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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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