Polish.

the new handler onInit is only execute once.

static/plugin_dbui/src/appgridpaging.js

@@ -3,8 +3,8 @@
  * The ptype of this component is pGridPaging.
  *  
  *  
- * NOTE: the number of row load in hte grid the first time is defined
- * by the grid when loading the store.
+ * NOTE: the number of row load in the grid at the first time
+ * is defined by the grid when loading the store.
  * 
  * @version $Id$
  * 
@@ -25,9 +25,7 @@ App.grid.Paging = Ext.extend(Object, {
 
         var bbar;
         
-        grid.pagingInitialized = false;
-        
-        // associate the bbar to the grid store
+        // link the bbar and the grid store
         bbar = grid.getBottomToolbar();
         bbar.bindStore(grid.store);
 
@@ -54,13 +52,17 @@ App.grid.Paging = Ext.extend(Object, {
         
         bbar.show();
         
-        // if the store is already load initialize the parameters
-        // of the paging and slider widgets
-        // Otherwise, way the store is loaded
+        // Initialize the parameters of the paging and slider widgets.
+        // Depends on the status of the store.
+        // Initialization is only performed once.
         if (grid.store.getTotalCount() > 0) {
-            this.onStoreLoad.call(grid, grid.store);
+            
+            this.onInit.call(grid, grid.store);
+        
         } else {
-            grid.store.on('load', this.onStoreLoad, grid);
+        
+            grid.store.on('load', this.onInit, grid, {single: true});
+        
         }
     },
     
@@ -81,10 +83,11 @@ App.grid.Paging = Ext.extend(Object, {
     },
     
     /**
-     * Handler to tune the number of rows per page and the number of page
+     * Handler to initialize the number of rows per page and the number of page
      */
-    onStoreLoad: function (store, records, options) {
+    onInit: function (store, records, options) {
 
+        console.log('fgfghgh');
         var bbar, 
             grid = this, 
             nRows = store.getCount(), 
@@ -94,8 +97,6 @@ App.grid.Paging = Ext.extend(Object, {
             return;
         }
         
-        grid.pagingInitialized = true;
-        
         bbar = grid.getBottomToolbar();
         bbar.pageSize = nRows;