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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 282001 to 283000 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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