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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 270001 to 271000 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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