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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 106001 to 107000 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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