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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...11 12 13 14 15 16 17 18 19 20 ... Item 11001 to 12000 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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