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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 288001 to 289000 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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