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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 63001 to 64000 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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