B4J Question ReadList missing parameter help


Well-Known Member
Licensed User
My ReadList and WriteList lines are showing a missing parameter error msg. From all the examples I have seen for ReadList/WriteList my lines look correct, so I don't know why I am getting that error msg.

Thanks for any help...

#Region Project Attributes 
    #MainFormWidth: 600
    #MainFormHeight: 600
#End Region

Sub Process_Globals
    Private MainForm As Form

End Sub

Sub AppStart (Form1 As Form, Args() As String)
    MainForm = Form1
    'MainForm.RootPane.LoadLayout("Layout1") 'Load the layout file.
    Dim list1 As List
    list1 = File.ReadList(File.DirData, "List.txt")
    list1.Set(0, "xxxx")
    list1.Set(1, "zzzz")
    File.WriteList(File.DirData, "List.txt", list1)
End Sub

'Return true to allow the default exceptions handler to handle the uncaught exception.
Sub Application_Error (Error As Exception, StackTrace As String) As Boolean
    Return True
End Sub


Well-Known Member
Licensed User
its because .DirData("...")
Upvote 0