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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...31 32 33 34 35 36 37 38 39 40 ... Item 36001 to 37000 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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