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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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