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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 286001 to 287000 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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