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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 266001 to 267000 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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