diff --git a/pom.xml b/pom.xml
index c354925..db3dbda 100644
--- a/pom.xml
+++ b/pom.xml
@@ -167,6 +167,14 @@
 			<version>[2.0.0-SNAPSHOT, 3.0.0-SNAPSHOT)</version>
 		</dependency>
 
+
+		<!-- tabular-data-widget-common-event -->
+		<dependency>
+			<groupId>org.gcube.portlets.user</groupId>
+			<artifactId>tabular-data-widget-common-event</artifactId>
+			<version>1.0.0-SNAPSHOT</version>
+		</dependency>
+
 		<!-- LOGGING -->
 		<dependency>
 			<groupId>com.allen-sauer.gwt.log</groupId>
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/client/rpc/TDGWTService.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/client/rpc/TDGWTService.java
index eaaf00f..ec78a6c 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/client/rpc/TDGWTService.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/client/rpc/TDGWTService.java
@@ -20,7 +20,6 @@ import org.gcube.portlets.user.td.gwtservice.shared.sdmx.SDMXImportMonitor;
 import org.gcube.portlets.user.td.gwtservice.shared.sdmx.SDMXImportSession;
 import org.gcube.portlets.user.td.gwtservice.shared.source.SDMXRegistrySource;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.ColumnData;
-import org.gcube.portlets.user.td.gwtservice.shared.tr.TRId;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.TabResource;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.TableData;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.metadata.TRMetadata;
@@ -29,8 +28,8 @@ import org.gcube.portlets.user.td.gwtservice.shared.tr.table.metadata.TabMetadat
 import org.gcube.portlets.user.td.gwtservice.shared.tr.type.Agencies;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.type.Codelist;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.type.Dataset;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
-import com.google.gwt.user.client.rpc.AsyncCallback;
 import com.google.gwt.user.client.rpc.RemoteService;
 import com.google.gwt.user.client.rpc.RemoteServiceRelativePath;
 
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/client/rpc/TDGWTServiceAsync.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/client/rpc/TDGWTServiceAsync.java
index 03d2609..ca3fae3 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/client/rpc/TDGWTServiceAsync.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/client/rpc/TDGWTServiceAsync.java
@@ -11,7 +11,6 @@ import org.gcube.portlets.user.td.gwtservice.shared.csv.CSVExportSession;
 import org.gcube.portlets.user.td.gwtservice.shared.csv.CSVImportMonitor;
 import org.gcube.portlets.user.td.gwtservice.shared.csv.CSVImportSession;
 import org.gcube.portlets.user.td.gwtservice.shared.csv.CSVRowError;
-import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTServiceException;
 import org.gcube.portlets.user.td.gwtservice.shared.file.FileUploadMonitor;
 import org.gcube.portlets.user.td.gwtservice.shared.file.HeaderPresence;
 import org.gcube.portlets.user.td.gwtservice.shared.sdmx.SDMXExportMonitor;
@@ -20,7 +19,6 @@ import org.gcube.portlets.user.td.gwtservice.shared.sdmx.SDMXImportMonitor;
 import org.gcube.portlets.user.td.gwtservice.shared.sdmx.SDMXImportSession;
 import org.gcube.portlets.user.td.gwtservice.shared.source.SDMXRegistrySource;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.ColumnData;
-import org.gcube.portlets.user.td.gwtservice.shared.tr.TRId;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.TabResource;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.TableData;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.metadata.TRMetadata;
@@ -29,6 +27,7 @@ import org.gcube.portlets.user.td.gwtservice.shared.tr.table.metadata.TabMetadat
 import org.gcube.portlets.user.td.gwtservice.shared.tr.type.Agencies;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.type.Codelist;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.type.Dataset;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.google.gwt.core.client.GWT;
 import com.google.gwt.user.client.rpc.AsyncCallback;
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/SessionUtil.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/SessionUtil.java
index 4436638..1ddf318 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/SessionUtil.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/SessionUtil.java
@@ -22,12 +22,12 @@ import org.gcube.portlets.user.td.gwtservice.shared.csv.CSVImportSession;
 import org.gcube.portlets.user.td.gwtservice.shared.sdmx.SDMXExportSession;
 import org.gcube.portlets.user.td.gwtservice.shared.sdmx.SDMXImportSession;
 import org.gcube.portlets.user.td.gwtservice.shared.source.SDMXRegistrySource;
-import org.gcube.portlets.user.td.gwtservice.shared.tr.TRId;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.TabResource;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.open.TDOpenSession;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.type.Agencies;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.type.Codelist;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.type.Dataset;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java
index f1921d3..da32db8 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java
@@ -84,7 +84,6 @@ import org.gcube.portlets.user.td.gwtservice.shared.sdmx.SDMXImportSession;
 import org.gcube.portlets.user.td.gwtservice.shared.source.SDMXRegistrySource;
 import org.gcube.portlets.user.td.gwtservice.shared.task.State;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.ColumnData;
-import org.gcube.portlets.user.td.gwtservice.shared.tr.TRId;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.TabResource;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.TableData;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.metadata.TRAgencyMetadata;
@@ -105,6 +104,7 @@ import org.gcube.portlets.user.td.gwtservice.shared.tr.table.metadata.TabVersion
 import org.gcube.portlets.user.td.gwtservice.shared.tr.type.Agencies;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.type.Codelist;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.type.Dataset;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/csv/CSVExportMonitor.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/csv/CSVExportMonitor.java
index fd4e0d4..128c12e 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/csv/CSVExportMonitor.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/csv/CSVExportMonitor.java
@@ -6,8 +6,8 @@ package org.gcube.portlets.user.td.gwtservice.shared.csv;
 import java.io.Serializable;
 
 import org.gcube.portlets.user.td.gwtservice.shared.task.State;
-import org.gcube.portlets.user.td.gwtservice.shared.tr.TRId;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.table.metadata.TabExportMetadata;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 /**
  * 
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/csv/CSVImportMonitor.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/csv/CSVImportMonitor.java
index e3753d2..091cff6 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/csv/CSVImportMonitor.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/csv/CSVImportMonitor.java
@@ -6,7 +6,7 @@ package org.gcube.portlets.user.td.gwtservice.shared.csv;
 import java.io.Serializable;
 
 import org.gcube.portlets.user.td.gwtservice.shared.task.State;
-import org.gcube.portlets.user.td.gwtservice.shared.tr.TRId;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 /**
  * 
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/sdmx/SDMXExportMonitor.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/sdmx/SDMXExportMonitor.java
index 6999a8f..565f3e5 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/sdmx/SDMXExportMonitor.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/sdmx/SDMXExportMonitor.java
@@ -3,8 +3,8 @@ package org.gcube.portlets.user.td.gwtservice.shared.sdmx;
 import java.io.Serializable;
 
 import org.gcube.portlets.user.td.gwtservice.shared.task.State;
-import org.gcube.portlets.user.td.gwtservice.shared.tr.TRId;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.table.metadata.TabExportMetadata;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 
 /**
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/sdmx/SDMXImportMonitor.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/sdmx/SDMXImportMonitor.java
index 1331b1c..532ef9c 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/sdmx/SDMXImportMonitor.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/sdmx/SDMXImportMonitor.java
@@ -3,7 +3,7 @@ package org.gcube.portlets.user.td.gwtservice.shared.sdmx;
 import java.io.Serializable;
 
 import org.gcube.portlets.user.td.gwtservice.shared.task.State;
-import org.gcube.portlets.user.td.gwtservice.shared.tr.TRId;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 
 /**
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/ColumnData.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/ColumnData.java
index dd519b3..6c50449 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/ColumnData.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/ColumnData.java
@@ -2,6 +2,8 @@ package org.gcube.portlets.user.td.gwtservice.shared.tr;
 
 import java.io.Serializable;
 
+import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
+
 /**
  * 
  * @author "Giancarlo Panichi" <a
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/TRId.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/TRId.java
deleted file mode 100644
index e450602..0000000
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/TRId.java
+++ /dev/null
@@ -1,89 +0,0 @@
-package org.gcube.portlets.user.td.gwtservice.shared.tr;
-
-import java.io.Serializable;
-
-/**
- * 
- * @author "Giancarlo Panichi" <a
- *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
- * 
- */
-public class TRId implements Serializable {
-
-	private static final long serialVersionUID = 192846115142001630L;
-
-	
-	/**
-	 * Tabular resource id
-	 */
-	String id;
-
-	/**
-	 * Last table id of tabular resource
-	 */
-	String tableId;
-
-	/**
-	 * Type of last table 
-	 */
-	String tableType;
-	
-	
-	public TRId() {
-
-	}
-
-	public TRId(String id) {
-		this.id = id;
-		this.tableId = null;
-		this.tableType = null;
-	}
-
-	
-
-	public TRId(String id, String tableId) {
-		this.id = id;
-		this.tableId = tableId;
-		this.tableType = null;
-	}
-
-	public TRId(String id, String tableId, String tableType) {
-		this.id = id;
-		this.tableId = tableId;
-		this.tableType = null;
-	}
-
-	
-	public String getTableId() {
-		return tableId;
-	}
-
-	public void setTableId(String tableId) {
-		this.tableId = tableId;
-	}
-
-	public String getId() {
-		return id;
-	}
-
-	public void setId(String id) {
-		this.id = id;
-	}
-
-	public String getTableType() {
-		return tableType;
-	}
-
-	public void setTableType(String tableType) {
-		this.tableType = tableType;
-	}
-
-	@Override
-	public String toString() {
-		return "TRId [id=" + id + ", tableId=" + tableId + ", tableType="
-				+ tableType + "]";
-	}
-	
-	
-
-}
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/TabResource.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/TabResource.java
index 63a7fee..06b1ccb 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/TabResource.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/TabResource.java
@@ -2,7 +2,7 @@ package org.gcube.portlets.user.td.gwtservice.shared.tr;
 
 import java.io.Serializable;
 
-import org.gcube.portlets.user.td.gwtservice.shared.tr.TRId;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 
 /**
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/TableData.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/TableData.java
index cf873ec..0aa267b 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/TableData.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/TableData.java
@@ -3,6 +3,8 @@ package org.gcube.portlets.user.td.gwtservice.shared.tr;
 import java.io.Serializable;
 import java.util.ArrayList;
 
+import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
+
 /**
  * 
  * @author "Giancarlo Panichi" <a
diff --git a/src/main/resources/org/gcube/portlets/user/td/gwtservice/TDGWTService.gwt.xml b/src/main/resources/org/gcube/portlets/user/td/gwtservice/TDGWTService.gwt.xml
index 8ea4ea0..dd95525 100644
--- a/src/main/resources/org/gcube/portlets/user/td/gwtservice/TDGWTService.gwt.xml
+++ b/src/main/resources/org/gcube/portlets/user/td/gwtservice/TDGWTService.gwt.xml
@@ -18,9 +18,11 @@
   <inherits name='com.sencha.gxt.ui.GXT' />
   <inherits name="com.allen_sauer.gwt.log.gwt-log-TRACE" />
   <inherits name="com.google.gwt.resources.Resources" />
+  
+  <inherits name='org.gcube.portlets.user.td.widgetcommonevent.WidgetCommonEvent' />
   	
   <!-- Specify the app entry point class.                         -->  
-<!--   <entry-point class='org.gcube.portlets.user.td.information.client.InformationEntry' /> -->
+  <!--   <entry-point class='org.gcube.portlets.user.td.information.client.InformationEntry' /> -->
 
   <!-- Specify the paths for translatable code                    -->
   <source path='client' />
diff --git a/src/test/resources/org/gcube/portlets/user/td/gwtservice/TDGWTServiceJUnit.gwt.xml b/src/test/resources/org/gcube/portlets/user/td/gwtservice/TDGWTServiceJUnit.gwt.xml
index 1b5f789..ddda6cc 100644
--- a/src/test/resources/org/gcube/portlets/user/td/gwtservice/TDGWTServiceJUnit.gwt.xml
+++ b/src/test/resources/org/gcube/portlets/user/td/gwtservice/TDGWTServiceJUnit.gwt.xml
@@ -2,7 +2,7 @@
 <module rename-to="TDGWTServiceJUnit">
 	<!-- Inherit our applications main module. -->
 	<inherits name='org.gcube.portlets.user.td.gwtservice.TDGWTService' />
-
+	
 	<!-- Specify the path to any remote services. -->
 	<servlet path="/TDGWTService"
 		class="org.gcube.portlets.user.td.gwtservice.server.TDGWTServiceImpl" />