Grid - Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Marketing Manager	Antonio Moreno	England	1 2 3 4 5
2	Sales Manager	Antonio Moreno	Brazil	1 2 3 4 5
3	Marketing Assistant	Elizabeth Lincoln	Italy	1 2 3 4 5
4	Marketing Manager	Hanna Moos	Argentina	1 2 3 4 5
5	Sales Agent	Pascale Cartrain	Bulgaria	1 2 3 4 5
6	Sales Consultant	Hanna Moos	USA	1 2 3 4 5
7	Sales Representative	Pascale Cartrain	Spain	1 2 3 4 5
8	Sales Consultant	Hanna Moos	France	1 2 3 4 5
9	Sales Agent	Howard Snyder	Austria	1 2 3 4 5
10	Sales Representative	Pascale Cartrain	USA	1 2 3 4 5
11	Marketing Assistant	Paul Henriot	France	1 2 3 4 5
12	Accountant	Howard Snyder	Brazil	1 2 3 4 5
13	Accounting Manager	Antonio Moreno	USA	1 2 3 4 5
14	Owner	Hanna Moos	Germany	1 2 3 4 5
15	Marketing Assistant	Elizabeth Lincoln	USA	1 2 3 4 5
16	Marketing Manager	Pascale Cartrain	Italy	1 2 3 4 5
17	Sales Agent	Antonio Moreno	France	1 2 3 4 5
18	Sales Associate	Jaime Yorres	Bulgaria	1 2 3 4 5
19	Sales Agent	Elizabeth Lincoln	Spain	1 2 3 4 5
20	Marketing Manager	Pascale Cartrain	England	1 2 3 4 5
21	Sales Consultant	Paul Henriot	USA	1 2 3 4 5
22	Sales Agent	Patricio Simpson	France	1 2 3 4 5
23	Marketing Assistant	Antonio Moreno	Austria	1 2 3 4 5
24	Sales Manager	Georg Pipps	Bulgaria	1 2 3 4 5
25	Marketing Manager	Georg Pipps	France	1 2 3 4 5
26	Sales Agent	Antonio Moreno	USA	1 2 3 4 5
27	Sales Agent	Paul Henriot	Argentina	1 2 3 4 5
28	Sales Associate	Georg Pipps	Argentina	1 2 3 4 5
29	Sales Representative	Pascale Cartrain	Bulgaria	1 2 3 4 5
30	Owner	Matti Karttunen	Italy	1 2 3 4 5
31	Sales Agent	Hanna Moos	England	1 2 3 4 5
32	Accountant	Georg Pipps	Argentina	1 2 3 4 5
33	Sales Consultant	Hanna Moos	Argentina	1 2 3 4 5
34	Accounting Manager	Paul Henriot	USA	1 2 3 4 5
35	Marketing Assistant	Paul Henriot	Italy	1 2 3 4 5
36	Sales Associate	Matti Karttunen	Italy	1 2 3 4 5
37	Marketing Manager	Elizabeth Lincoln	Argentina	1 2 3 4 5
38	Sales Associate	Antonio Moreno	Italy	1 2 3 4 5
39	Marketing Manager	Paul Henriot	France	1 2 3 4 5
40	Sales Consultant	Elizabeth Lincoln	USA	1 2 3 4 5
41	Accountant	Hanna Moos	Italy	1 2 3 4 5
42	Owner	Pascale Cartrain	Italy	1 2 3 4 5
43	Sales Manager	Pascale Cartrain	Spain	1 2 3 4 5
44	Sales Associate	Jaime Yorres	Austria	1 2 3 4 5
45	Owner	Jaime Yorres	USA	1 2 3 4 5
46	Sales Agent	Antonio Moreno	Germany	1 2 3 4 5
47	Marketing Manager	Paul Henriot	Austria	1 2 3 4 5
48	Sales Consultant	Paul Henriot	Austria	1 2 3 4 5
49	Sales Agent	Elizabeth Lincoln	Spain	1 2 3 4 5
50	Marketing Manager	Pascale Cartrain	Italy	1 2 3 4 5
51	Owner	Paul Henriot	Brazil	1 2 3 4 5
52	Marketing Assistant	Patricio Simpson	Spain	1 2 3 4 5
53	Sales Agent	Howard Snyder	Brazil	1 2 3 4 5
54	Sales Manager	Antonio Moreno	France	1 2 3 4 5
55	Accountant	Patricio Simpson	Bulgaria	1 2 3 4 5
56	Marketing Assistant	Matti Karttunen	Italy	1 2 3 4 5
57	Sales Agent	Antonio Moreno	Spain	1 2 3 4 5
58	Accountant	Matti Karttunen	Spain	1 2 3 4 5
59	Sales Manager	Hanna Moos	Bulgaria	1 2 3 4 5
60	Marketing Assistant	Hanna Moos	USA	1 2 3 4 5
61	Accounting Manager	Paul Henriot	England	1 2 3 4 5
62	Accounting Manager	Jaime Yorres	Italy	1 2 3 4 5
63	Sales Agent	Paul Henriot	Brazil	1 2 3 4 5
64	Sales Manager	Matti Karttunen	England	1 2 3 4 5
65	Owner	Pascale Cartrain	Bulgaria	1 2 3 4 5
66	Sales Manager	Hanna Moos	Brazil	1 2 3 4 5
67	Sales Manager	Pascale Cartrain	England	1 2 3 4 5
68	Sales Agent	Patricio Simpson	Bulgaria	1 2 3 4 5
69	Accountant	Elizabeth Lincoln	Brazil	1 2 3 4 5
70	Accountant	Hanna Moos	England	1 2 3 4 5
71	Sales Consultant	Pascale Cartrain	Italy	1 2 3 4 5
72	Sales Manager	Howard Snyder	Brazil	1 2 3 4 5
73	Sales Representative	Jaime Yorres	Spain	1 2 3 4 5
74	Accountant	Patricio Simpson	Austria	1 2 3 4 5
75	Owner	Antonio Moreno	Germany	1 2 3 4 5
76	Accounting Manager	Elizabeth Lincoln	USA	1 2 3 4 5
77	Sales Representative	Paul Henriot	Argentina	1 2 3 4 5
78	Marketing Manager	Georg Pipps	Bulgaria	1 2 3 4 5
79	Marketing Assistant	Hanna Moos	Brazil	1 2 3 4 5
80	Owner	Pascale Cartrain	England	1 2 3 4 5
81	Sales Associate	Jaime Yorres	France	1 2 3 4 5
82	Marketing Manager	Elizabeth Lincoln	France	1 2 3 4 5
83	Sales Manager	Howard Snyder	Italy	1 2 3 4 5
84	Sales Agent	Elizabeth Lincoln	Spain	1 2 3 4 5
85	Sales Associate	Elizabeth Lincoln	Austria	1 2 3 4 5
86	Sales Manager	Paul Henriot	Argentina	1 2 3 4 5
87	Owner	Hanna Moos	Brazil	1 2 3 4 5
88	Accounting Manager	Pascale Cartrain	Spain	1 2 3 4 5
89	Sales Agent	Paul Henriot	Austria	1 2 3 4 5
90	Sales Agent	Matti Karttunen	Austria	1 2 3 4 5
91	Sales Consultant	Patricio Simpson	USA	1 2 3 4 5
92	Marketing Assistant	Elizabeth Lincoln	Germany	1 2 3 4 5
93	Sales Associate	Elizabeth Lincoln	USA	1 2 3 4 5
94	Sales Representative	Georg Pipps	France	1 2 3 4 5
95	Marketing Manager	Antonio Moreno	Italy	1 2 3 4 5
96	Marketing Manager	Patricio Simpson	Brazil	1 2 3 4 5
97	Sales Manager	Paul Henriot	France	1 2 3 4 5
98	Accounting Manager	Howard Snyder	Brazil	1 2 3 4 5
99	Sales Representative	Paul Henriot	France	1 2 3 4 5
100	Accounting Manager	Matti Karttunen	Argentina	1 2 3 4 5


1 2 3 4 5 6 7 8 9 10 ... Item 1 to 1000 of 300000 Page: of 300 Page size:

Sort Ascending
Sort Descending
Clear Sorting
Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

Isolate this demo as a stand-alone application

About this demo
C#
VB

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="c#" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.GridExamplesCSharp.Performance.Virtualization.DefaultCS" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

Support & Learning Resources

Find Assistance

Submit a support ticket
if you have an active license or trial
Post in the forum
if you don't have access to support

Help Us Improve

Was this example helpful?

YesNo

skins

Grid - Virtualization

Related Resources

Support & Learning Resources

Find Assistance

Help Us Improve