Created attachment 58042 [details]
calc example

Problem description: 

Steps to reproduce:
1. Download file attached and start macro 'filter'

OR

1. Open Calc and fill in cells A2:'1', A3:'libre'
2. Open Basic IDE, insert and start the following macro:

Sub Filter
 Dim oFilterDef as Object        'Filterdescriptor
 Dim oFilterfield as Object      'Filterkriterium
 Dim oArea as Object             'Filterarea
 
 oFilterfield = createUnoStruct("com.sun.star.sheet.TableFilterField")
 With oFilterfield
  .Field = 0
  .IsNumeric = False
  .Operator = com.sun.star.sheet.FilterOperator.EQUAL
  .NumericValue = 1
  .StringValue = "libre"
 end with
  
 oArea = ThisComponent.Sheets.getbyIndex(0).getCellRangebyPosition(0, 0, 3, 6) 
 oFilterDef = oArea.createFilterDescriptor(True)
 With oFilterDef
  .setFilterFields(Array(oFilterfield))
  .ContainsHeader = True
  .UseRegularExpressions = False
  .IsCaseSensitive = False
 end with
 oArea.Filter(oFilterDef)
end sub

Current behavior:
Macro filters the given .NumericValue (in the example it is set to '1' just for demonstration)

Expected behavior:
Macro should filter the .StringValue 'libre'. That works fine with LO 3.4, but not in version 3.5 (German). 

Struct com.sun.star.sheet.TableFilterField2 and com.sun.star.sheet.TableFilterField3 behave in the same way.

Platform (if different from the browser): 
tested on WindowsXP and Ubuntu 11.10
              
Browser: Opera/9.80 (Windows NT 5.1; U; de) Presto/2.10.229 Version/11.61