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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 280001 to 281000 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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