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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 264001 to 265000 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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