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View Full Version : [CLOSED] Buffer scrolling gridpanel does not Work for Lockable feature is enabled.



RCM
Oct 15, 2012, 6:29 PM
Hi Danil,

Please could you also verify that there is a defect when lock is enabled and buffered is set to true. I am not able to scroll past the records being displayed in the grid view using my mouse. The scroll bar keeps reverting to the first records in the View.

See sample below.


Controller


public class GridController : Controller
{
//
// GET: /Grid/

public ActionResult Index()
{
return View();
}


public StoreResult GetData( string filter, Boolean throwerror , int Start = 0, int PageSize =1, int PageIndex = 1)
{


StoreResult response = new StoreResult();

List<User> data = new List<User>();

Random randow = new Random();
DateTime now = DateTime.Now;

for (int i = Start + 1; i <= Start + PageSize; i++)
{
User user = new User()
{
Firstname = "User " + i,
Lastname = "User Last " + i,
Age = i + 23
};

data.Add(user);
}

response.Data = data;
response.Total = 3000;

return response;
}

}

public class User
{
public String Firstname { get; set; }

public String Lastname { get; set; }

public int Age { get; set; }
}



VIEW


<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage" %>

<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
<meta content="NO-CACHE" http-equiv="CACHE-CONTROL" />
<%-- Override the default label seperator and set to ""--%>
<ext:ResourcePlaceHolder runat="server" Mode="ScriptFiles" />
<script type="text/javascript">
Ext.Component.prototype.labelSeparator = "";
</script>
<script src="/Scripts/GridView.js" type="text/javascript"></script>
<style type="text/css">
.Header
{
font: 12px helvetica,arial,sans-serif;
}
.list-over
{
background-color: white;
}

.my-listview .x-list-body dt
{
white-space: normal;
cursor: arrow;
}
</style>
<script type="text/javascript">
var formatDate = function (v) {
return value.format(Common.GetJSDateFormat());
};
</script>
</head>
<body>
<ext:ResourceManager runat="server">
<Listeners>
</Listeners>
</ext:ResourceManager>
<ext:Viewport ID="viewportResultView" runat="server" Layout="FitLayout" IDMode="Static">
<Items>
<ext:GridPanel ID="gridPanelGridView" EnableLocking ="true" runat="server" Region="Center">
<TopBar>
<ext:Toolbar runat ="server">
<Items>
<ext:Button runat ="server" Text ="Load With Error">
<Listeners>
<Click Handler="GridView.LoadAndThrowError();" />
</Listeners>
</ext:Button>
</Items>
</ext:Toolbar>
</TopBar>
<SelectionModel>
<ext:RowSelectionModel runat="server" PruneRemoved="false" Mode="Multi" />
</SelectionModel>
<ColumnModel>
<Columns>
<ext:RowNumbererColumn runat="server" Width="50" Sortable="false" />
</Columns>
<Listeners>
</Listeners>
</ColumnModel>
<Store>
<ext:Store runat="server" Buffered="true" PageSize="5">
<Model>
<ext:Model runat="server">
<Fields>
<ext:ModelField Name="dummy" />
</Fields>
</ext:Model>
</Model>
</ext:Store>
</Store>
<Features>
<ext:GridFilters runat="server" ID="gridFiltersGridView" Local="false" MenuFilterText="temp"
ParamPrefix="filter" AutoDataBind="true">
<Filters>
<ext:BooleanFilter />
</Filters>
<Listeners>
</Listeners>
</ext:GridFilters>
</Features>
<View>
<ext:GridView LoadingText="" LoadMask="false">
<Listeners>
<ViewReady Handler="GridView.InitializeView();" />
</Listeners>
</ext:GridView>
</View>
<Listeners>
<CellDblClick Fn="" />
<ContainerContextMenu Fn="" />

</Listeners>
</ext:GridPanel>
</Items>
<Listeners>
<Render />
</Listeners>
</ext:Viewport>
</body>
</html>



JS




/*global Ext:false */
/*

This file is part of Ext JS 4

Copyright (c) 2011 Sencha Inc

Contact: http://www.sencha.com/contact

GNU General Public License Usage
This file may be used under the terms of the GNU General Public License version 3.0 as published by the Free Software Foundation and appearing in the file LICENSE included in the packaging of this file. Please review the following information to ensure the GNU General Public License version 3.0 requirements will be met: http://www.gnu.org/copyleft/gpl.html.

If you are unsure which license is appropriate for your use, please contact the sales department at http://www.sencha.com/contact.

*/
Ext.Loader.setConfig({enabled: true});
Ext.Loader.setPath('Ext.ux', 'ux');
Ext.require([
'Ext.grid.*',
'Ext.data.*',
'Ext.ux.grid.FiltersFeature',
'Ext.toolbar.Paging'
]);

Ext.override(Ext.grid.Panel, {
normalCfgCopy: ['invalidateScrollerOnRefresh', 'verticalScroller', 'verticalScrollDock', 'verticalScrollerType', 'scroll', 'features'],
lockedCfgCopy: ['invalidateScrollerOnRefresh', 'features']
});


Ext.define('Product', {
extend: 'Ext.data.Model',
fields: [{
name: 'id',
type: 'int'
}, {
name: 'company'
}, {
name: 'price',
type: 'float'
}, {
name: 'date',
type: 'date',
dateFormat: 'Y-m-d'
}, {
name: 'visible',
type: 'boolean'
}, {
name: 'size'
}]
});



GridView = {

InitializeView: function () {

GridView.ReconfigureGrid();
},

CheckBoxHeaderClicked: function (e, t) {
if (t && t.type === "checkbox" && t.id === "gridview-header-checkbox-columnWorkItemSelections") {
var dataIndex = t.getAttribute('dataIndex');
var grid = App.gridPanelGridView;
grid.store.each(function (record) {
record.data[dataIndex] = t.checked;
});
grid.store.commitChanges();
grid.view.refresh();
}
},



ReconfigureGrid: function () {
var columns = [
{
Xtype: "checkcolumn",
editable: true,
menuDisabled: true,
dataIndex: "columnWorkItemSelections",
onElClick: GridView.CheckBoxHeaderClicked,
renderTpl: "<div id=\"{id}-titleEl\" {tipMarkup}class=\"x-column-header-inner gridview-header-container\"> <span id=\"{id}-textEl\" class=\"x-column-header-text\"><input id=\"gridview-header-checkbox-{id}\" type=\"checkbox\" dataIndex =\"columnWorkItemSelections\" class=\"gridview-header-checkbox\"></input>{text} </span> <tpl if=\"!menuDisabled\"> <div id=\"{id}-triggerEl\" class=\"x-column-header-trigger\"></div> </tpl> </div>"
}];

columns.push({ Xtype: "gridcolumn", text: 'First Name', dataIndex: 'Firstname', sourceIndex: "Firstname", locked: true, filterable: true, renderer: "", resizable: true, editable: false, isIcon: false, datatype: "string", hidden: false, width: 100, hasCheckBoxColumn: false });
columns.push({ Xtype: "gridcolumn", text: 'Last Name', dataIndex: 'Lastname', sourceIndex: "Lastname", locked: true, renderer: "", resizable: true, editable: false, isIcon: false, datatype: "string", hidden: false, width: 100, hasCheckBoxColumn: false });
columns.push({ Xtype: "gridcolumn", text: 'Age', dataIndex: 'Age', sourceIndex: "Age", locked: false, filterable: true, renderer: "", resizable: true, editable: false, isIcon: false, datatype: "string", hidden: false, width: 100, hasCheckBoxColumn: false });


var cols = new Array();
for (var index = 0; index < columns.length; index++) {

cols.push(columns[index]);
}


var fields = [{ type: 'boolean', name: 'columnWorkItemSelections' }, { name: 'Firstname', type: 'string' }, { name: 'Lastname', type: 'string' }, { name: 'Age', type: 'int'}];

var grid = App.gridPanelGridView;

var store = GridView.CreateStore(fields);


grid.reconfigureLockable(store, columns);

GridView.SetGridFilters(columns, fields, store);

store.loadPage(1);

},



CreateStore: function (fields) {

return Ext.create('Ext.data.JsonStore', {
remoteSort: true,
remoteFilter: true,
buffered: true,
fields: fields,
autoLoad: false,
pageSize: 1000,
showWarningOnFailure: false,
proxy: {
type: "ajax",
url: "/Grid/GetData",
reader: {
root: "data",
type: "json",
totalProperty: 'total',
messageProperty: "message"
},
extraParams: {
ResultSetId: 1,
WorkflowStateId: 1,
TimePeriodId: 1,
RiskId: 1,
WorkitemPropertyId: 1,
WorkItemTypeId: 1,
TotalRecords: 1,
ResultSetTableName: 'namwe',
ResultSetLinkTableName: 'name'
},
groupParam: "Group",
limitParam: "PageSize",
pageParam: "PageIndex",
directionParam: "SortDirection",
sortParam: "Sort",
startParam: "Start",
listeners: {
exception: { fn: function (el, response, operation, eOpts) {

alert(operation.getError());

}
}//end exception
}
},
listeners: {
beforeload: { fn: function (store, operation, eOpts) {
var throwerror = false;

if (operation.throwerror) {
throwerror = operation.throwerror;
}

//Apply additional filter params
Ext.apply(store.getProxy().extraParams, {
throwerror: throwerror
});


}
},
load: { fn: function (store, operation, eOpts) {


//parent.Common.UnMask();
}
},

exception: { fn: function (el, response, operation, eOpts) {

alert(operation.getError());

}
}//end exception
}
});
},

SetGridFilters: function (columns, fields, store) {

App.gridPanelGridView.lockedGrid.filters.clearFilt ers();
App.gridPanelGridView.normalGrid.filters.clearFilt ers();
for (var i = 0; i < columns.length; i++) {
for (var j = 0; j < fields.length; j++) {
if (columns[i].dataIndex == fields[j].name) {
App.gridPanelGridView.normalGrid.filters.addFilter ({ dataIndex: columns[i].dataIndex, type: fields[j].type });
App.gridPanelGridView.lockedGrid.filters.addFilter ({ dataIndex: columns[i].dataIndex, type: fields[j].type });
break;
}
}
}

App.gridPanelGridView.lockedGrid.bindStore(store);
App.gridFiltersGridView.bindStore(store);
},

LoadAndThrowError: function () {

App.gridPanelGridView.store.loadPage(1, { throwerror: true });
},



CreateGrid: function (columns, fields) {

var store = Ext.create('Ext.data.JsonStore', {
// store configs
autoDestroy: true,
remoteSort: true,
remoteFilter: true,
autoLoad: false,
buffered: true,
fields: fields,
proxy: {
type: 'ajax',
url: "/Grid/GetData",
reader: {
type: 'json',
root: 'data',
idProperty: 'id',
totalProperty: 'total'
}
},
groupParam: "Group",
limitParam: "PageSize",
pageParam: "PageIndex",
directionParam: "SortDirection",
sortParam: "Sort",
startParam: "Start",
remoteSort: false,
sorters: [{
property: 'Age',
direction: 'ASC'
}],
pageSize: 1000
});




var grid = Ext.create('Ext.grid.Panel', {
border: false,
store: store,
columns: columns,
loadMask: true

});



var win = Ext.create('Ext.Window', {
title: 'Grid Filters Example',
height: 400,
width: 700,
layout: 'fit',
items: grid
}).show();

store.load();



}


}

Daniil
Oct 16, 2012, 2:02 PM
Hi @RCM,

Thank you for the report.

Could you, please, simplify a sample as much as you can?

RCM
Oct 16, 2012, 4:21 PM
Hi,

I never wanted to simply beyond what I sent as I am not sure if one of the pieces that I have included might be causing the issue. The sample should run ok, are you having a problem getting it to run.

Daniil
Oct 16, 2012, 5:08 PM
This technique helps to simplify any sample.
http://forums.ext.net/showthread.php?13672&p=56687&viewfull=1#post56687

Daniil
Oct 22, 2012, 1:11 PM
Hi @RCM,

Please clarify is the issue still actual?

I was unable to reproduce it with my test case.

RCM
Oct 23, 2012, 4:17 PM
Hi,

I am still getting the issue. I have not gotten a chance to simplify my test case as yet. I will post as soon as it is done.

thank you.

Daniil
Oct 23, 2012, 7:12 PM
Thank you. We will be happy to investigate a sample.

NOTE:

Marked [CLOSED] for now. Please feel free to update the thread with a sample to reproduce.