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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 272001 to 273000 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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