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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...251 252 253 254 255 256 257 258 259 260 ... Item 253001 to 254000 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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