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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...91 92 93 94 95 96 97 98 99 100 ... Item 91001 to 92000 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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