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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...231 232 233 234 235 236 237 238 239 240 ... Item 230001 to 231000 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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