diff --git a/base/src/org/compiere/model/GridTab.java b/base/src/org/compiere/model/GridTab.java
index 7e4b054177..5780fc2600 100644
--- a/base/src/org/compiere/model/GridTab.java
+++ b/base/src/org/compiere/model/GridTab.java
@@ -789,6 +789,7 @@ public class GridTab implements DataStatusListener, Evaluatee, Serializable
 			}
 		}
 		setCurrentRow(m_currentRow, true);
+		fireStateChangeEvent(new StateChangeEvent(this, StateChangeEvent.DATA_REFRESH_ALL));
 	}   //  dataRefreshAll
 
 	/**
@@ -808,6 +809,7 @@ public class GridTab implements DataStatusListener, Evaluatee, Serializable
 		log.fine("#" + m_vo.TabNo + " - row=" + row);
 		m_mTable.dataRefresh(row);
 		setCurrentRow(row, true);
+		fireStateChangeEvent(new StateChangeEvent(this, StateChangeEvent.DATA_REFRESH));
 	}   //  dataRefresh
 
 
@@ -824,6 +826,7 @@ public class GridTab implements DataStatusListener, Evaluatee, Serializable
 			boolean retValue = (m_mTable.dataSave(manualCmd) == GridTable.SAVE_OK);
 			if (manualCmd)
 				setCurrentRow(m_currentRow, false);
+			fireStateChangeEvent(new StateChangeEvent(this, StateChangeEvent.DATA_SAVE));
 			return retValue;
 		}
 		catch (Exception e)
@@ -864,6 +867,8 @@ public class GridTab implements DataStatusListener, Evaluatee, Serializable
 		log.fine("#" + m_vo.TabNo);
 		m_mTable.dataIgnore();
 		setCurrentRow(m_currentRow, false);    //  re-load data
+		
+		fireStateChangeEvent(new StateChangeEvent(this, StateChangeEvent.DATA_IGNORE));
 		log.fine("#" + m_vo.TabNo + "- fini");
 	}   //  dataIgnore
 
@@ -922,6 +927,8 @@ public class GridTab implements DataStatusListener, Evaluatee, Serializable
 			getField(i).validateValue();
 		}
 		m_mTable.setChanged(false);
+		
+		fireStateChangeEvent(new StateChangeEvent(this, StateChangeEvent.DATA_NEW));
 		return retValue;
 	}   //  dataNew
 
@@ -934,6 +941,7 @@ public class GridTab implements DataStatusListener, Evaluatee, Serializable
 		log.fine("#" + m_vo.TabNo + " - row=" + m_currentRow);
 		boolean retValue = m_mTable.dataDelete(m_currentRow);
 		setCurrentRow(m_currentRow, true);
+		fireStateChangeEvent(new StateChangeEvent(this, StateChangeEvent.DATA_DELETE));
 		return retValue;
 	}   //  dataDelete
 
@@ -2590,7 +2598,23 @@ public class GridTab implements DataStatusListener, Evaluatee, Serializable
 	{
 		m_listenerList.add(DataStatusListener.class, l);
 	}
+	
+	/**
+	 * @param l
+	 */
+	public synchronized void addStateChangeListener(StateChangeListener l) 
+	{
+		m_listenerList.add(StateChangeListener.class, l);
+	}
 
+	/**
+	 * @param l
+	 */
+	public synchronized void removeStateChangeListener(StateChangeListener l) 
+	{
+		m_listenerList.remove(StateChangeListener.class, l);
+	}
+	
 	/**
 	 * Feature Request [1707462]
 	 * Enable runtime change of VFormat
@@ -2677,5 +2701,16 @@ public class GridTab implements DataStatusListener, Evaluatee, Serializable
 		}
 		navigate(to);
 	}
+	
+	private void fireStateChangeEvent(StateChangeEvent e)
+	{
+		StateChangeListener[] listeners = m_listenerList.getListeners(StateChangeListener.class);
+		if (listeners.length == 0)
+			return;
+		for(int i = 0; i < listeners.length; i++) {
+			listeners[i].stateChange(e);
+		}
+		
+	}
 
 }	//	MTab
diff --git a/base/src/org/compiere/model/GridTable.java b/base/src/org/compiere/model/GridTable.java
index 27e1a8d696..2aa3e6dc14 100644
--- a/base/src/org/compiere/model/GridTable.java
+++ b/base/src/org/compiere/model/GridTable.java
@@ -502,6 +502,7 @@ public class GridTable extends AbstractTableModel
 		//
 		m_changed = false;
 		m_rowChanged = -1;
+		m_inserting = false;
 		return true;
 	}	//	open
 
diff --git a/base/src/org/compiere/model/StateChangeEvent.java b/base/src/org/compiere/model/StateChangeEvent.java
new file mode 100644
index 0000000000..c9b07e82c1
--- /dev/null
+++ b/base/src/org/compiere/model/StateChangeEvent.java
@@ -0,0 +1,26 @@
+package org.compiere.model;
+
+import java.util.EventObject;
+
+/**
+ * 
+ * @author Low Heng Sin
+ *
+ */
+public class StateChangeEvent extends EventObject {
+
+	private int eventType;
+
+	public StateChangeEvent(Object source, int eventType) {
+		super(source);
+		this.eventType = eventType;
+	}
+	
+	public final static int DATA_REFRESH_ALL = 0;
+	public final static int DATA_REFRESH = 1;
+	public final static int DATA_NEW = 2;
+	public final static int DATA_DELETE = 3;
+	public final static int DATA_SAVE = 4;
+	public final static int DATA_IGNORE = 5;
+
+}
diff --git a/base/src/org/compiere/model/StateChangeListener.java b/base/src/org/compiere/model/StateChangeListener.java
new file mode 100644
index 0000000000..241774a1e6
--- /dev/null
+++ b/base/src/org/compiere/model/StateChangeListener.java
@@ -0,0 +1,14 @@
+package org.compiere.model;
+
+import java.util.EventListener;
+
+/**
+ * 
+ * @author Low Heng Sin
+ *
+ */
+public interface StateChangeListener extends EventListener {
+
+	public void stateChange(StateChangeEvent event);
+	
+}