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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 264001 to 265000 of 300000 Page: of 300 GoPage size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

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>
<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>

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