diff --git a/modules/plugin_dbui/__init__.py b/modules/plugin_dbui/__init__.py
index 68d52b772687386443d6e033fe7b9a21c36a3910..1522463d60eb398bb6177b798964e8602df0aec9 100644
--- a/modules/plugin_dbui/__init__.py
+++ b/modules/plugin_dbui/__init__.py
@@ -82,6 +82,7 @@ from helper import (as_list,
 from mapper import map_default, map_tabpanel
 from navtree import Node
 from selector import Selector
+from validators import IS_IN_USET
 from viewportmodifier import ViewportModifier
 
 UNDEF = 'undefined'
diff --git a/modules/plugin_dbui/validators.py b/modules/plugin_dbui/validators.py
new file mode 100644
index 0000000000000000000000000000000000000000..1ea21311638ad0601729400e6ed2dc081a55b707
--- /dev/null
+++ b/modules/plugin_dbui/validators.py
@@ -0,0 +1,42 @@
+# -*- coding: utf-8 -*-
+""" validators
+
+@author: R. Le Gac
+
+"""
+from gluon.validators import IS_IN_SET
+
+
+class IS_IN_USET(IS_IN_SET):
+    """IS_IN_SET validator but working with unicode string.
+    
+    """
+    
+    def __init__(self, theset, **kwargs):
+        
+        myset = []
+        
+        if isinstance(theset, (list, tuple)):
+            for el in theset:
+                if isinstance(el, unicode):
+                    el = el.encode("utf-8")
+                myset.append(el)
+
+        elif isinstance(theset, dict):
+            myset = {}
+            for key in theset:
+                if isinstance(key, unicode):
+                    myset[key.encode("utf-8")] = theset[key]
+                else:
+                    myset[key] = theset[key]
+                
+        IS_IN_SET.__init__(self, myset, **kwargs)
+    
+    
+    def __call__(self, value):
+        
+        if isinstance(value, unicode):
+            value = value.encode("utf-8")
+            
+        return IS_IN_SET.__call__(self, value)
+        
\ No newline at end of file
diff --git a/static/plugin_dbui/CHANGELOG b/static/plugin_dbui/CHANGELOG
index 746eda158f50a8915dab907892dcabb394c92397..a4a1e411a680265bc2de9c419192428f78bc7d07 100644
--- a/static/plugin_dbui/CHANGELOG
+++ b/static/plugin_dbui/CHANGELOG
@@ -3,7 +3,8 @@
 HEAD
    - Add the plugin App.grid.plugin.Export.
    - Mask the whole viewport during loading a PanelWithUrlSelector.
-   - Version information can be export via the plugin pGridExport.
+   - Data on version can be export via the plugin pGridExport.
+   - Add the validator IS_IN_USET.
 
 0.6.1.7 (Sep 2014)
    - Use inline script and Ext.grid.Panel to display software versions