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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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