List.InsertAt

[BPak]

I have an extract from my code which shows Regex.split forming a list.
The list is tested at item 14 for a specific value and if not found
I want to INSERTAT a default value.

I keep getting error with whatever I try to use with InsertAt...

Could someone please show me how to use the InsertAt in the List.

Private Sub DecodeResults(line As String)
   Dim FrmLst As List
   Dim str1 As String
   Dim group As String
   Dim x As Int
   Dim NoSect As Object
   
   NoSect = "(0)"
   
   ' <strong><font color="#0000FF">7-12* </font></strong>
   ' 11.1L, M.V., 10Fe12, 1519m, 3yo+ Mdn, Mdn 3+, (2), $30000 ($350), Good, K L Bradley, 4, Cd 58.5, (SW), 1:31.63, (36.97), 20/1, S 7, 12 -, 8 8, T 4, 1-Accrual 58.0<br>

   'group = "11.1L, M.V., 10Fe12, 1519m, 3yo+ Mdn, Mdn 3+, (2), $30000 ($350), Good, K L Bradley, 4, Cd 58.5, (SW), 1:31.63, (36.97), 20/1, S 7, 12 -, 8 8, T 4, 1-Accrual 58.0"

   ' Missing 'SECT'...
   group = "11.1L, M.V., 10Fe12, 1519m, 3yo+ Mdn, Mdn 3+, (2), $30000 ($350), Good, K L Bradley, 4, Cd 58.5, (SW), 1:31.63, 20/1, S 7, 12 -, 8 8, T 4, 1-Accrual 58.0"
   
   FrmLst = Regex.Split(",", group)
   Log("FrmLst " & FrmLst.Size)   ' usually 21 items

   ' somtimes 'SECT' is missing from Country tracks
   If FrmLst.Size < 21 Then
      ' possibly 14 Is Not a Sect but Tote Odds
      str1 = FrmLst.Get(14)
      Log("NO SECT " & str1)
      ' if it has odds it will be like:  ' 4/1'
      ' check for '/'
      x = str1.IndexOf("/")
      If x > -1 Then
         ' we have odds in 14
         ' insrt a default 'Sect' Value - "(0)"
         ' ERROR - InsertAt --------------------------------------------------------------
'         FrmLst.InsertAt(14,"(0)")
'         FrmLst.InsertAt(14, NoSect)
'         FrmLst.InsertAt(14, Array As Object(NoSect))
      End If
   End If
End Sub

Error shown is...

FrmLst 20
NO SECT  20/1
importer_decoderesult (B4A line: 393)
 FrmLst.InsertAt(14,"(0)")
java.lang.UnsupportedOperationException
    at java.util.AbstractList.add(AbstractList.java:411)
   at anywheresoftware.b4a.objects.collections.List.InsertAt(List.java:102)
   at bpak.get.file.list.importer._decoderesult(importer.java:345)
   at bpak.get.file.list.importer._readhorseresults(importer.java:2266)
   at bpak.get.file.list.importer._readhorseform(importer.java:1924)
   at bpak.get.file.list.importer._readhtmlfile(importer.java:2354)
   at bpak.get.file.list.importer._doracelist(importer.java:1143)
   at bpak.get.file.list.main._btnreadlist_click(main.java:684)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:507)
   at anywheresoftware.b4a.BA.raiseEvent2(BA.java:167)
   at anywheresoftware.b4a.BA.raiseEvent2(BA.java:155)
   at anywheresoftware.b4a.BA.raiseEvent(BA.java:151)
   at anywheresoftware.b4a.objects.ViewWrapper$1.onClick(ViewWrapper.java:59)
   at android.view.View.performClick(View.java:2485)
   at android.view.View$PerformClick.run(View.java:9080)
   at android.os.Handler.handleCallback(Handler.java:587)
   at android.os.Handler.dispatchMessage(Handler.java:92)
   at android.os.Looper.loop(Looper.java:123)
   at android.app.ActivityThread.main(ActivityThread.java:3683)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:507)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
   at dalvik.system.NativeStart.main(Native Method)
java.lang.UnsupportedOperationException

 

[stevel05]

Regex.split returns an array which you can add to a list using AddAll, try

FrmLst.initialize
FrmLst.addall(Regex.Split(",", group))

Don't forget to initialize the List

 

[BPak]

Thanks. Works fine using the AddAll method.

 

[Erel]

A small explanation.
This result of this line:

FrmLst = Regex.Split(",", group)

is that the array is wrapped as a list. This allows you to treat the array as a list without copying any objects. However as the list is actually a wrapper for an array it is read-only.

By calling AddAll you are creating a regular list.

 

[BPak]

Thank you for the explanation.