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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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