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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 117001 to 118000 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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