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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 276001 to 277000 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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