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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 274001 to 275000 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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