diff --git a/source/Ox.UI/js/List/ColumnList.js b/source/Ox.UI/js/List/ColumnList.js
index 4a85fda9..5222028f 100644
--- a/source/Ox.UI/js/List/ColumnList.js
+++ b/source/Ox.UI/js/List/ColumnList.js
@@ -88,6 +88,12 @@ Ox.ColumnList = function(options, self) {
                         }
                     }
                 },
+                open: function(data) {
+                    that.triggerEvent('open', {
+                        id: column.id,
+                        ids: data.ids
+                    });
+                },
                 select: function(data) {
                     self.options.columns[i].selected = data.ids;
                     if (i < self.numberOfColumns - 1) {