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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 82001 to 83000 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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