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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 276001 to 277000 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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