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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 269001 to 270000 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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