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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...41 42 43 44 45 46 47 48 49 50 ... Item 45001 to 46000 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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