diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/util/ComponentsFinder.java b/ganttzk/src/main/java/org/zkoss/ganttz/util/ComponentsFinder.java
index 056a13ace..a3faaebf0 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/util/ComponentsFinder.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/util/ComponentsFinder.java
@@ -26,6 +26,8 @@ import java.util.List;
 
 import org.zkoss.zk.ui.Component;
 import org.zkoss.zul.Grid;
+import org.zkoss.zul.Listbox;
+import org.zkoss.zul.Listitem;
 import org.zkoss.zul.Row;
 import org.zkoss.zul.api.Rows;
 
@@ -73,4 +75,18 @@ public class ComponentsFinder {
         return null;
     }
 
+    public static Listitem findItemByValue(Listbox listbox, Object needle) {
+        if (needle == null) {
+            return null;
+        }
+        for (Object each : listbox.getItems()) {
+            Listitem item = (Listitem) each;
+            Object value = item.getValue();
+            if (needle.toString().equals(value.toString())) {
+                return item;
+            }
+        }
+        return null;
+    }
+
 }