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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 65001 to 66000 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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