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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...31 32 33 34 35 36 37 38 39 40 ... Item 35001 to 36000 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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