:Criteria/ota:Criterion/ota:Address/ota:StateProv", nsmgr), XmlElement) 

If StateProv IsNot Nothing Then
        StateProv.SetAttribute("StateCode", BLLHotel_Search.StateCode) 
        StateProv.ChildNodes(0).InnerText = BLLHotel_Search.StateName 
End If