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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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