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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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