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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 263001 to 264000 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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