Android Question Trying to add Cursor data to a list throws error

[MrKim]

Can someone please tell me why this doesn't work?

        Do While Crsr.NextRow
            L.AddAll(Array As String(Crsr.GetString("Jr_JobNum"), Crsr.GetString("Jr_ReleaseNum"), Crsr.GetString("Jr_FirstDueDate"), Crsr.GetString("Pmp_PictureName")))
Loop

The error is:

Error occurred on line: 353 (Main)
java.lang.UnsupportedOperationException
    at java.util.AbstractList.add(AbstractList.java:148)
    at java.util.AbstractList.add(AbstractList.java:108)
    at java.util.AbstractCollection.addAll(AbstractCollection.java:342)
    at anywheresoftware.b4a.objects.collections.List.AddAll(List.java:92)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.shell.Shell.runVoidMethod(Shell.java:755)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:345)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:249)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:139)
    at anywheresoftware.b4a.BA$2.run(BA.java:360)
    at android.os.Handler.handleCallback(Handler.java:751)
    at android.os.Handler.dispatchMessage(Handler.java:95)
    at android.os.Looper.loop(Looper.java:154)
    at android.app.ActivityThread.main(ActivityThread.java:6688)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1468)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1358)

 

[Roycefer]

If an Array was assigned to the List L

'example
Dim L As List = Array(....)

, then it will be an immutable List and you cannot add to or remove from L.

 

[MrKim]

Never Mind, I was using the same list a second time with different data and did not initialize...