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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 64001 to 65000 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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