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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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