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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 274001 to 275000 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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