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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 121001 to 122000 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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