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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 261001 to 262000 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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