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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 277001 to 278000 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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