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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 273001 to 274000 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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