=== modified file 'dhis-2/dhis-web/dhis-web-api/src/main/java/org/hisp/dhis/api/controller/DataValueController.java'
--- dhis-2/dhis-web/dhis-web-api/src/main/java/org/hisp/dhis/api/controller/DataValueController.java	2013-08-23 16:00:30 +0000
+++ dhis-2/dhis-web/dhis-web-api/src/main/java/org/hisp/dhis/api/controller/DataValueController.java	2013-09-17 18:23:30 +0000
@@ -45,6 +45,7 @@
 import org.hisp.dhis.organisationunit.OrganisationUnitService;
 import org.hisp.dhis.period.Period;
 import org.hisp.dhis.period.PeriodType;
+import org.hisp.dhis.system.util.ValidationUtils;
 import org.hisp.dhis.user.CurrentUserService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
@@ -123,6 +124,14 @@
         }
         
         value = StringUtils.trimToNull( value );
+
+        String valid = ValidationUtils.dataValueIsValid( value, dataElement );
+        
+        if ( valid != null )
+        {
+            ContextUtils.conflictResponse( response, "Invalid value: " + value + ", must match data element type: " + dataElement.getType() );
+            return;
+        }
         
         String storedBy = currentUserService.getCurrentUsername();
 

=== modified file 'dhis-2/dhis-web/dhis-web-dataentry/src/main/java/org/hisp/dhis/de/action/SaveValueAction.java'
--- dhis-2/dhis-web/dhis-web-dataentry/src/main/java/org/hisp/dhis/de/action/SaveValueAction.java	2013-08-23 16:05:01 +0000
+++ dhis-2/dhis-web/dhis-web-dataentry/src/main/java/org/hisp/dhis/de/action/SaveValueAction.java	2013-09-17 18:23:30 +0000
@@ -29,6 +29,8 @@
  */
 
 import com.opensymphony.xwork2.Action;
+
+import org.apache.commons.lang.StringUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.hisp.dhis.dataelement.DataElement;
@@ -189,21 +191,8 @@
 
         Date now = new Date();
 
-        if ( storedBy == null )
-        {
-            storedBy = "[unknown]";
-        }
-
-        if ( value != null && value.trim().length() == 0 )
-        {
-            value = null;
-        }
-
-        if ( value != null )
-        {
-            value = value.trim();
-        }
-
+        value = StringUtils.trimToNull( value );
+        
         // ---------------------------------------------------------------------
         // Validate value according to type from data element
         // ---------------------------------------------------------------------