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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 83001 to 84000 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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