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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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

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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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