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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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