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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 60001 to 61000 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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