Error this.proxy is null

[alkasoam]

Hi All, below is the code of my JSP. It gives error "this.proxy is null or not an object" wheneve i try to use ds.load() or ds.reload() to re-populate my grid with the updated data. Any quick help would be highly appreciated. Thanks in advance.

<%@

page language="java" contentType="text/html;charset=UTF-8"%>
<%@taglib uri="http://beehive.apache.org/netui/tags-html-1.0" prefix="netui"%>
<%@taglib uri="http://beehive.apache.org/netui/tags-databinding-1.0" prefix="netui-data"%>
<%@taglib uri="http://beehive.apache.org/netui/tags-template-1.0" prefix="netui-template"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>

<

style type="text/css">

.x-grid3-cell-inner,.x-grid3-hd-inner {
overflow:hidden;
padding:3px 3px 3px 5px;
white-space:normal;
}

</

style>

<%

com.bea.netuix.servlets.controls.window.WindowPresentationContext wpc = com.bea.netuix.servlets.controls.window.WindowPresentationContext.getWindowPresentationContext(request);
com.bea.portlet.PostbackURL postbackURL = com.bea.portlet.PostbackURL.createPostbackURL(request, response);
String deleteAlertURLBuffer = postbackURL + "&" + wpc.getLabel();

%>

<

script type="text/javascript">

Ext.BLANK_IMAGE_URL =

'/supplierPortalWeb/framework/skins/supplier/images/s.gif';

Ext.onReady(function(){

Ext.QuickTips.init();

var xg = Ext.grid;
// SPP2: Added - Checkbox selection model is created.
var checkboxSel = new Ext.grid.CheckboxSelectionModel({width: 43});

// shared reader
var reader = new Ext.data.ArrayReader({}, [
{name: 'message'},
{name: 'company'},
{name: 'lastChange', type: 'date'},
{name:'alertId'}
]);

var ds = new Ext.data.GroupingStore({
reader: reader,
data: xg.dummyData,
sortInfo:{field: 'lastChange', direction: "DESC"},
groupField:'company'
});

var grid = new xg.GridPanel({
store: ds,
columns: [

{id:'message',header: "Message", sortable: true, dataIndex: 'message'},
{header: "Company", width: 40, sortable: true, dataIndex: 'company'},
{header: "Date", width: 14, sortable: true, renderer: Ext.util.Format.dateRenderer('m/d/Y'), dataIndex: 'lastChange'}

// SPP2: Added - Checkboxes are added.
, checkboxSel
],

sm: checkboxSel,
// SPP2: Add - Adding the delete button on right
bbar:['->',
{text:'Delete', tooltip:'Click to delete checked alerts' , icon:'/supplierPortalWeb/framework/skins/supplier/images/icon-delete.gif' , cls:'x-btn-text-icon' , handler: function(){
Ext.Msg.show({
title:'Delete alert(s)?',
msg: 'Are you sure to delete alert(s)?',
buttons: Ext.Msg.YESNO,
fn:function(btn){
var deletedIDs=[]; //array of selected alerts

if(btn=='yes'){
var selectedRows=checkboxSel.getSelections();
if(selectedRows.length>0){
for(i=0;i<selectedRows.length;i++){
deletedIDs.push(selectedRows[i].get('alertId'));
}

var

ids = deletedIDs.toString()
Ext.Ajax.request({
url : '<%=deleteAlertURLBuffer%>' + "_actionOverride=%2Fcom%2Fboehringer%2Fsupplier%2Fpageflows%2Falert%2FupdateAlert&amp;AlertController_2",
method: 'POST',
params :{
alertIDs:ids
},
success: function(response, opts) {
ds.reload();
}
}
);
}else{
alert("please... Select at least one alert!");
}
}else if(btn=='no'){
return false;
}
},
animEl: 'elId',
icon: Ext.MessageBox.QUESTION
});
}}],
view: new Ext.grid.GroupingView({
forceFit:true,
scrollOffset: 0,
groupTextTpl: '{text} ({[values.rs.length]} {[values.rs.length > 1 ? "Items" : "Item"]})'
}),

frame:true,
width: 945,
height: 300,
footer: true,
collapsible: false,
animCollapse: false,
iconCls: 'icon-grid',
renderTo: 'subscription-alert-grid'
});

}

);

Ext.grid.dummyData = [
<c:forEach items="${pageFlow.subscriptionAlertsList}" var="item" varStatus="status">
['${fn:replace(item.content,"'","&#39")}','${fn:replace(item.supplierName,"'","&#39")}','${item.createDateAsDate}','${item.subscriptionAlertByUserId}']
<c:if test="${!status.last}" >,</c:if>
</c:forEach>
];

// Array data for the grids

</

script>
<h1>Alerts</h1>

<div id="subscription-alert-grid"></div>

[jay@moduscreate.com]

Please repost your code within CODE tags.

[alkasoam]

Hi All, below is the code of my JSP. It gives error "this.proxy is null or not an object" wheneve i try to use ds.load() or ds.reload() to re-populate my grid with the updated data. Any quick help would be highly appreciated. Thanks in advance.

<%@ 
page language="java" contentType="text/html;charset=UTF-8"%>
<%@taglib uri="http://beehive.apache.org/netui/tags-html-1.0" prefix="netui"%>
<%@taglib uri="http://beehive.apache.org/netui/tags-databinding-1.0" prefix="netui-data"%>
<%@taglib uri="http://beehive.apache.org/netui/tags-template-1.0" prefix="netui-template"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>

<
style type="text/css">

.x-grid3-cell-inner,.x-grid3-hd-inner {
overflow:hidden;
padding:3px 3px 3px 5px;
white-space:normal;
}

</
style>

<%
com.bea.netuix.servlets.controls.window.WindowPresentationContext wpc = com.bea.netuix.servlets.controls.window.WindowPresentationContext.getWindowPresentationContext(request); 
com.bea.portlet.PostbackURL postbackURL = com.bea.portlet.PostbackURL.createPostbackURL(request, response);
String deleteAlertURLBuffer = postbackURL + "&" + wpc.getLabel();

%>
<
script type="text/javascript">

Ext.BLANK_IMAGE_URL = 
'/supplierPortalWeb/framework/skins/supplier/images/s.gif';
Ext.onReady(function(){

Ext.QuickTips.init();
var xg = Ext.grid;
// SPP2: Added - Checkbox selection model is created.
var checkboxSel = new Ext.grid.CheckboxSelectionModel({width: 43});
// shared reader
var reader = new Ext.data.ArrayReader({}, [
{name: 'message'},
{name: 'company'},
{name: 'lastChange', type: 'date'},
{name:'alertId'}
]); 
var ds = new Ext.data.GroupingStore({
reader: reader,
data: xg.dummyData,
sortInfo:{field: 'lastChange', direction: "DESC"},
groupField:'company' 
});
var grid = new xg.GridPanel({
store: ds,
columns: [
{id:'message',header: "Message", sortable: true, dataIndex: 'message'},
{header: "Company", width: 40, sortable: true, dataIndex: 'company'},
{header: "Date", width: 14, sortable: true, renderer: Ext.util.Format.dateRenderer('m/d/Y'), dataIndex: 'lastChange'}
// SPP2: Added - Checkboxes are added.
, checkboxSel
],
sm: checkboxSel,
// SPP2: Add - Adding the delete button on right
bbar:['->',
{text:'Delete', tooltip:'Click to delete checked alerts' , icon:'/supplierPortalWeb/framework/skins/supplier/images/icon-delete.gif' , cls:'x-btn-text-icon' , handler: function(){
Ext.Msg.show({
title:'Delete alert(s)?',
msg: 'Are you sure to delete alert(s)?',
buttons: Ext.Msg.YESNO,
fn:function(btn){
var deletedIDs=[]; //array of selected alerts 

if(btn=='yes'){
var selectedRows=checkboxSel.getSelections();
if(selectedRows.length>0){
for(i=0;i<selectedRows.length;i++){
deletedIDs.push(selectedRows[i].get('alertId'));
} 

var 
ids = deletedIDs.toString() 
Ext.Ajax.request({
url : '<%=deleteAlertURLBuffer%>' + "_actionOverride=%2Fcom%2Fboehringer%2Fsupplier%2Fpageflows%2Falert%2FupdateAlert&amp;AlertController_2",
method: 'POST',
params :{
alertIDs:ids
},
success: function(response, opts) {
ds.reload();
}
} 
);
}else{
alert("please... Select at least one alert!");
}
}else if(btn=='no'){
return false;
}
},
animEl: 'elId',
icon: Ext.MessageBox.QUESTION
});
}}],
view: new Ext.grid.GroupingView({
forceFit:true,
scrollOffset: 0,
groupTextTpl: '{text} ({[values.rs.length]} {[values.rs.length > 1 ? "Items" : "Item"]})'
}),
frame:true,
width: 945,
height: 300,
footer: true,
collapsible: false,
animCollapse: false,
iconCls: 'icon-grid',
renderTo: 'subscription-alert-grid'
});

}
);
Ext.grid.dummyData = [
<c:forEach items="${pageFlow.subscriptionAlertsList}" var="item" varStatus="status">
['${fn:replace(item.content,"'","'")}','${fn:replace(item.supplierName,"'","'")}','${item.createDateAsDate}','${item.subscriptionAlertByUserId}']
<c:if test="${!status.last}" >,</c:if>
</c:forEach>
]; 
 
// Array data for the grids
</
script>
<h1>Alerts</h1>
<div id="subscription-alert-grid"></div>