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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


1 2 3 4 5 6 7 8 9 10 ... Item 1 to 1000 of 300000 Page: of 300 Page 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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