How to Get Value from Selected Item in Listview

[shakira]

I am struggling before on how to get value from selected item in a listview.

As you've seen in my Hotel Reservation System (VB.NET Version) I use the following code to get the value from a Listview.

1. Dim
   
   FolioNumber As
   
   String
   
2. For
   
   Each
   
   sItem As
   
   ListViewItem In
   
   lvList.
   
   SelectedItems
   
3. FolioNumber =
   
   sItem.
   
   Text
   
4. Next
   

Although it is working fine but the succeding code will generate an error in the IDE of VB.NET.

1. With
   
   frmCheckIn
   
2. .
   
   State
   
   =
   
   modGlobal.
   
   FormState
   
   .
   
   adStatePopupMode
   
3. .
   
   FolioNumber
   
   =
   
   FolioNumber '< = Variable "FolioNumber" is used before it has been assigned a value. A null reference exception could result at runtime.
   
4. 
   
5. .
   
   ShowDialog
   
   (
   
   )
   
6. 
   
7. Call
   
   FillList(
   
   )
   
8. End
   
   With
   

After searching the internet I found a good solution to this problem. Just change the code above with this code:

1. .
   
   FolioNumber
   
   =
   
   lvList.
   
   SelectedItems
   
   (
   
   0
   
   )
   
   .
   
   Text