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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 282001 to 283000 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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