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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 67001 to 68000 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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