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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 275001 to 276000 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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