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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...31 32 33 34 35 36 37 38 39 40 ... Item 36001 to 37000 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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